This section contains configuration examples and commands that you can issue to verify your channelized IQ interface configuration. It contains the following sections:
Figure 1: OC12 Clear Channel on a Channelized OC12 IQ Interface

The key to this simple example is to remove all partitions from the channelized interface. To configure a clear channel on a channelized IQ interface, include the no-partition statement at the [edit interfaces coc12-fpc/pic/0] hierarchy level and select the interface type. After you commit this part of the configuration, the clear channel is set and you can configure the resulting SONET interface normally.
Router A
- [edit]
- interfaces {
-
- coc12-4/2/0 {
- no-partition interface-type so;
- }
-
- so-4/2/0 {
-
- unit 0 {
-
- family inet {
- address 10.245.1.1/30;
- }
- }
- }
- }
To verify correct operation of a channelized OC12 IQ interface configured as a clear channel, use the following commands:
To view the interface names of the physical channelized OC12 IQ interface and the clear channel OC12 interface configured on the channelized IQ interface, use the show interfaces controller command:
user@RouterA> show interfaces controllerController Admin Link coc12-4/2/0 up up # This is the physical channelized OC12 IQ interface. so-4/2/0 up up # This is the resulting SONET OC12 interface.
To view information about the physical channelized interface, include the cxx-fpc/pic/0 option with the show interfaces command:
user@RouterA> show interfaces
extensive coc12-4/2/0 Physical interface: coc12-4/2/0, Enabled, Physical link is Up
Interface index: 74, SNMP ifIndex: 1269, Generation: 73
Link-level type: Controller, MTU: 4474, Clocking: Internal, SONET mode, Speed: OC12, Loopback: None,
FCS: 16, Payload scrambler: Disabled, Parent: None
Device flags : Present Running
Interface flags: Point-To-Point SNMP-Traps
Link flags : None
Hold-times : Up 0 ms, Down 0 ms
Last flapped : 2002-10-09 10:56:45 PDT (05:14:39 ago)
Statistics last cleared: Never
Input errors:
Errors: 0, Drops: 0, Framing errors: 0, Runts: 0, Giants: 0, Bucket drops: 0, Policed discards: 0,
L3 incompletes: 0, L2 channel errors: 0, L2 mismatch timeouts: 0, HS link CRC errors: 0,
HS link FIFO overflows: 0
Output errors:
Carrier transitions: 0, Errors: 0, Drops: 0, Aged packets: 0, HS link FIFO underflows: 0
SONET alarms : None
SONET defects : None
SONET PHY: Seconds Count State
PLL Lock 0 0 OK
PHY Light 0 0 OK
SONET section:
BIP-B1 10 55
SEF 0 0 OK
LOS 0 0 OK
LOF 0 0 OK
ES-S 10
SES-S 0
SEFS-S 0
SONET line:
BIP-B2 10 144
REI-L 0 0
RDI-L 3 1 OK
AIS-L 0 0 OK
BERR-SF 0 0 OK
BERR-SD 1 1 OK
ES-L 10
SES-L 0
UAS-L 0
ES-LFE 3
SES-LFE 3
UAS-LFE 0
Received SONET overhead:
F1 : 0x00, J0 : 0x00, K1 : 0x00, K2 : 0x00
S1 : 0x00
Transmitted SONET overhead:
F1 : 0x00, J0 : 0x01, K1 : 0x00, K2 : 0x00
S1 : 0x00
To view information about the clear channel SONET interface, include the so-fpc/pic/0 (interface name) option with the show interfaces command:
user@RouterA> show interfaces
extensive so-4/2/0 Physical interface: so-4/2/0, Enabled, Physical link is Up
Interface index: 261, SNMP ifIndex: 2000, Generation: 260
Link-level type: PPP, MTU: 4474, Clocking: Internal, SONET mode,
Speed: OC12, Loopback: None, FCS: 16,
Payload scrambler: Enabled, Parent: coc12-4/2/0 (Index 74)
Device flags : Present Running
Interface flags: Point-To-Point SNMP-Traps
Link flags : Keepalives
Hold-times : Up 0 ms, Down 0 ms
Keepalive settings: Interval 10 seconds, Up-count 1, Down-count 3
Keepalive statistics:
Input : 37 (last seen 00:00:04 ago)
Output: 36 (last sent 00:00:09 ago)
LCP state: Opened
NCP state: inet: Opened, inet6: Not-configured, iso: Not-configured, mpls: Not-configured
CHAP state: Not-configured
Last flapped : 2002-10-09 16:04:18 PDT (00:07:26 ago)
Statistics last cleared: Never
Traffic statistics:
Input bytes : 80461791 7435000 bps
Output bytes : 81637408 7502352 bps
Input packets: 34017 275 pps
Output packets: 34298 278 pps
Input errors:
Errors: 0, Drops: 0, Framing errors: 0, Runts: 0, Giants: 0,
Bucket drops: 0, Policed discards: 0,
L3 incompletes: 0, L2 channel errors: 0, L2 mismatch timeouts: 0, HS link CRC errors: 0,
HS link FIFO overflows: 0
Output errors:
Carrier transitions: 1, Errors: 0, Drops: 0, Aged packets: 0, HS link FIFO underflows: 0
Queue counters: Queued packets Transmitted packets Dropped packets
0 best-effort 34129 34129 0
1 expedited-fo 0 0 0
2 assured-forw 0 0 0
3 network-cont 0 0 0
SONET alarms : None
SONET defects : None
SONET path:
BIP-B3 0 0
REI-P 0 0
LOP-P 0 0 OK
AIS-P 0 0 OK
RDI-P 0 0 OK
UNEQ-P 0 0 OK
PLM-P 0 0 OK
ES-P 0
SES-P 0
UAS-P 0
ES-PFE 0
SES-PFE 0
UAS-PFE 0
Received SONET overhead:
C2 : 0xcf, C2(cmp) : 0xcf, F2 : 0x00, Z3 : 0x00
Z4 : 0x00, S1(cmp) : 0x00
Transmitted SONET overhead:
C2 : 0xcf, F2 : 0x00, Z3 : 0x00, Z4 : 0x00
Received path trace: RouterB so-2/2/0
61 72 6d 61 67 6e 61 63 20 73 6f 2d 32 2f 32 2f RouterB so-2/2/0
30 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
00 00 00 00 00 00 00 00 00 00 00 00 00 00 0d 0a ................
Transmitted path trace: RouterA so-4/2/0
74 69 6d 6d 65 73 73 71 75 61 72 65 20 73 6f 2d RouterA so-4/2/0
34 2f 32 2f 30 00 00 00 00 00 00 00 00 00 00 00 ................
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
HDLC configuration:
Policing bucket: Disabled
Shaping bucket : Disabled
Giant threshold: 0, Runt threshold: 0
Packet Forwarding Engine configuration:
Destination slot: 4, PLP byte: 4 (0x00)
CoS transmit queue Bandwidth Buffer Priority Limit
% bps % bytes
0 best-effort 95 590976000 95 0 low none
3 network-control 5 31104000 5 0 low none
Logical interface so-4/2/0.0 (Index 7) (SNMP ifIndex 2001) (Generation 12)
Flags: Point-To-Point SNMP-Traps Encapsulation: PPP
Protocol inet, MTU: 4470, Generation: 18, Route table: 0
Flags: None
Addresses, Flags: Is-Preferred Is-Primary
Destination: 10.245.1.0/30, Local: 10.245.1.1, Broadcast: Unspecified, Generation: 21
Figure 2: Complex Configuration for a Channelized OC12 IQ Interface

Table 8: Complex Channelization for a Channelized OC12 IQ Interface
Figure 2 and Table 8 show a complex channelization structure that you might encounter if you use the full capabilities of a channelized OC12 IQ interface. Partitions 1 and 8 create an OC3 interface, while Partitions 2 and 5 create T3 interfaces out of channelized OC1 interfaces. Partition 3 (channelized OC1 converted to channelized T3) and Partition 6 (channelized OC1) are channelized interfaces that each subdivide into 28 T1 interfaces. Finally, Partition 4 (channelized OC1 converted to channelized T3) and Partition 7 (channelized OC1) are channelized interfaces that each split into 2 channelized T1 interfaces and 26 T1 interfaces. The first channelized T1 splits into 24 DS0 time slots, whereas the second channelized T1 subdivides into 5 DS0 channels and 1 channel group comprised of 19 DS0 channels.
This example shows two NxDS0 mapping methods. Partition 4 uses M13 mapping for North American T-carrier equipment and Partition 7 uses VT mapping for SONET/SDH equipment.
This example also assumes corresponding interfaces. For example, for every sublevel T1 interface you configure on Router A, assume you have configured a matching sublevel or physical T1 interface on a neighboring router.
Router A
- [edit]
- interfaces {
-
- coc12-4/2/0 {
- partition 1 oc-slice 1-3 interface-type so; # Creates OC3
interface so-4/2/0:1.
- partition 2 oc-slice 4 interface-type coc1; # Creates interface
coc1-4/2/0:2.
- partition 3 oc-slice 5 interface-type coc1; # Creates interface
coc1-4/2/0:3.
- partition 4 oc-slice 6 interface-type coc1; # Creates interface
coc1-4/2/0:4.
- partition 5 oc-slice 7 interface-type coc1; # Creates interface
coc1-4/2/0:5.
- partition 6 oc-slice 8 interface-type coc1; # Creates interface
coc1-4/2/0:6.
- partition 7 oc-slice 9 interface-type coc1; # Creates interface
coc1-4/2/0:7.
- partition 8 oc-slice 10-12 interface-type so; # Creates
an OC3 SONET interface:
- } #
so-4/2/0:8.
-
- so-4/2/0:1 {
- encapsulation ppp;
-
- unit 0 {
-
- family inet {
- address 10.255.0.2/30;
- }
- }
- }
-
- coc1-4/2/0:2 {
- no-partition interface-type t3; # This converts the coc1
interface into a
- } #
T3 interface: t3-4/2/0:2.
-
- t3-4/2/0:2 {
- encapsulation ppp;
-
- unit 0 {
-
- family inet {
- address 10.255.0.6/30;
- }
- }
- }
-
- coc1-4/2/0:3 {
- no-partition interface-type ct3; # This converts the coc1
interface into a
- } #
channelized T3 interface: ct3-4/2/0:3.
-
- ct3-4/2/0:3 {
- partition 1-28 interface-type t1; # This converts the channelized
T3 interface
- } #
into 28 T1 channels: t1-4/2/0:3:1 through t1-4/2/0:3:28.
-
- coc1-4/2/0:4 {
- no-partition interface-type ct3; # This converts the coc1
interface into a
- } #
channelized T3 interface: ct3-4/2/0:4.
-
- ct3-4/2/0:4 {
- partition 1-2 interface-type ct1; # This creates ct1-4/2/0:4:1
and ct1-4/2/0:4:2.
- partition 3-28 interface-type t1; # This creates t1-4/2/0:4:3
through
- } #
t1-4/2/0:4:28.
-
- coc1-4/2/0:5 {
- no-partition interface-type t3; # This converts the coc1
interface to a T3:
- } #
t3-4/2/0:5.
-
- t3-4/2/0:5 {
- encapsulation ppp;
-
- unit 0 {
-
- family inet {
- address 10.255.1.90/30;
- }
- }
- }
-
- coc1-4/2/0:6 {
- partition 1-28 interface-type t1; # This converts the channelized
OC1 interface
- } #
into 28 T1s: t1-4/2/0:6:1 through t1-4/2/0:6:28.
-
- coc1-4/2/0:7 {
- partition 1-2 interface-type ct1; # This creates ct1-4/2/0:7:1
and :2.
- partition 3-28 interface-type t1; # This creates t1-4/2/0:7:3
through :28.
- }
-
- so-4/2/0:8 {
- encapsulation ppp;
-
- unit 0 {
-
- family inet {
- address 10.255.2.174/30;
- }
- }
- }
-
- t1-4/2/0:3:1 {
- encapsulation ppp;
-
- unit 0 {
-
- family inet {
- address 10.255.0.10/30;
- }
- }
- }
- ...
-
- t1-4/2/0:3:28 {
- encapsulation ppp;
-
- unit 0 {
-
- family inet {
- address 10.255.0.118/30;
- }
- }
- }
-
- ct1-4/2/0:4:1 {
- partition 1 timeslots 1 interface-type ds; # This creates
24 DS0 channels:
- partition 2 timeslots 2 interface-type ds; # ds-4/2/0:4:1:1
through
- partition 3 timeslots 3 interface-type ds; # ds-4/2/0:4:1:24.
- partition 4 timeslots 4 interface-type ds;
- partition 5 timeslots 5 interface-type ds;
- partition 6 timeslots 6 interface-type ds;
- partition 7 timeslots 7 interface-type ds;
- partition 8 timeslots 8 interface-type ds;
- partition 9 timeslots 9 interface-type ds;
- partition 10 timeslots 10 interface-type ds;
- partition 11 timeslots 11 interface-type ds;
- partition 12 timeslots 12 interface-type ds;
- partition 13 timeslots 13 interface-type ds;
- partition 14 timeslots 14 interface-type ds;
- partition 15 timeslots 15 interface-type ds;
- partition 16 timeslots 16 interface-type ds;
- partition 17 timeslots 17 interface-type ds;
- partition 18 timeslots 18 interface-type ds;
- partition 19 timeslots 19 interface-type ds;
- partition 20 timeslots 20 interface-type ds;
- partition 21 timeslots 21 interface-type ds;
- partition 22 timeslots 22 interface-type ds;
- partition 23 timeslots 23 interface-type ds;
- partition 24 timeslots 24 interface-type ds;
- }
-
- ds-4/2/0:4:1:1 {
- encapsulation ppp;
-
- unit 0 {
-
- family inet {
- address 10.255.0.122/30;
- }
- }
- }
- ...
-
- ds-4/2/0:4:1:24 {
- encapsulation ppp;
-
- unit 0 {
-
- family inet {
- address 10.255.0.214/30;
- }
- }
- }
-
- ct1-4/2/0:4:2 {
- partition 1 timeslots 1-19 interface-type ds; # This creates
a channel group.
- partition 2 timeslots 20 interface-type ds; # ds-4/2/0:4:2:2
through
- partition 3 timeslots 21 interface-type ds; # ds-4/2/0:4:2:6
are single 64-Kbps
- partition 4 timeslots 22 interface-type ds; # NxDS0 channels.
- partition 5 timeslots 23 interface-type ds;
- partition 6 timeslots 24 interface-type ds;
- }
-
- ds-4/2/0:4:2:1 { # This is a channel group with 19 DS0s
bundled as one.
- encapsulation ppp;
-
- unit 0 {
-
- family inet {
- address 10.255.0.218/30;
- }
- }
- }
-
- ds-4/2/0:4:2:2 {
- encapsulation ppp;
-
- unit 0 {
-
- family inet {
- address 10.120.0.222/30;
- }
- }
- }
- ...
-
- ds-4/2/0:4:2:6 {
- encapsulation ppp;
-
- unit 0 {
-
- family inet {
- address 10.120.0.238/30;
- }
- }
- }
-
- t1-4/2/0:4:3 {
- encapsulation ppp;
-
- unit 0 {
-
- family inet {
- address 10.120.0.242/30;
- }
- }
- }
- ...
-
- t1-4/2/0:4:28 {
- encapsulation ppp;
-
- unit 0 {
-
- family inet {
- address 10.255.1.86/30;
- }
- }
- }
-
- t1-4/2/0:6:1 {
- encapsulation ppp;
-
- unit 0 {
-
- family inet {
- address 10.255.1.94/30;
- }
- }
- }
- ...
-
- t1-4/2/0:6:28 {
- encapsulation ppp;
-
- unit 0 {
-
- family inet {
- address 10.255.1.202/30;
- }
- }
- }
-
- ct1-4/2/0:7:1 {
- partition 1 timeslots 1 interface-type ds; # This creates
24 DS0 channels:
- partition 2 timeslots 2 interface-type ds; # ds-4/2/0:7:1:1
through
- partition 3 timeslots 3 interface-type ds; # ds-4/2/0:7:1:24.
- partition 4 timeslots 4 interface-type ds;
- partition 5 timeslots 5 interface-type ds;
- partition 6 timeslots 6 interface-type ds;
- partition 7 timeslots 7 interface-type ds;
- partition 8 timeslots 8 interface-type ds;
- partition 9 timeslots 9 interface-type ds;
- partition 10 timeslots 10 interface-type ds;
- partition 11 timeslots 11 interface-type ds;
- partition 12 timeslots 12 interface-type ds;
- partition 13 timeslots 13 interface-type ds;
- partition 14 timeslots 14 interface-type ds;
- partition 15 timeslots 15 interface-type ds;
- partition 16 timeslots 16 interface-type ds;
- partition 17 timeslots 17 interface-type ds;
- partition 18 timeslots 18 interface-type ds;
- partition 19 timeslots 19 interface-type ds;
- partition 20 timeslots 20 interface-type ds;
- partition 21 timeslots 21 interface-type ds;
- partition 22 timeslots 22 interface-type ds;
- partition 23 timeslots 23 interface-type ds;
- partition 24 timeslots 24 interface-type ds;
- }
-
- ds-4/2/0:7:1:1 {
- encapsulation ppp;
-
- unit 0 {
-
- family inet {
- address 10.255.1.206/30;
- }
- }
- }
- ...
-
- ds-4/2/0:7:1:24 {
- encapsulation ppp;
-
- unit 0 {
-
- family inet {
- address 10.255.2.42/30;
- }
- }
- }
-
- ct1-4/2/0:7:2 {
- partition 1 timeslots 1-19 interface-type ds; # This is
a channel group.
- partition 2 timeslots 20 interface-type ds; # ds-4/2/0:7:2:2
through
- partition 3 timeslots 21 interface-type ds; # ds-4/2/0:7:2:6
are single 64-Kbps
- partition 4 timeslots 22 interface-type ds; # NxDS0 channels.
- partition 5 timeslots 23 interface-type ds;
- partition 6 timeslots 24 interface-type ds;
- }
-
- ds-4/2/0:7:2:1 { # This is a channel group with 19 DS0s
bundled as one.
- encapsulation ppp;
-
- unit 0 {
-
- family inet {
- address 10.255.2.46/30;
- }
- }
- }
-
- ds-4/2/0:7:2:2 {
- encapsulation ppp;
-
- unit 0 {
-
- family inet {
- address 10.255.2.50/30;
- }
- }
- }
- ...
-
- ds-4/2/0:7:2:6 {
- encapsulation ppp;
-
- unit 0 {
-
- family inet {
- address 10.255.2.66/30;
- }
- }
- }
-
- t1-4/2/0:7:3 {
- encapsulation ppp;
-
- unit 0 {
-
- family inet {
- address 10.255.2.70/30;
- }
- }
- }
- ...
-
- t1-4/2/0:7:28 {
- encapsulation ppp;
-
- unit 0 {
-
- family inet {
- address 10.255.2.170/30;
- }
- }
- }
- }
To verify correct operation of a channelized OC12 IQ interface configured for complex channelization, use the following commands:
To view the names of the resulting interfaces and channelized interfaces configured on a channelized OC12 IQ interface, use the show interfaces controller command:
user@RouterA> show interfaces controllerController Admin Link
coc12-4/2/0 up up
so-4/2/0:1 up up
t3-4/2/0:2 up up
ct3-4/2/0:3 up up
t1-4/2/0:3:1 up up
t1-4/2/0:3:2 up up
t1-4/2/0:3:3 up up
t1-4/2/0:3:4 up up
t1-4/2/0:3:5 up up
t1-4/2/0:3:6 up up
t1-4/2/0:3:7 up up
t1-4/2/0:3:8 up up
t1-4/2/0:3:9 up up
t1-4/2/0:3:10 up up
t1-4/2/0:3:11 up up
t1-4/2/0:3:12 up up
t1-4/2/0:3:13 up up
t1-4/2/0:3:14 up up
t1-4/2/0:3:15 up up
t1-4/2/0:3:16 up up
t1-4/2/0:3:17 up up
t1-4/2/0:3:18 up up
t1-4/2/0:3:19 up up
t1-4/2/0:3:20 up up
t1-4/2/0:3:21 up up
t1-4/2/0:3:22 up up
t1-4/2/0:3:23 up up
t1-4/2/0:3:24 up up
t1-4/2/0:3:25 up up
t1-4/2/0:3:26 up up
t1-4/2/0:3:27 up up
t1-4/2/0:3:28 up up
ct3-4/2/0:4 up up
ct1-4/2/0:4:1 up up
ds-4/2/0:4:1:1 up up
ds-4/2/0:4:1:2 up up
ds-4/2/0:4:1:3 up up
ds-4/2/0:4:1:4 up up
ds-4/2/0:4:1:5 up up
ds-4/2/0:4:1:6 up up
ds-4/2/0:4:1:7 up up
ds-4/2/0:4:1:8 up up
ds-4/2/0:4:1:9 up up
ds-4/2/0:4:1:10 up up
ds-4/2/0:4:1:11 up up
ds-4/2/0:4:1:12 up up
ds-4/2/0:4:1:13 up up
ds-4/2/0:4:1:14 up up
ds-4/2/0:4:1:15 up up
ds-4/2/0:4:1:16 up up
ds-4/2/0:4:1:17 up up
ds-4/2/0:4:1:18 up up
ds-4/2/0:4:1:19 up up
ds-4/2/0:4:1:20 up up
ds-4/2/0:4:1:21 up up
ds-4/2/0:4:1:22 up up
ds-4/2/0:4:1:23 up up
ds-4/2/0:4:1:24 up up
ct1-4/2/0:4:2 up up
ds-4/2/0:4:2:1 up up
ds-4/2/0:4:2:2 up up
ds-4/2/0:4:2:3 up up
ds-4/2/0:4:2:4 up up
ds-4/2/0:4:2:5 up up
ds-4/2/0:4:2:6 up up
t1-4/2/0:4:3 up up
t1-4/2/0:4:4 up up
t1-4/2/0:4:5 up up
t1-4/2/0:4:6 up up
t1-4/2/0:4:7 up up
t1-4/2/0:4:8 up up
t1-4/2/0:4:9 up up
t1-4/2/0:4:10 up up
t1-4/2/0:4:11 up up
t1-4/2/0:4:12 up up
t1-4/2/0:4:13 up up
t1-4/2/0:4:14 up up
t1-4/2/0:4:15 up up
t1-4/2/0:4:16 up up
t1-4/2/0:4:17 up up
t1-4/2/0:4:18 up up
t1-4/2/0:4:19 up up
t1-4/2/0:4:20 up up
t1-4/2/0:4:21 up up
t1-4/2/0:4:22 up up
t1-4/2/0:4:23 up up
t1-4/2/0:4:24 up up
t1-4/2/0:4:25 up up
t1-4/2/0:4:26 up up
t1-4/2/0:4:27 up up
t1-4/2/0:4:28 up up
t3-4/2/0:5 up up
coc1-4/2/0:6 up up
t1-4/2/0:6:1 up up
t1-4/2/0:6:2 up up
t1-4/2/0:6:3 up up
t1-4/2/0:6:4 up up
t1-4/2/0:6:5 up up
t1-4/2/0:6:6 up up
t1-4/2/0:6:7 up up
t1-4/2/0:6:8 up up
t1-4/2/0:6:9 up up
t1-4/2/0:6:10 up up
t1-4/2/0:6:11 up up
t1-4/2/0:6:12 up up
t1-4/2/0:6:13 up up
t1-4/2/0:6:14 up up
t1-4/2/0:6:15 up up
t1-4/2/0:6:16 up up
t1-4/2/0:6:17 up up
t1-4/2/0:6:18 up up
t1-4/2/0:6:19 up up
t1-4/2/0:6:20 up up
t1-4/2/0:6:21 up up
t1-4/2/0:6:22 up up
t1-4/2/0:6:23 up up
t1-4/2/0:6:24 up up
t1-4/2/0:6:25 up up
t1-4/2/0:6:26 up up
t1-4/2/0:6:27 up up
t1-4/2/0:6:28 up up
coc1-4/2/0:7 up up
ct1-4/2/0:7:1 up up
ds-4/2/0:7:1:1 up up
ds-4/2/0:7:1:2 up up
ds-4/2/0:7:1:3 up up
ds-4/2/0:7:1:4 up up
ds-4/2/0:7:1:5 up up
ds-4/2/0:7:1:6 up up
ds-4/2/0:7:1:7 up up
ds-4/2/0:7:1:8 up up
ds-4/2/0:7:1:9 up up
ds-4/2/0:7:1:10 up up
ds-4/2/0:7:1:11 up up
ds-4/2/0:7:1:12 up up
ds-4/2/0:7:1:13 up up
ds-4/2/0:7:1:14 up up
ds-4/2/0:7:1:15 up up
ds-4/2/0:7:1:16 up up
ds-4/2/0:7:1:17 up up
ds-4/2/0:7:1:18 up up
ds-4/2/0:7:1:19 up up
ds-4/2/0:7:1:20 up up
ds-4/2/0:7:1:21 up up
ds-4/2/0:7:1:22 up up
ds-4/2/0:7:1:23 up up
ds-4/2/0:7:1:24 up up
ct1-4/2/0:7:2 up up
ds-4/2/0:7:2:1 up up
ds-4/2/0:7:2:2 up up
ds-4/2/0:7:2:3 up up
ds-4/2/0:7:2:4 up up
ds-4/2/0:7:2:5 up up
ds-4/2/0:7:2:6 up up
t1-4/2/0:7:3 up up
t1-4/2/0:7:4 up up
t1-4/2/0:7:5 up up
t1-4/2/0:7:6 up up
t1-4/2/0:7:7 up up
t1-4/2/0:7:8 up up
t1-4/2/0:7:9 up up
t1-4/2/0:7:10 up up
t1-4/2/0:7:11 up up
t1-4/2/0:7:12 up up
t1-4/2/0:7:13 up up
t1-4/2/0:7:14 up up
t1-4/2/0:7:15 up up
t1-4/2/0:7:16 up up
t1-4/2/0:7:17 up up
t1-4/2/0:7:18 up up
t1-4/2/0:7:19 up up
t1-4/2/0:7:20 up up
t1-4/2/0:7:21 up up
t1-4/2/0:7:22 up up
t1-4/2/0:7:23 up up
t1-4/2/0:7:24 up up
t1-4/2/0:7:25 up up
t1-4/2/0:7:26 up up
t1-4/2/0:7:27 up up
t1-4/2/0:7:28 up up
so-4/2/0:8 up up
To verify that your channelized IQ interfaces are working as expected, use the show interfaces command. Use the show interfaces controller command to find the name of the channelized interface you want to view; then include this channelized name (for example, ct3-4/2/0:4) as an option with the show interfaces command.
The next section provides sample show interfaces output for each of the major interface types configured in this example:
user@RouterA> show interfaces
extensive coc12-4/2/0 Physical interface: coc12-4/2/0, Enabled, Physical link is Up
Interface index: 266, SNMP ifIndex: 1269, Generation: 601
Link-level type: Controller, MTU: 4474, Clocking: Internal, SONET mode, Speed: OC12, Loopback: None,
FCS: 16, Payload scrambler: Disabled, Parent: None
Device flags : Present Running
Interface flags: Point-To-Point SNMP-Traps
Link flags : None
Hold-times : Up 0 ms, Down 0 ms
Last flapped : 2002-10-09 17:45:15 PDT (00:14:38 ago)
Statistics last cleared: Never
Input errors:
Errors: 0, Drops: 0, Framing errors: 0, Runts: 0, Giants: 0, Bucket drops: 0, Policed discards: 0,
L3 incompletes: 0, L2 channel errors: 0, L2 mismatch timeouts: 0, HS link CRC errors: 0,
HS link FIFO overflows: 0
Output errors:
Carrier transitions: 0, Errors: 0, Drops: 0, Aged packets: 0, HS link FIFO underflows: 0
SONET alarms : None
SONET defects : None
SONET PHY: Seconds Count State
PLL Lock 0 0 OK
PHY Light 0 0 OK
SONET section:
BIP-B1 14 83
SEF 0 0 OK
LOS 0 0 OK
LOF 0 0 OK
ES-S 14
SES-S 0
SEFS-S 0
SONET line:
BIP-B2 14 162
REI-L 0 0
RDI-L 3 1 OK
AIS-L 0 0 OK
BERR-SF 0 0 OK
BERR-SD 0 0 OK
ES-L 14
SES-L 0
UAS-L 0
ES-LFE 3
SES-LFE 3
UAS-LFE 0
Received SONET overhead:
F1 : 0x00, J0 : 0x00, K1 : 0x00, K2 : 0x00
S1 : 0x00
Transmitted SONET overhead:
F1 : 0x00, J0 : 0x01, K1 : 0x00, K2 : 0x00
S1 : 0x00
user@RouterA> show interfaces
extensive so-4/2/0:8 Physical interface: so-4/2/0:8, Enabled, Physical link is Up
Interface index: 440, SNMP ifIndex: 2640, Generation: 787
Link-level type: PPP, MTU: 4474, Clocking: Internal, SONET mode, Speed: OC3, Loopback: None, FCS: 16,
Payload scrambler: Enabled, Parent: coc12-4/2/0 (Index 266)
Device flags : Present Running
Interface flags: Point-To-Point SNMP-Traps
Link flags : Keepalives
Hold-times : Up 0 ms, Down 0 ms
Keepalive settings: Interval 10 seconds, Up-count 1, Down-count 3
Keepalive statistics:
Input : 0 (last seen: never)
Output: 0 (last sent: never)
LCP state: Conf-ack-sent
NCP state: inet: Down, inet6: Not-configured, iso: Not-configured, mpls: Not-configured
CHAP state: Not-configured
Last flapped : 2002-10-09 17:45:18 PDT (00:11:45 ago)
Statistics last cleared: Never
Traffic statistics:
Input bytes : 5967 56 bps
Output bytes : 12672 128 bps
Input packets: 351 0 pps
Output packets: 704 0 pps
Input errors:
Errors: 0, Drops: 0, Framing errors: 0, Runts: 0, Giants: 0, Bucket drops: 0, Policed discards: 0,
L3 incompletes: 0, L2 channel errors: 0, L2 mismatch timeouts: 0, HS link CRC errors: 0,
HS link FIFO overflows: 0
Output errors:
Carrier transitions: 1, Errors: 0, Drops: 0, Aged packets: 0, HS link FIFO underflows: 0
Queue counters: Queued packets Transmitted packets Dropped packets
0 best-effort 704 0 0
1 expedited-fo 0 0 0
2 assured-forw 0 0 0
3 network-cont 0 0 0
SONET alarms : None
SONET defects : None
SONET path:
BIP-B3 0 0
REI-P 0 0
LOP-P 0 0 OK
AIS-P 0 0 OK
RDI-P 0 0 OK
UNEQ-P 0 0 OK
PLM-P 0 0 OK
ES-P 0
SES-P 0
UAS-P 0
ES-PFE 0
SES-PFE 0
UAS-PFE 0
Received SONET overhead:
C2 : 0xcf, C2(cmp) : 0xcf, F2 : 0x00, Z3 : 0x00
Z4 : 0x00, S1(cmp) : 0x00
Transmitted SONET overhead:
C2 : 0xcf, F2 : 0x00, Z3 : 0x00, Z4 : 0x00
Received path trace: RouterB so-2/2/0:8
61 72 6d 61 67 6e 61 63 20 73 6f 2d 32 2f 32 2f RouterB so-2/2/
30 3a 38 00 00 00 00 00 00 00 00 00 00 00 00 00 0:8.............
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
00 00 00 00 00 00 00 00 00 00 00 00 00 00 0d 0a ................
Transmitted path trace: RouterA so-4/2/0:8
74 69 6d 6d 65 73 73 71 75 61 72 65 20 73 6f 2d RouterA so-
34 2f 32 2f 30 3a 38 00 00 00 00 00 00 00 00 00 4/2/0:8.........
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
HDLC configuration:
Policing bucket: Disabled
Shaping bucket : Disabled
Giant threshold: 0, Runt threshold: 0
Packet Forwarding Engine configuration:
Destination slot: 4, PLP byte: 4 (0x2a)
CoS transmit queue Bandwidth Buffer Priority Limit
% bps % bytes
0 best-effort 95 147744000 95 0 low none
3 network-control 5 7776000 5 0 low none
Logical interface so-4/2/0:8.0 (Index 180) (SNMP ifIndex 2641) (Generation 512)
Flags: Hardware-Down Point-To-Point SNMP-Traps Encapsulation: PPP
Protocol inet, MTU: 4470, Generation: 519, Route table: 0
Flags: Protocol-Down
Addresses, Flags: Dest-route-down Is-Preferred Is-Primary
Destination: 10.255.2.172/30, Local: 10.255.2.174, Broadcast: Unspecified, Generation: 1029
user@RouterA> show interfaces
extensive t3-4/2/0:2 Physical interface: t3-4/2/0:2, Enabled, Physical link is Up
Interface index: 274, SNMP ifIndex: 1982, Generation: 609
Link-level type: PPP, MTU: 4474, Clocking: Internal, Speed: T3, Loopback:None,
FCS: 16,
Mode: C/Bit parity, Parent: coc12-4/2/0 (Index 266)
Device flags : Present Running
Interface flags: Point-To-Point SNMP-Traps
Link flags : Keepalives
Hold-times : Up 0 ms, Down 0 ms
Keepalive settings: Interval 10 seconds, Up-count 1, Down-count 3
Keepalive statistics:
Input : 85 (last seen 00:00:00 ago)
Output: 82 (last sent 00:00:01 ago)
LCP state: Opened
NCP state: inet: Opened, inet6: Not-configured, iso: Not-configured, mpls: Not-configured
CHAP state: Not-configured
Last flapped : 2002-10-09 17:45:15 PDT (00:13:24 ago)
Statistics last cleared: Never
Traffic statistics:
Input bytes : 2546 56 bps
Output bytes : 2732 56 bps
Input packets: 170 0 pps
Output packets: 171 0 pps
Input errors:
Errors: 0, Drops: 0, Framing errors: 0, Bucket drops: 0, Policed discards: 0, L3 incompletes: 0,
L2 channel errors: 0, L2 mismatch timeouts: 0, HS link CRC errors: 0, SRAM errors: 0
Output errors:
Carrier transitions: 1, Errors: 0, Drops: 0, Aged packets: 0
Queue counters: Queued packets Transmitted packets Dropped packets
0 best-effort 171 171 0
1 expedited-fo 0 0 0
2 assured-forw 0 0 0
3 network-cont 0 0 0
Active alarms : None
Active defects : None
DS3 media: Seconds Count State
PLL Lock 0 0 OK
Reframing 0 0 OK
AIS 0 0 OK
LOF 0 0 OK
LOS 0 0 OK
IDLE 0 0 OK
YELLOW 0 0 OK
BPV 0 0
EXZ 0 0
LCV 0 0
PCV 1 6827
CCV 0 0
LES 0
PES 1
PSES 1
CES 0
CSES 0
SEFS 0
UAS 0
HDLC configuration:
Policing bucket: Disabled
Shaping bucket : Disabled
Giant threshold: 4484, Runt threshold: 0
DSU configuration:
Compatibility mode: None, Scrambling: Disabled, Subrate: Disabled
FEAC loopback: Inactive, Response: Disabled, Count: 0
DS-3 BERT configuration:
BERT time period: 10 seconds, Elapsed: 0 seconds
Algorithm: 2^3 - 1, Pseudorandom (1), Induced error rate: 10e-0
SONET alarms : None
SONET defects : None
SONET path:
BIP-B3 0 0
REI-P 0 0
LOP-P 0 0 OK
AIS-P 0 0 OK
RDI-P 0 0 OK
UNEQ-P 0 0 OK
PLM-P 0 0 OK
ES-P 0
SES-P 0
UAS-P 0
ES-PFE 0
SES-PFE 0
UAS-PFE 0
Received SONET overhead:
C2 : 0x04, C2(cmp) : 0x04, F2 : 0x00, Z3 : 0x00
Z4 : 0x00, S1(cmp) : 0x00
Transmitted SONET overhead:
C2 : 0x04, F2 : 0x00, Z3 : 0x00, Z4 : 0x00
Received path trace:
5d 14 d6 ef 81 93 78 71 98 ec 55 27 35 84 3a 2c ].Vo..xq.lU'5.:,
Transmitted path trace: t3-4/2/0:2
74 33 2d 34 2f 32 2f 30 3a 32 00 00 00 00 00 00 t3-4/2/0:2......
Packet Forwarding Engine configuration:
Destination slot: 4, PLP byte: 4 (0x00)
CoS transmit queue Bandwidth Buffer Priority Limit
% bps % bytes
0 best-effort 95 42499200 95 0 low none
3 network-control 5 2236800 5 0 low none
Logical interface t3-4/2/0:2.0 (Index 10) (SNMP ifIndex 1983) (Generation 340)
Flags: Point-To-Point SNMP-Traps Encapsulation: PPP
Bandwidth: 0
Protocol inet, MTU: 4470, Generation: 347, Route table: 0
Flags: None
Addresses, Flags: Is-Preferred Is-Primary
Destination: 10.255.0.4/30, Local: 10.255.0.6, Broadcast: Unspecified, Generation: 685
user@RouterA> show interfaces
extensive ct3-4/2/0:4 Physical interface: ct3-4/2/0:4, Enabled, Physical link is Up
Interface index: 304, SNMP ifIndex: 2409, Generation: 639
Link-level type: Controller, MTU: 4474, Clocking: Internal, Speed: T3, Loopback: None, FCS: 16,
Mode: C/Bit parity, Parent: coc12-4/2/0 (Index 266)
Device flags : Present Running
Interface flags: Point-To-Point SNMP-Traps
Link flags : None
Hold-times : Up 0 ms, Down 0 ms
Last flapped : 2002-10-09 17:45:16 PDT (00:12:56 ago)
Statistics last cleared: Never
Traffic statistics:
Input bytes : 0 0 bps
Output bytes : 0 0 bps
Input packets: 0 0 pps
Output packets: 0 0 pps
Input errors:
Errors: 0, Drops: 0, Framing errors: 0, Bucket drops: 0, Policed discards: 0, L3 incompletes: 0,
L2 channel errors: 0, L2 mismatch timeouts: 0, HS link CRC errors: 0, SRAM errors: 0
Output errors:
Carrier transitions: 0, Errors: 0, Drops: 0, Aged packets: 0
Active alarms : None
Active defects : None
DS3 media: Seconds Count State
PLL Lock 0 0 OK
Reframing 0 0 OK
AIS 0 0 OK
LOF 0 0 OK
LOS 0 0 OK
IDLE 0 0 OK
YELLOW 0 0 OK
BPV 0 0
EXZ 0 0
LCV 0 0
PCV 1 1
CCV 1 1
LES 0
PES 1
PSES 0
CES 1
CSES 0
SEFS 0
UAS 0
HDLC configuration:
Policing bucket: Disabled
Shaping bucket : Disabled
Giant threshold: 0, Runt threshold: 0
DSU configuration:
Compatibility mode: None, Scrambling: Disabled, Subrate: Disabled
FEAC loopback: Inactive, Response: Disabled, Count: 0
DS-3 BERT configuration:
BERT time period: 10 seconds, Elapsed: 0 seconds
Algorithm: 2^3 - 1, Pseudorandom (1), Induced error rate: 10e-0
SONET alarms : None
SONET defects : None
SONET PHY: Seconds Count State
PLL Lock 0 0 OK
PHY Light 0 0 OK
SONET section:
BIP-B1 14 83
SEF 0 0 OK
LOS 0 0 OK
LOF 0 0 OK
ES-S 14
SES-S 0
SEFS-S 0
SONET line:
BIP-B2 14 162
REI-L 0 0
RDI-L 3 1 OK
AIS-L 0 0 OK
BERR-SF 0 0 OK
BERR-SD 0 0 OK
ES-L 14
SES-L 0
UAS-L 0
ES-LFE 3
SES-LFE 3
UAS-LFE 0
SONET path:
BIP-B3 0 0
REI-P 0 0
LOP-P 0 0 OK
AIS-P 0 0 OK
RDI-P 0 0 OK
UNEQ-P 0 0 OK
PLM-P 0 0 OK
ES-P 0
SES-P 0
UAS-P 0
ES-PFE 0
SES-PFE 0
UAS-PFE 0
Received SONET overhead:
F1 : 0x00, J0 : 0x00, K1 : 0x00, K2 : 0x00
S1 : 0x00, C2 : 0x04, C2(cmp) : 0x04, F2 : 0x00
Z3 : 0x00, Z4 : 0x00, S1(cmp) : 0x00
Transmitted SONET overhead:
F1 : 0x00, J0 : 0x00, K1 : 0x00, K2 : 0x00
S1 : 0x00, C2 : 0x04, F2 : 0x00, Z3 : 0x00
Z4 : 0x00
Received path trace:
39 b8 27 50 44 b6 5f c3 f3 de 27 9a a0 31 40 5c 98'PD6_Cs^'. 1@\
Transmitted path trace: RouterA ct3-4/2/0:4
74 69 6d 6d 65 73 73 71 75 61 72 65 20 63 74 33 RouterA ct3
Packet Forwarding Engine configuration:
Destination slot: 0 (0x00)
CoS transmit queue Bandwidth Buffer Priority Limit
% bps % bytes
0 best-effort 95 42499200 95 0 low none
3 network-control 5 2236800 5 0 low none
user@RouterA> show interfaces
extensive coc1-4/2/0:7 Physical interface: coc1-4/2/0:7, Enabled, Physical link is Up
Interface index: 381, SNMP ifIndex: 2524, Generation: 728
Link-level type: Controller, MTU: 4474, Clocking: Internal, SONET mode, Speed: 51840kbps, Loopback: None,
FCS: 16, Payload scrambler: Disabled, Parent: coc12-4/2/0 (Index 266)
Device flags : Present Running
Interface flags: Point-To-Point SNMP-Traps
Link flags : None
Hold-times : Up 0 ms, Down 0 ms
Last flapped : 2002-10-09 17:45:31 PDT (00:12:11 ago)
Statistics last cleared: Never
Traffic statistics:
Input bytes : 0 0 bps
Output bytes : 0 0 bps
Input packets: 0 0 pps
Output packets: 0 0 pps
Input errors:
Errors: 0, Drops: 0, Framing errors: 0, Runts: 0, Giants: 0, Bucket drops: 0, Policed discards: 0,
L3 incompletes: 0, L2 channel errors: 0, L2 mismatch timeouts: 0, HS link CRC errors: 0,
HS link FIFO overflows: 0
Output errors:
Carrier transitions: 0, Errors: 0, Drops: 0, Aged packets: 0, HS link FIFO underflows: 0
SONET alarms : None
SONET defects : None
SONET section:
BIP-B1 14 83
SEF 0 0 OK
LOS 0 0 OK
LOF 0 0 OK
ES-S 14
SES-S 0
SEFS-S 0
SONET line:
BIP-B2 14 162
REI-L 0 0
RDI-L 3 1 OK
AIS-L 0 0 OK
BERR-SF 0 0 OK
BERR-SD 0 0 OK
ES-L 14
SES-L 0
UAS-L 0
ES-LFE 3
SES-LFE 3
UAS-LFE 0
SONET path:
BIP-B3 0 0
REI-P 0 0
LOP-P 0 0 OK
AIS-P 0 0 OK
RDI-P 0 0 OK
UNEQ-P 3 1 OK
PLM-P 3 1 OK
ES-P 3
SES-P 3
UAS-P 0
ES-PFE 0
SES-PFE 0
UAS-PFE 0
Received SONET overhead:
F1 : 0x00, J0 : 0x00, K1 : 0x00, K2 : 0x00
S1 : 0x00, C2 : 0x00, C2(cmp) : 0x00, F2 : 0x00
Z3 : 0x00, Z4 : 0x00, S1(cmp) : 0x00
Transmitted SONET overhead:
F1 : 0x00, J0 : 0x01, K1 : 0x00, K2 : 0x00
S1 : 0x00, C2 : 0x00, F2 : 0x00, Z3 : 0x00
Z4 : 0x00
Received path trace:
a0 6a b2 b6 97 aa 25 5e 54 e3 59 2a 80 84 dd fa j26.*%^TcY*..]z
af ec 42 d3 21 45 5d 48 f4 5a dd e5 1c be e7 65 /lBS!E]HtZ]e.>ge
e7 f2 94 71 f1 d7 d7 86 98 83 d5 e2 ec 67 1d db gr.qqWW...Ublg.[
5b 72 29 b3 b9 97 98 c9 c1 a3 af e2 ab db d0 be [r)39..IA#/b+[P>
Transmitted path trace: RouterA coc1-4/2/0:7
74 69 6d 6d 65 73 73 71 75 61 72 65 20 63 6f 63 RouterA coc
31 2d 34 2f 32 2f 30 3a 37 00 00 00 00 00 00 00 1-4/2/0:7.......
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
HDLC configuration:
Policing bucket: Disabled
Shaping bucket : Disabled
Giant threshold: 0, Runt threshold: 0
Packet Forwarding Engine configuration:
Destination slot: 0 (0x00)
CoS transmit queue Bandwidth Buffer Priority Limit
% bps % bytes
0 best-effort 95 49248000 95 0 low none
3 network-control 5 2592000 5 0 low none
user@RouterA> show interfaces
extensive ct1-4/2/0:4:1 Physical interface: ct1-4/2/0:4:1, Enabled, Physical link is Up
Interface index: 305, SNMP ifIndex: 2410, Generation: 640
Link-level type: Controller, MTU: 1504, Clocking: Internal, Speed: T1, Loopback: None, FCS: 16,
Framing: ESF, Parent: ct3-4/2/0:4 (Index 304)
Device flags : Present Running
Interface flags: Point-To-Point SNMP-Traps
Link flags : None
Hold-times : Up 0 ms, Down 0 ms
Last flapped : 2002-10-09 17:45:19 PDT (00:16:49 ago)
Statistics last cleared: Never
Traffic statistics:
Input bytes : 0 0 bps
Output bytes : 0 0 bps
Input packets: 0 0 pps
Output packets: 0 0 pps
Input errors:
Errors: 0, Drops: 0, Framing errors: 0, Policed discards: 0,
L3 incompletes:0, L2 channel errors: 0,
L2 mismatch timeouts: 0, HS link CRC errors: 0, SRAM errors: 0
Output errors:
Carrier transitions: 0, Errors: 0, Drops: 0, Aged packets: 0
DS1 alarms : None
DS1 defects : None
T1 media: Seconds Count State
SEF 1 1 OK
BEE 1 1 OK
AIS 0 0 OK
LOF 1 1 OK
LOS 0 0 OK
YELLOW 0 0 OK
BPV 0 0
EXZ 0 0
LCV 0 0
PCV 0 0
CS 0 0
LES 1
ES 1
SES 2
SEFS 2
BES 0
UAS 0
HDLC configuration:
Policing bucket: Disabled
Shaping bucket : Disabled
Giant threshold: 0, Runt threshold: 0
Timeslots : All active
Line encoding: B8ZS, Byte encoding: Nx64K
Buildout : 0 to 132 feet
Data inversion: Disabled
DS1 BERT configuration:
BERT time period: 10 seconds, Elapsed: 0 seconds
Induced Error rate: 10e-0, Algorithm: 2^15 - 1, O.151, Pseudorandom (9)
Packet Forwarding Engine configuration:
Destination slot: 0 (0x00)
CoS transmit queue Bandwidth Buffer Priority Limit
% bps % bytes
0 best-effort 95 1459200 95 0 low none
3 network-control 5 76800 5 0 low none
user@RouterA> show interfaces
extensive t1-4/2/0:7:3 Physical interface: t1-4/2/0:7:3, Enabled, Physical link is Up
Interface index: 414, SNMP ifIndex: 2587, Generation: 761
Link-level type: PPP, MTU: 1504, Clocking: Internal, Speed: T1, Loopback: None, FCS: 16, Framing:ESF,
Parent: coc1-4/2/0:7 (Index 381)
Device flags : Present Running
Interface flags: Point-To-Point SNMP-Traps
Link flags : Keepalives
Hold-times : Up 0 ms, Down 0 ms
Keepalive settings: Interval 10 seconds, Up-count 1, Down-count 3
Keepalive statistics:
Input : 0 (last seen: never)
Output: 0 (last sent: never)
LCP state: Conf-ack-sent
NCP state: inet: Down, inet6: Not-configured, iso: Not-configured, mpls: Not-configured
CHAP state: Not-configured
Last flapped : 2002-10-09 17:45:34 PDT (00:10:33 ago)
Statistics last cleared: Never
Traffic statistics:
Input bytes : 10778 112 bps
Output bytes : 11412 128 bps
Input packets: 634 0 pps
Output packets: 634 0 pps
Input errors:
Errors: 0, Drops: 0, Framing errors: 0, Policed discards: 0,
L3 incompletes: 0, L2 channel errors: 0,
L2 mismatch timeouts: 0, HS link CRC errors: 0, SRAM errors: 0
Output errors:
Carrier transitions: 1, Errors: 0, Drops: 0, Aged packets: 0
Queue counters: Queued packets Transmitted packets Dropped packets
0 best-effort 633 633 0
1 expedited-fo 0 0 0
2 assured-forw 0 0 0
3 network-cont 0 0 0
DS1 alarms : None
DS1 defects : None
T1 media: Seconds Count State
SEF 1 1 OK
BEE 1 1 OK
AIS 3 1 OK
LOF 17 1 OK
LOS 0 0 OK
YELLOW 0 0 OK
BPV 0 0
EXZ 0 0
LCV 0 0
PCV 0 0
CS 0 0
LES 17
ES 17
SES 34
SEFS 34
BES 0
UAS 14
HDLC configuration:
Policing bucket: Disabled
Shaping bucket : Disabled
Giant threshold: 1514, Runt threshold: 0
Timeslots : All active
Line encoding: B8ZS, Byte encoding: Nx64K
Buildout : 0 to 132 feet
Data inversion: Disabled
DS1 BERT configuration:
BERT time period: 10 seconds, Elapsed: 0 seconds
Induced Error rate: 10e-0, Algorithm: 2^15 - 1, O.151, Pseudorandom (9)
SONET alarms : None
SONET defects : None
SONET vt:
BIP-BIP2 648 0
REI-V 651 1
LOP-V 0 0 OK
AIS-V 0 0 OK
RDI-V 651 1 Defect Active
UNEQ-V 0 0 OK
PLM-V 0 0 OK
ES-V 651
SES-V 3
UAS-V 0
ES-VFE 0
SES-VFE 0
UAS-VFE 0
Received SONET overhead:
V5 : 0x02, V5(cmp) : 0x02
Transmitted SONET overhead:
V5 : 0x02
Packet Forwarding Engine configuration:
Destination slot: 4, PLP byte: 4 (0x24)
CoS transmit queue Bandwidth Buffer Priority Limit
% bps % bytes
0 best-effort 95 1459200 95 0 low none
3 network-control 5 76800 5 0 low none
Logical interface t1-4/2/0:7:3.0 (Index 152) (SNMP ifIndex 2588)
(Generation 484)
Flags: Hardware-Down Point-To-Point SNMP-Traps Encapsulation: PPP
Bandwidth: 0
Protocol inet, MTU: 1500, Generation: 491, Route table: 0
Flags: Protocol-Down
Addresses, Flags: Dest-route-down Is-Preferred Is-Primary
Destination: 10.255.2.68/30, Local: 10.255.2.70, Broadcast: Unspecified, Generation: 973
user@RouterA> show interfaces
extensive ds-4/2/0:4:1:1 Physical interface: ds-4/2/0:4:1:1, Enabled, Physical link is Up
Interface index: 306, SNMP ifIndex: 2411, Generation: 641
Link-level type: PPP, MTU: 1504, Clocking: Internal, Speed: 64kbps, Loopback: None, FCS: 16,
Parent: ct1-4/2/0:4:1 (Index 305)
Device flags : Present Running
Interface flags: Point-To-Point SNMP-Traps
Link flags : Keepalives
Hold-times : Up 0 ms, Down 0 ms
Keepalive settings: Interval 10 seconds, Up-count 1, Down-count 3
Keepalive statistics:
Input : 98 (last seen 00:00:01 ago)
Output: 100 (last sent 00:00:00 ago)
LCP state: Opened
NCP state: inet: Opened, inet6: Not-configured, iso: Not-configured, mpls: Not-configured
CHAP state: Not-configured
Last flapped : 2002-10-09 17:45:15 PDT (00:16:20 ago)
Statistics last cleared: Never
Traffic statistics:
Input bytes : 3013 0 bps
Output bytes : 3228 0 bps
Input packets: 201 0 pps
Output packets: 202 0 pps
Input errors:
Errors: 0, Drops: 0, Framing errors: 0, Policed discards: 0,
L3 incompletes: 0, L2 channel errors: 0,
L2 mismatch timeouts: 0, HS link CRC errors: 0
Output errors:
Carrier transitions: 1, Errors: 0, Drops: 0, Aged packets: 0
Queue counters: Queued packets Transmitted packets Dropped packets
0 best-effort 202 202 0
1 expedited-fo 0 0 0
2 assured-forw 0 0 0
3 network-cont 0 0 0
Interface transmit queues:
B/W WRR Packets Bytes Drops Errors
Queue0 0 0 0 0 0 0
Queue1 0 0 0 0 0 0
HDLC configuration:
Giant threshold: 0, Runt threshold: 0
Timeslots : 1
Byte encoding: Nx64K, Data inversion: Disabled
Idle cycle flag: flags, Start end flag: shared
Packet Forwarding Engine configuration:
Destination slot: 4, PLP byte: 4 (0x07)
CoS transmit queue Bandwidth Buffer Priority Limit
% bps % bytes
0 best-effort 95 60800 95 0 low none
3 network-control 5 3200 5 0 low none
Logical interface ds-4/2/0:4:1:1.0 (Index 39) (SNMP ifIndex 2412)
(Generation 369)
Flags: Point-To-Point SNMP-Traps Encapsulation: PPP
Bandwidth: 0
Protocol inet, MTU: 1500, Generation: 376, Route table: 0
Flags: None
Addresses, Flags: Is-Preferred Is-Primary
Destination: 10.255.0.120/30, Local: 10.255.0.122, Broadcast: Unspecified, Generation: 743
The JUNOS software allows you to convert a Channelized OC12 IQ PIC into a channelized STM4 IQ interface. The conversion process enables the Channelized OC12 IQ PIC to interconnect with European SDH telecommunications equipment at the STM4 and STM1 levels, then channelize the data into North American T3, T1, and NxDS0 interfaces. To place the Channelized OC12 IQ PIC in SDH mode, include the sdh option at the [edit chassis fpc slot-number pic pic-number framing] hierarchy level.
Figure 3: Channelized OC12 IQ Interface in SDH Mode Example

Figure 3 and the following configuration example show how the converted channelized STM4 IQ interface can be turned into a clear channel STM4 (VC4-4c) SDH interface, or further subdivided into STM1 (VC4) interfaces and channelized administrative unit 4 (CAU4) interfaces, T3 and channelized T3 interfaces, T1 and channelized T1 interfaces, and NxDS0 channels.
Router A
- [edit]
- chassis {
-
- fpc 0 {
-
- pic 0 {
- framing sdh;# Converts the Channelized
OC12 IQ PIC
- }
# into a channelized STM4 SDH interface.
- }
- }
- interfaces {
-
- cstm4-0/0/0 {
- partition 1 oc-slice 1-3 interface-type so; # Creates an STM1 SDH interface.
- partition 2 oc-slice 4-6 interface-type cau4; # Partitions 2, 3, and 4 create
- partition 3 oc-slice 7-9 interface-type cau4; # three channelized AU4 channels.
- partition 4 oc-slice 10-12 interface-type
cau4;
- }
-
- so-0/0/0:1 { # A clear channel
STM1 SDH (VC4) interface.
- encapsulation frame-relay;
-
- unit 0 {
- dlci 16;
-
- family inet {
- address 10.0.0.1/30;
- }
-
- family inet6 {
- address abcd::10.0.0.1/126;
- }
- }
- }
-
- cau4-0/0/0:2 {
- partition 1 interface-type t3; # Creates a T3 interface from the
- } #
channelized AU4 interface.
-
- t3-0/0/0:2:1 {
- encapsulation frame-relay;
-
- unit 0 {
- dlci 16;
-
- family inet {
- address 10.0.0.5/30;
- }
-
- family inet6 {
- address abcd::10.0.0.5/126;
- }
- }
- }
-
- cau4-0/0/0:3 {
- partition 1 interface-type ct3; # Creates channelized T3 interfaces from the
- partition 2 interface-type ct3; # second channelized AU4.
- }
-
- ct3-0/0/0:3:1 {
- partition 1 interface-type t1; # Creates a T1 interface from the channelized T3.
- }
-
- t1-0/0/0:3:1:1 {
- encapsulation frame-relay;
-
- unit 0 {
- dlci 16;
-
- family inet {
- address 10.0.0.9/30;
- }
-
- family inet6 {
- address abcd::10.0.0.9/126;
- }
- }
- }
-
- ct3-0/0/0:3:2 {
- partition 1 interface-type ct1; # Creates a channelized T1 interface
- } #
from the channelized T3.
-
- ct1-0/0/0:3:2:1 {
- partition 1 timeslots 1,3-7,24 interface-type
ds; # Creates an NxDS0 channel
- } #
group with seven time slots.
-
- ds-0/0/0:3:2:1:1 {
- encapsulation frame-relay;
-
- unit 0 {
- dlci 16;
-
- family inet {
- address 10.0.0.13/30;
- }
-
- family inet6 {
- address abcd::10.0.0.13/126;
- }
- }
- }
-
- cau4-0/0/0:4 {
- partition 2 interface-type t3; # Creates a T3 interface.
- partition 1 interface-type ct3; # Creates a channelized T3 interface
- } #
from the channelized AU4.
-
- ct3-0/0/0:4:1 {
- partition 1 interface-type t1; # Creates a T1 interface.
- partition 2 interface-type ct1; # Creates a channelized T1 interface
- } #
from the channelized T3.
-
- t1-0/0/0:4:1:1 {
- encapsulation frame-relay;
-
- unit 0 {
- dlci 16;
-
- family inet {
- address 10.0.0.21/30;
- }
-
- family inet6 {
- address abcd::10.0.0.21/126;
- }
- }
- }
-
- ct1-0/0/0:4:1:2 {
- partition 1 timeslots 6,8-11,7 interface-type
ds; # Creates an NxDS0 channel
- } #
group with six time slots.
-
- ds-0/0/0:4:1:2:1 {
- encapsulation frame-relay;
-
- unit 0 {
- dlci 16;
-
- family inet {
- address 10.0.0.25/30;
- }
-
- family inet6 {
- address abcd::10.0.0.25/126;
- }
- }
- }
-
- t3-0/0/0:4:2 {
- encapsulation frame-relay;
-
- unit 0 {
- dlci 16;
-
- family inet {
- address 10.0.0.17/30;
- }
-
- family inet6 {
- address abcd::10.0.0.17/126;
- }
- }
- }
-
- cstm4-0/1/0 {
- no-partition interface-type so; # Creates a clear channel SDH STM4 interface.
- }
-
- so-0/1/0 { # This is the clear
channel SDH STM4 (VC4-4c) interface so-0/1/0.
-
- unit 0 {
-
- family inet {
- address 10.22.22.1/30;
- }
- }
- }
- }
Figure 4 shows a visual representation of the T3/channelized T3-to-STM4 SDH mapping method used by the JUNOS software for channelized OC12 IQ interfaces configured in SDH mode.
Figure 4: Converted Channelized OC12 IQ Interface SDH Mapping Method

To verify correct operation of a Channelized OC12 IQ PIC converted to a channelized STM4 IQ interface, use the following commands:
To view the interface names of the physical channelized STM4 IQ interface and the resulting interfaces configured on the channelized IQ interface, use the show interfaces controller and show interfaces terse commands:
user@host> show interfaces controller
cstm4-0/0/0Controller Admin Link
cstm4-0/0/0 up up
so-0/0/0:1 up up
cau4-0/0/0:2 up up
t3-0/0/0:2:1 up up
cau4-0/0/0:3 up up
ct3-0/0/0:3:1 up up
t1-0/0/0:3:1:1 up up
ct3-0/0/0:3:2 up up
ct1-0/0/0:3:2:1 up up
ds-0/0/0:3:2:1:1 up up
cau4-0/0/0:4 up up
ct3-0/0/0:4:1 up up
t1-0/0/0:4:1:1 up up
ct1-0/0/0:4:1:2 up up
ds-0/0/0:4:1:2:1 up up
t3-0/0/0:4:2 up up
user@host> show interfaces terse *-0/0/0* Interface Admin Link Proto Local Remote
cstm4-0/0/0 up up
so-0/0/0:1 up up
so-0/0/0:1.0 up up inet 10.0.0.1/30
inet6 abcd::a00:1/126
fe80::2a0:a5ff:fe5c:15a6/64
cau4-0/0/0:2 up up
t3-0/0/0:2:1 up up
t3-0/0/0:2:1.0 up up inet 10.0.0.5/30
inet6 abcd::a00:5/126
fe80::2a0:a5ff:fe5c:15a6/64
cau4-0/0/0:3 up up
ct3-0/0/0:3:1 up up
t1-0/0/0:3:1:1 up up
t1-0/0/0:3:1:1.0 up up inet 10.0.0.9/30
inet6 abcd::a00:9/126
fe80::2a0:a5ff:fe5c:15a6/64
ct3-0/0/0:3:2 up up
ct1-0/0/0:3:2:1 up up
ds-0/0/0:3:2:1:1 up up
ds-0/0/0:3:2:1:1.0 up up inet 10.0.0.13/30
inet6 abcd::a00:d/126
fe80::2a0:a5ff:fe5c:15a6/64
cau4-0/0/0:4 up up
ct3-0/0/0:4:1 up up
t1-0/0/0:4:1:1 up up
t1-0/0/0:4:1:1.0 up up inet 10.0.0.21/30
inet6 abcd::a00:15/126
fe80::2a0:a5ff:fe5c:15a6/64
ct1-0/0/0:4:1:2 up up
ds-0/0/0:4:1:2:1 up up
ds-0/0/0:4:1:2:1.0 up up inet 10.0.0.25/30
inet6 abcd::a00:19/126
fe80::2a0:a5ff:fe5c:15a6/64
t3-0/0/0:4:2 up up
t3-0/0/0:4:2.0 up up inet 10.0.0.17/30
inet6 abcd::a00:11/126
fe80::2a0:a5ff:fe5c:15a6/64
Figure 5: Channelized OC3 IQ Interface Example

Figure 5 shows a sample channelization structure for a channelized OC3 IQ interface. Top-level partitions 1, 2, and 3 create channelized OC1 interfaces. The first channelized OC1 interface, coc1-0/0/0:1, is converted directly into the T3 interface t3-0/0/0:1. The second channelized OC1 interface, coc1-0/0/0:2, is partitioned into a T1 interface and a channelized T1 interface. The channelized T1 interface, t1-0/0/0:2:2, is then further subdivided into two NxDS0 channel groups: ds-0/0/0:2:2:1 and ds-0/0/0:2:2:2.
The remaining channelized OC1 interface, coc1-0/0/0:3, is converted to a channelized T3 interface, then to a channelized T1 interface, and ultimately to 14 individual NxDS0 channels and a channel group containing 10 NxDS0 channels. Additionally, channelized OC3 IQ interface coc3-0/1/0 uses the no-partition statement at the [edit interface interface-name] hierarchy level to create a clear channel SONET OC3 interface so-0/1/0. This example shows two NxDS0 mapping methods. Partition 2:x:x uses VT mapping for SONET/SDH equipment, while partition 3:x:x uses M13 mapping for North American T-carrier equipment.
This example also assumes corresponding interfaces. For example, for every sublevel T1 interface you configure on Router A, assume you have configured a matching sublevel or physical T1 interface on a neighboring router.
Router A
- [edit]
- interfaces {
-
- coc3-0/0/0 {
- partition 1 oc-slice 1 interface-type coc1; # Creates three channelized OC1
- partition 2 oc-slice 2 interface-type coc1; # interfaces: coc1-0/0/0:1 through
- partition 3 oc-slice 3 interface-type coc1; # coc1-0/0/0:3.
- }
-
- coc1-0/0/0:1 {
- no-partition interface-type t3; # This converts the COC1 interface into
- } #
T3 interface t3-0/0/0:1.
-
- t3-0/0/0:1 {
- no-keepalives;
- encapsulation cisco-hdlc;
-
- t3-options {
- fcs 32;
- feac-loop-respond;
- }
-
- unit 0 {
-
- family inet {
- address 10.21.21.2/30;
- }
- }
- }
-
- coc1-0/0/0:2 {
- partition 1 interface-type t1; # Creates the T1 interface t1-0/0/0:2:1.
- partition 2 interface-type ct1; # Creates the channelized T1 interface
- } #
ct1-0/0/0:2:2.
-
- t1-0/0/0:2:1 {
- no-keepalives;
- encapsulation cisco-hdlc;
-
- t1-options {
- fcs 32;
- }
-
- unit 0 {
-
- family inet {
- address 10.12.12.2/30;
- }
- }
- }
-
- ct1-0/0/0:2:2 {
- partition 1 timeslots 1-10 interface-type
ds; # This converts the channelized T1
- partition 2 timeslots 11-24 interface-type
ds; # interface into two channel
- } #
groups: ds-0/0/0:2:2:1 and ds-0/0/0:2:2:2.
-
- ds-0/0/0:2:2:1 { # This is a channel group with 10 NxDS0s bundled as one.
- no-keepalives;
- encapsulation cisco-hdlc;
-
- unit 0 {
-
- family inet {
- address 10.13.13.2/30;
- }
- }
- }
-
- ds-0/0/0:2:2:2 { # This is a
channel group with 14 NxDS0s bundled as one.
- encapsulation frame-relay;
-
- unit 0 {
- dlci 10;
-
- family inet {
- address 10.14.14.2/30;
- }
- }
- }
-
- coc1-0/0/0:3 {
- partition 1 interface-type ct3; # Creates the channelized T3 interface
- } #
ct3-0/0/0:3.
-
- ct1-0/0/0:3:1 {
- partition 1 timeslots 1-10 interface-type
ds; # Creates a channel group.
- partition 2 timeslots 11
interface-type ds; # Creates single NxDS0 channels.
- partition 3 timeslots 12 interface-type ds;
- partition 4 timeslots 13 interface-type ds;
- partition 5 timeslots 14 interface-type ds;
- partition 6 timeslots 15 interface-type ds;
- partition 7 timeslots 16 interface-type ds;
- partition 8 timeslots 17 interface-type ds;
- partition 9 timeslots 18 interface-type ds;
- partition 10 timeslots 19 interface-type ds;
- partition 11 timeslots 20 interface-type ds;
- partition 12 timeslots 21 interface-type ds;
- partition 13 timeslots 22 interface-type ds;
- partition 14 timeslots 23 interface-type ds;
- partition 15 timeslots 24 interface-type ds;
- }
-
- ds-0/0/0:3:1:1 { # This is a
channel group with 10 NxDS0s bundled as one.
- no-keepalives;
- encapsulation cisco-hdlc;
-
- unit 0 {
-
- family inet {
- address 10.31.31.2/30;
- }
- }
- }
-
- ds-0/0/0:3:1:2 { # ds-0/0/0:3:1:2 through :15 are single NxDS0s channels.
- encapsulation frame-relay;
-
- unit 0 {
- dlci 10;
-
- family inet {
- address 10.32.32.2/30;
- }
- }
- }
- # Assume ds-0/0/0:3:1:3 through :14 are configured here.
-
- ds-0/0/0:3:1:15 { # ds-0/0/0:3:1:2 through :15 are single
NxDS0s channels.
- encapsulation frame-relay;
-
- unit 0 {
- dlci 10;
-
- family inet {
- address 10.45.45.2/30;
- }
- }
- }
-
- coc3-0/1/0 {
- no-partition interface-type so; # Creates a clear channel SONET OC3 interface.
- }
-
- so-0/1/0 { # This is the clear
channel SONET OC3 interface so-0/1/0.
- dce;
- encapsulation frame-relay;
-
- unit 1 {
- dlci 11;
-
- family inet {
- address 10.22.22.1/30;
- }
- }
- }
- }
To verify correct operation of a channelized OC3 IQ interface, use the following commands:
To view the interface names of the physical channelized OC3 IQ interface and the resulting interfaces configured on the channelized IQ interface, use the show interfaces controller command:
user@host> show interfaces controller
coc3-0/0/0Controller Admin Link
coc3-0/0/0 up up
coc1-0/0/0:1 up up
t3-0/0/0:1 up up
coc1-0/0/0:2 up up
t1-0/0/0:2:1 up up
ct1-0/0/0:2:2 up up
ds-0/0/0:2:2:1 up up
ds-0/0/0:2:2:2 up up
coc1-0/0/0:3 up up
ct3-0/0/0:3 up up
ct1-0/0/0:3:1 up up
ds-0/0/0:3:1:1 up up
ds-0/0/0:3:1:2 up up
ds-0/0/0:3:1:3 up up
ds-0/0/0:3:1:4 up up
ds-0/0/0:3:1:5 up up
ds-0/0/0:3:1:6 up up
ds-0/0/0:3:1:7 up up
ds-0/0/0:3:1:8 up up
ds-0/0/0:3:1:9 up up
ds-0/0/0:3:1:10 up up
ds-0/0/0:3:1:11 up up
ds-0/0/0:3:1:12 up up
ds-0/0/0:3:1:13 up up
ds-0/0/0:3:1:14 up up
ds-0/0/0:3:1:15 up up
To verify that your channelized IQ interfaces are working as expected, use the show interfaces command. Use the show interfaces controller command to find the name of the channelized interface you want to view; then include this channelized name (for example, ct3-0/0/0:3) as an option with the show interfaces command.
The next section provides sample show interfaces output for each of the major interface types configured in this example:
user@host> show interfaces coc3-0/0/0Physical interface: coc3-0/0/0, Enabled, Physical link is Up Interface index: 128, SNMP ifIndex: 1954 Link-level type: Controller, Clocking: Internal, SONET mode, Speed: OC3, Loopback: None, Parent: None Device flags : Present Running Interface flags: Point-To-Point SNMP-Traps 16384 Link flags : None CoS queues : 4 supported Last flapped : 2005-02-15 20:35:24 PST (22:10:54 ago) SONET alarms : None SONET defects : None
user@host> show interfaces coc1-0/0/0:1 Physical interface: coc1-0/0/0:1, Enabled, Physical link is Up Interface index: 226, SNMP ifIndex: 1957 Link-level type: Controller, Clocking: Internal, SONET mode, Speed: 51840kbps, Loopback: None, Parent: coc3-0/0/0 Interface index 138 Device flags : Present Running Interface flags: Point-To-Point SNMP-Traps 16384 Link flags : None CoS queues : 4 supported Last flapped : 2004-11-04 10:55:50 PST (05:38:36 ago) SONET alarms : None SONET defects : None
user@host> show interfaces t3-0/0/0:1 Physical interface: t3-0/0/0:1, Enabled, Physical link is Up
Interface index: 227, SNMP ifIndex: 43
Link-level type: Cisco-HDLC, MTU: 4474, Clocking: Internal, Speed: T3, Loopback: None, FCS: 16, Mode: C/Bit parity,
Parent: coc1-0/0/0:1 Interface index 226
Device flags : Present Running
Interface flags: Point-To-Point SNMP-Traps 16384
Link flags : No-Keepalives
CoS queues : 4 supported
Last flapped : Never
Input rate : 0 bps (0 pps)
Output rate : 0 bps (0 pps)
Active alarms : None
Active defects : None
DS3 BERT configuration:
BERT time period: 10 seconds, Elapsed: 0 seconds
Algorithm: 2^15 - 1, O.151, Pseudorandom (9), Induced error rate: 10e-0
Logical interface t3-0/0/0:1.0 (Index 69) (SNMP ifIndex 1960)
Flags: Point-To-Point SNMP-Traps Encapsulation: Cisco-HDLC
Protocol inet, MTU: 4470
Flags: None
Addresses, Flags: Is-Preferred Is-Primary
Destination: 10.21.21.0/30, Local: 10.21.21.2, Broadcast: 10.21.21.3
user@host> show interfaces ct3-0/0/0:3 Physical interface: ct3-0/0/0:3, Enabled, Physical link is Up
Interface index: 234, SNMP ifIndex: 2218
Link-level type: Controller, Clocking: Internal, Speed: T3, Loopback: None, Mode: C/Bit parity,
Parent: coc1-0/0/0:3 Interface index 233
Device flags : Present Running
Interface flags: Point-To-Point SNMP-Traps 16384
Link flags : None
CoS queues : 4 supported
Last flapped : Never
Active alarms : None
Active defects : None
DS3 BERT configuration:
BERT time period: 10 seconds, Elapsed: 0 seconds
Algorithm: 2^15 - 1, O.151, Pseudorandom (9), Induced error rate: 10e-0
user@host> show interfaces t1-0/0/0:2:1 Physical interface: t1-0/0/0:2:1, Enabled, Physical link is Up Interface index: 229, SNMP ifIndex: 2091 Link-level type: Cisco-HDLC, MTU: 1504, Clocking: Internal, Speed: T1,
Loopback: None, FCS: 32, Framing: ESF, Parent: coc1-0/0/0:2 Interface index 228 Device flags : Present Running Interface flags: Point-To-Point SNMP-Traps 16384 Link flags : No-Keepalives CoS queues : 4 supported Last flapped : Never Input rate : 0 bps (0 pps) Output rate : 0 bps (0 pps) DS1 alarms : None DS1 defects : None SONET alarms : None SONET defects : None Logical interface t1-0/0/0:2:1.0 (Index 70) (SNMP ifIndex 2092) Flags: Point-To-Point SNMP-Traps Encapsulation: Cisco-HDLC Protocol inet, MTU: 1500 Flags: None Addresses, Flags: Is-Preferred Is-Primary Destination: 10.12.12.0/30, Local: 10.12.12.2, Broadcast: 10.12.12.3
user@host> show interfaces ct1-0/0/0:2:2 Physical interface: ct1-0/0/0:2:2, Enabled, Physical link is Up Interface index: 230, SNMP ifIndex: 13985 Link-level type: Controller, Clocking: Internal, Speed: T1, Loopback: None, Framing: ESF, Parent: coc1-0/0/0:2 Interface index 228 Device flags : Present Running Interface flags: Point-To-Point SNMP-Traps 16384 Link flags : None CoS queues : 4 supported Last flapped : Never DS1 alarms : None DS1 defects : None SONET alarms : None SONET defects : None
user@host> show interfaces ds-0/0/0:2:2:1 Physical interface: ds-0/0/0:2:2:1, Enabled, Physical link is Up
Interface index: 231, SNMP ifIndex: 14016
Link-level type: Cisco-HDLC, MTU: 1504, Clocking: Internal, Speed: 640kbps, Loopback: None, FCS: 16,
Parent: ct1-0/0/0:2:2 Interface index 230
Device flags : Present Running
Interface flags: Point-To-Point SNMP-Traps 16384
Link flags : No-Keepalives
CoS queues : 4 supported
Last flapped : Never
Input rate : 0 bps (0 pps)
Output rate : 0 bps (0 pps)
DS0 BERT configuration:
BERT time period: 10 seconds, Elapsed: 0 seconds
Induced Error rate: 10e-0, Algorithm: 2^15 - 1, O.151, Pseudorandom (9)
Logical interface ds-0/0/0:2:2:1.0 (Index 71) (SNMP ifIndex 20889)
Flags: Point-To-Point SNMP-Traps Encapsulation: Cisco-HDLC
Protocol inet, MTU: 1500
Flags: None
Addresses, Flags: Is-Preferred Is-Primary
Destination: 10.13.13.0/30, Local: 10.13.13.2, Broadcast: 10.13.13.3
user@host> show interfaces so-0/1/0 Physical interface: so-0/1/0, Enabled, Physical link is Down
Interface index: 128, SNMP ifIndex: 15684
Link-level type: Cisco-HDLC, MTU: 4474, Clocking: Internal, SONET mode, Speed: OC3, Loopback: None, FCS: 16,
Payload scrambler: Enabled
Parent: coc3-0/1/0 Interface index 142
Device flags : Present Running Down
Interface flags: Hardware-Down Point-To-Point SNMP-Traps 16384
Link flags : Keepalives
CoS queues : 4 supported
Last flapped : 2004-11-04 10:53:54 PST (05:51:04 ago)
Input rate : 0 bps (0 pps)
Output rate : 0 bps (0 pps)
SONET alarms : PLM-P
SONET defects : PLM-P
Logical interface so-0/1/0.0 (Index 67) (SNMP ifIndex 15686)
Flags: Device-Down Point-To-Point SNMP-Traps Encapsulation: Cisco-HDLC
Protocol inet, MTU: 4470
Flags: None
Addresses, Flags: Dest-route-down Is-Preferred Is-Primary
Destination: 10.22.22.0/30, Local: 10.22.22.1, Broadcast: 10.22.22.3
Figure 6: Channelized DS3 IQ Interface Example

This example shows how to configure a channelized DS3 IQ interface. Figure 6 shows the breakdown of a DS3 interface into a variety of channels. The path that leads to NxDS0 channels is similar to the M13 with C-bit parity method seen previously in the complex OC12 configuration example (see Example: Complex Configuration for a Channelized OC12 IQ Interface). This method breaks the channelized DS3 IQ interface into channelized T1s before additional splits create DS0 time slots.
To create T1 channels, include the partition statement at the [edit interfaces ct3-fpc/pic/port] hierarchy level with the interface-type t1 option. To create channelized T1 channels, include the partition statement at the [edit interfaces ct3-fpc/pic/port] hierarchy level with the interface-type ct1 option.
After you have established a channelized T1 channel, you can split it into a maximum of 24 NxDS0 channels. To configure NxDS0 channels, include the partition statement at the [edit interfaces ct1-fpc/pic/port:channel] hierarchy level with the timeslots and interface-type ds options to create the desired number of NxDS0 channels or channel groups.
Although it is not part of the example shown, you can also create a clear channel T3 or a fractional T3 interface on a channelized DS3 IQ interface. To configure a clear channel T3 or fractional T3 interface, include the no-partition statement at the [edit interfaces ct3-fpc/pic /port] hierarchy level. After you commit this part of the configuration, a clear channel T3 interface is established. You can configure standard T3 options on this interface. To fractionalize the T3 interface, include the timeslots statement at the [edit interfaces t3-fpc/pic/port t3-options] hierarchy level.
Router A
- [edit]
- interfaces {
-
- ct3-0/0/1 { # This is the controller level for the channelized
DS3 IQ interface.
- partition 1 interface-type t1; # This creates the t1-0/0/1:1
channel.
- partition 2 interface-type ct1; # This creates the ct1-0/0/1:2
channel.
- partition 3-10 interface-type t1; # This creates channels
t1-0/0/1:3 through :10.
- partition 11-28 interface-type ct1; # This creates channels
ct1-0/0/1:11 to :28.
- }
-
- t1-0/0/1:1 {
- ...
- }
-
- ct1-0/0/1:2 {
- partition 1 timeslots 1-10 interface-type ds; # These statements
create
- partition 2 timeslots 11-20 interface-type ds; # three
channel groups.
- partition 3 timeslots 21-24 interface-type ds;
- }
-
- ds-0/0/1:2:1 { # This channel group contains 10 NxDS0s.
-
- unit 0 {
-
- family inet {
- address 10.25.1.2/24;
- }
- }
- }
-
- ds-0/0/1:2:2 { # This channel group contains 10 NxDS0s.
-
- unit 0 {
-
- family inet {
- address 10.25.2.2/24;
- }
- }
- }
-
- ds-0/0/1:2:3 { # This channel group contains 4 NxDS0s.
-
- unit 0 {
-
- family inet {
- address 10.25.3.2/24;
- }
- }
- }
-
- t1-0/0/1:3 {
- ...
- }
-
- t1-0/0/1:10 {
- ...
- }
-
- ct1-0/0/1:11 {
- ...
- }
-
- ct1-0/0/1:28 {
- ...
- }
- }
To verify correct operation of a channelized DS3 IQ interface, use the following commands:
To view the interface names of the physical channelized DS3 IQ interface and the channels configured on this interface, use the show interfaces controller command:
user@RouterA> show interfaces controller
ct3-0/0/1 Controller Admin Link
ct3-0/0/1 up up
# This is the physical channelized DS3 (channelized T3) IQ interface.
t1-0/0/1:1 up up
# Channel 1 is a channelized T1 interface.
ct1-0/0/1:2 up up
ds-0/0/1:2:1 up up
ds-0/0/1:2:2 up up
ds-0/0/1:2:3 up up
t1-0/0/1:3 up down
t1-0/0/1:4 up up
t1-0/0/1:5 up up
t1-0/0/1:6 up up
t1-0/0/1:7 up up
t1-0/0/1:8 up up
t1-0/0/1:9 up up
t1-0/0/1:10 up up
# Channels 3 through 10 are T1 interfaces.
ct1-0/0/1:11 up up
ct1-0/0/1:12 up up
ct1-0/0/1:13 up up
ct1-0/0/1:14 up up
ct1-0/0/1:15 up up
ct1-0/0/1:16 up up
ct1-0/0/1:17 up up
ct1-0/0/1:18 up up
ct1-0/0/1:19 up up
ct1-0/0/1:20 up up
ct1-0/0/1:21 up up
ct1-0/0/1:22 up up
ct1-0/0/1:23 up up
ct1-0/0/1:24 up up
ct1-0/0/1:25 up up
ct1-0/0/1:26 up up
ct1-0/0/1:27 up up
ct1-0/0/1:28 up up
# Channels 11 through 28 are channelized T1 interfaces.
To view information about the physical channelized interface, include the ct3-fpc/pic/port option with the show interfaces command:
user@RouterA> show interfaces extensive
ct3-0/0/1 Physical interface: ct3-0/0/1, Enabled, Physical link is Up
Interface index: 30, SNMP ifIndex: 317, Generation: 29
Link-level type: Controller, MTU: 4474, Clocking: Internal, Speed: T3,
Loopback: None, FCS: 16, Mode: C/Bit parity, Parent: None
Device flags : Present Running
Interface flags: Point-To-Point SNMP-Traps
Link flags : None
Hold-times : Up 0 ms, Down 0 ms
Last flapped : 2002-10-04 10:24:18 PDT (01:40:40 ago)
Statistics last cleared: 2002-10-04 11:47:27 PDT (00:17:31 ago)
Traffic statistics:
Input bytes : 0 0 bps
Output bytes : 0 0 bps
Input packets: 0 0 pps
Output packets: 0 0 pps
Input errors:
Errors: 0, Drops: 0, Framing errors: 0, Bucket drops: 0,
Policed discards: 0, L3 incompletes: 0, L2 channel errors: 0,
L2 mismatch timeouts: 0, HS link CRC errors: 0, SRAM errors: 0
Output errors:
Carrier transitions: 0, Errors: 0, Drops: 0, Aged packets: 0
Active alarms : None
Active defects : None
DS3 media: Seconds Count State
PLL Lock 0 0 OK
Reframing 0 0 OK
AIS 0 0 OK
LOF 0 0 OK
LOS 0 0 OK
IDLE 0 0 OK
YELLOW 0 0 OK
BPV 0 0
EXZ 0 0
LCV 0 0
PCV 0 0
CCV 0 0
LES 0
PES 0
PSES 0
CES 0
CSES 0
SEFS 0
HDLC configuration:
Policing bucket: Disabled
Shaping bucket : Disabled
Giant threshold: 0, Runt threshold: 0
DSU configuration:
Compatibility mode: None, Scrambling: Disabled, Subrate: Disabled
FEAC loopback: Inactive, Response: Disabled, Count: 0
DS-3 BERT configuration:
BERT time period: 10 seconds, Elapsed: 0 seconds
Algorithm: 2^3 - 1, Pseudorandom (1), Induced error rate: 10e-0
Packet Forwarding Engine configuration:
Destination slot: 0 (0x00)
CoS transmit queue Bandwidth Buffer Priority Limit
% bps % bytes
0 best-effort 95 42499200 95 0 low none
3 network-control 5 2236800 5 0 low none
To view information about a channelized T1 channel, include the ct1-fpc/pic /port:channel option with the show interfaces command:
user@RouterA> show interfaces extensive
ct1-0/0/1:2 Physical interface: ct1-0/0/1:2, Enabled, Physical link is Up
Interface index: 175, SNMP ifIndex: 1505, Generation: 174
Link-level type: Controller, MTU: 1504, Clocking: Internal, Speed: T1,
Loopback: None, FCS: 16, Framing: ESF, Parent: ct3-0/0/1 (Index 32)
Device flags : Present Running
Interface flags: Point-To-Point SNMP-Traps
Link flags : None
Hold-times : Up 0 ms, Down 0 ms
Last flapped : 2002-10-04 12:08:23 PDT (00:05:57 ago)
Statistics last cleared: Never
Traffic statistics:
Input bytes : 0 0 bps
Output bytes : 0 0 bps
Input packets: 0 0 pps
Output packets: 0 0 pps
Input errors:
Errors: 0, Drops: 0, Framing errors: 0, Policed discards: 0,
L3 incompletes: 0, L2 channel errors: 0, L2 mismatch timeouts: 0,
HS link CRC errors: 0, SRAM errors: 0
Output errors:
Carrier transitions: 0, Errors: 0, Drops: 0, Aged packets: 0
DS1 alarms : None
DS1 defects : AIS, LOF
T1 media: Seconds Count State
SEF 0 0 OK
BEE 1 1 OK
AIS 355 1 Defect Active
LOF 355 1 Defect Active
LOS 0 0 OK
YELLOW 0 0 OK
BPV 0 0
EXZ 0 0
LCV 0 0
PCV 0 0
CS 0 0
LES 355
ES 355
SES 355
SEFS 355
BES 0
UAS 0
HDLC configuration:
Policing bucket: Disabled
Shaping bucket : Disabled
Giant threshold: 1514, Runt threshold: 0
Timeslots : All active
Line encoding: B8ZS, Byte encoding: Nx64K
Buildout : 0 to 132 feet
Data inversion: Disabled
DS1 BERT configuration:
BERT time period: 10 seconds, Elapsed: 0 seconds
Induced Error rate: 10e-0, Algorithm: 2^15 - 1, O.151, Pseudorandom (9)
Packet Forwarding Engine configuration:
Destination slot: 0 (0x00)
CoS transmit queue Bandwidth Buffer Priority Limit
% bps % bytes
0 best-effort 95 1459200 95 0 low none
3 network-control 5 76800 5 0 low none
To view information about an NxDS0 interface, include the ds-fpc/pic/port:channel option with the show interfaces command. In this case, the speed is 640 Kbps because this channel contains 10 DS0s (64 x 10 = 640).
user@RouterA> show interfaces extensive
ds-0/0/1:2:1 Physical interface: ds-0/0/1:2:1, Enabled, Physical link is Up
Interface index: 176, SNMP ifIndex: 1563, Generation: 175
Link-level type: PPP, MTU: 1504, Clocking: Internal, Speed: 640kbps,
Loopback: None, FCS: 16, Parent: ct1-0/0/1:2 (Index 175)
Device flags : Present Running
Interface flags: Point-To-Point SNMP-Traps
Link flags : Keepalives
Hold-times : Up 0 ms, Down 0 ms
Last flapped : 2002-10-04 12:09:06 PDT (00:05:54 ago)
Statistics last cleared: Never
Traffic statistics:
Input bytes : 0 0 bps
Output bytes : 0 0 bps
Input packets: 0 0 pps
Output packets: 0 0 pps
Input errors:
Errors: 0, Drops: 0, Framing errors: 0, Policed discards: 0,
L3 incompletes: 0, L2 channel errors: 0, L2 mismatch timeouts: 0,
HS link CRC errors: 0
Output errors:
Carrier transitions: 1, Errors: 0, Drops: 0, Aged packets: 0
Queue counters: Queued packets Transmitted packets Dropped packets
0 best-effort 0 0 0
1 expedited-fo 0 0 0
2 assured-forw 0 0 0
3 network-cont 0 0 0
Interface transmit queues:
B/W WRR Packets Bytes Drops Errors
Queue0 0 0 0 0 0 0
Queue1 0 0 0 0 0 0
HDLC configuration:
Giant threshold: 0, Runt threshold: 0
Timeslots : 1-10
Byte encoding: Nx64K, Data inversion: Disabled
Packet Forwarding Engine configuration:
Destination slot: 0, PLP byte: 4 (0x10)
CoS transmit queue Bandwidth Buffer Priority Limit
% bps % bytes
0 best-effort 95 608000 95 0 low none
3 network-control 5 32000 5 0 low none
Figure 7: Channelized T1 IQ Interface Example

The following example shows two ways to configure a channelized T1 IQ interface. Figure 7 shows a fractional T1 method and the NxDS0 method seen previously in the complex OC12 configuration example (see Example: Complex Configuration for a Channelized OC12 IQ Interface). The NxDS0 method breaks the channelized T1 IQ interface into discrete DS0 blocks, whereas the fractional method creates a clear channel T1 that is segmented by time slots.
To configure NxDS0 channels, include the partition statement at the [edit interfaces ct1-fpc/pic/port] hierarchy level. Include the timeslots and interface-type ds options to create the desired number of NxDS0 interfaces in time slots 1 through 24.
To configure a clear channel T1 on a channelized T1 IQ interface, include the no-partition statement with the interface-type t1 option at the [edit interfaces ct1-fpc/pic/port] hierarchy level. After you commit this configuration, you can create a fractional T1 on the clear channel T1 interface. To do so, include the timeslots statement at the [edit interfaces t1-fpc/pic/port t1-options] hierarchy level and specify the number of DS0 blocks to be allowed in the fractional T1 interface. The minimum number of 64-Kbps DS0 blocks you can configure is 1 and the maximum is 24.
Usually, you configure loopback statements at the controller level for all IQ-based channelized interfaces. One exception for channelized T1 IQ interfaces is that you must configure a payload loopback on a T1 IQ interface instead of the controller-level channelized T1 IQ interface. To configure, include the payload option at the [edit interfaces t1-fpc/pic/port t1-options loopback] hierarchy level.
Router A—NxDS0 Method
- [edit]
- interfaces {
-
- ct1-2/3/7 {
- partition 1 timeslots 10 interface-type ds; # Creates NxDS0 channel ds-2/3/7:1.
- partition 2 timeslots 1-9 interface-type ds; # Creates
a channel group with
- } #
9 NxDS0s.
-
- ds-2/3/7:1 {
-
- unit 0 {
-
- family inet {
- address 10.25.1.2/24;
- }
- }
- }
-
- ds-2/3/7:2 {
-
- unit 0 {
-
- family inet {
- address 10.25.2.2/24;
- }
- }
- }
- }
Router A—Fractional T1 Method
- [edit]
- interfaces {
-
- ct1-2/3/8 {
- no-partition interface-type t1; # This creates a single
T1 channel: t1-2/3/8.
- }
-
- t1-2/3/8 {
-
- t1-options {
- timeslots 1-2; # This statement enables only 2 of the 24 NxDS0 time slots
- } #
available on t1-2/3/8.
-
- unit 0 {
-
- family inet {
- address 10.255.126.2/24;
- }
- }
- }
- }
To verify correct operation of a channelized T1 IQ interface, use the following commands:
To view the interface names of the physical channelized T1 IQ interface and the resulting interfaces configured on the channelized IQ interface, use the show interfaces controller command:
user@RouterA> show interfaces controller
ct1-2/3/7 Controller Admin Link
ct1-2/3/7 up up
ds-2/3/7:1 up up
ds-2/3/7:2 up up
# ct1-2/3/7 is the physical channelized T1 IQ interface, and ds-2/3/7:1 and ds-2/3/7:2 are the resulting N xDS0 interfaces.
user@RouterA> show interfaces controller ct1-2/3/8
Controller Admin Link
ct1-2/3/8 up up
t1-2/3/8 up up
# ct1-2/3/8 is the physical channelized T1 IQ interface, and t1-2/3/8 is the resulting T1 interface.
To view information about the physical channelized interface, include the ct1-fpc/pic/port option with the show interfaces command:
user@RouterA> show interfaces ct1-2/3/7 Physical interface: ct1-2/3/7, Enabled, Physical link is Up
Interface index: 18, SNMP ifIndex: 1128, Generation: 27
Link-level type: Controller, Clocking: Internal, Speed: T1,
Loopback: None, Framing: ESF, Parent: None
Device flags : Present Running
Interface flags: Point-To-Point SNMP-Traps 16384
Link flags : None
Hold-times : Up 0 ms, Down 0 ms
CoS queues : 4 supported
Last flapped : 2005-08-01 18:00:12 PDT (1d 00:31 ago)
Input rate : 0 bps (0 pps)
Output rate : 0 bps (0 pps)
Statistics last cleared: Never
DS1 alarms : None
DS1 defects : None
Line encoding: B8ZS
user@RouterA> show interfaces ct1-2/3/8 Physical interface: ct1-2/3/8, Enabled, Physical link is Up
Interface index: 25, SNMP ifIndex: 1134, Generation: 28
Link-level type: Controller, Clocking: Internal, Speed: T1,
Loopback: None, Framing: ESF, Parent: None
FCS: 16, Framing: G704, Parent: None
Device flags : Present Running
Interface flags: Point-To-Point SNMP-Traps 16384
Link flags : None
Hold-times : Up 0 ms, Down 0 ms
CoS queues : 4 supported
Last flapped : 2005-08-01 18:00:11 PDT (1d 00:30 ago)
Input rate : 0 bps (0 pps)
Output rate : 0 bps (0 pps)
Statistics last cleared: Never
DS1 alarms : None
DS1 defects : None
Line encoding: B8ZS
To view information about an NxDS0 interface, include the ds-fpc/pic/port:channel option with the show interfaces command:
user@RouterA> show interfaces
ds-2/3/7:1 detail Physical interface: ds-2/3/7:1, Enabled, Physical link is Up
Interface index: 73, SNMP ifIndex: 1202, Generation: 325
Link-level type: PPP, MTU: 1504, Clocking: Internal, Speed: 64kbps, Loopback: None,
FCS: 16, Parent: ct1-2/3/7 Interface index 18
Device flags : Present Running
Interface flags: Point-To-Point SNMP-Traps 16384
Link flags : Keepalives
Hold-times : Up 0 ms, Down 0 ms
Keepalive settings: Interval 10 seconds, Up-count 1, Down-count 3
Keepalive statistics:
Input : 11 (last seen 00:00:02 ago)
Output: 10 (last sent 00:00:06 ago)
LCP state: Opened
NCP state: inet: Opened, inet6: Opened, iso: Opened, mpls: Not-configured
CHAP state: Not-configured
CoS queues : 4 supported
Last flapped : 2005-08-03 12:30:37 PDT (00:10:26 ago)
Statistics last cleared: Never
Traffic statistics:
Input bytes : 559 56 bps
Output bytes : 656 56 bps
Input packets: 33 0 pps
Output packets: 36 0 pps
Queue counters: Queued packets Transmitted packets Dropped packets
0 best-effort 40 40 0
1 expedited-fo 0 0 0
2 assured-forw 0 0 0
3 network-cont 0 0 0
Logical interface ds-2/3/7:1.0 (Index 36) (SNMP ifIndex 1266) (Generation 153)
Flags: Point-To-Point SNMP-Traps Encapsulation: PPP
Protocol inet, MTU: 1500, Generation: 352, Route table: 0
Flags: None
Addresses, Flags: Is-Preferred Is-Primary
Destination: 10.25.1/24, Local: 10.25.1.2, Broadcast: 10.25.1.255,
Generation: 445
Protocol iso, MTU: 1500, Generation: 353, Route table: 0
Flags: Is-Primary
Protocol inet6, MTU: 1500, Generation: 354, Route table: 0
Flags: Is-Primary
Addresses, Flags: Is-Preferred
Destination: fe80::/64, Local: fe80::2a0:a5ff:fe3d:ac6, Broadcast: Unspecified,
Generation: 446
Addresses, Flags: Is-Preferred Is-Primary
Destination: feee::10:25:1:0/126, Local: feee::10:25:1:2,
Broadcast: Unspecified, Generation: 448
To view information about a T1 or fractional T1 interface, include the t1-fpc/pic /port option with the show interfaces command. The Speed: field shows if the interface is a full T1(T1) or a fractional T1 (increments of 64 Kbps). In this case, t1-2/3/8 is a fractional T1 using two 64-Kbps time slots for a total speed of 128 Kbps.
user@RouterA> show interfaces t1-2/3/8
detail Physical interface: t1-2/3/8, Enabled, Physical link is Up
Interface index: 89, SNMP ifIndex: 1278, Generation: 341
Link-level type: PPP, MTU: 1504, Clocking: Internal, Speed: 128kbps,
Loopback: None, FCS: 16, Parent: ct1-2/3/8 Interface index 25
Device flags : Present Running
Interface flags: Point-To-Point SNMP-Traps 16384
Link flags : Keepalives
Hold-times : Up 0 ms, Down 0 ms
Keepalive settings: Interval 10 seconds, Up-count 1, Down-count 3
Keepalive statistics:
Input : 4 (last seen 00:00:05 ago)
Output: 3 (last sent 00:00:09 ago)
LCP state: Opened
NCP state: inet: Opened, inet6: Not-configured, iso: Not-configured, mpls:
Not-configured
CHAP state: Not-configured
CoS queues : 4 supported
Last flapped : 2005-08-03 12:30:37 PDT (01:17:36 ago)
Statistics last cleared: Never
Traffic statistics:
Input bytes : 189 0 bps
Output bytes : 478 0 bps
Input packets: 13 0 pps
Output packets: 28 0 pps
Queue counters: Queued packets Transmitted packets Dropped packets
0 best-effort 28 28 0
1 expedited-fo 0 0 0
2 assured-forw 0 0 0
3 network-cont 0 0 0
DS1 alarms : None
DS1 defects : None
Logical interface t1-2/3/8.0 (Index 52) (SNMP ifIndex 1279) (Generation 169)
Flags: Point-To-Point SNMP-Traps Encapsulation: PPP
Protocol inet, MTU: 1500, Generation: 401, Route table: 0
Flags: None
Addresses, Flags: Is-Preferred Is-Primary
Destination: 10.255.126/24, Local: 10.255.126.2,
Broadcast: 10.255.126.255, Generation: 525
Figure 8: Channelized STM1 IQ Interface Example

This example shows how to configure a channelized STM1 IQ interface on M-series or T-series routing platforms. Figure 8 shows the breakdown of one channelized STM1 IQ interface into a variety of channels and the conversion of the second interface into a clear channel STM1.
For the first interface, you must first convert the STM1 interface into a channelized Administrative Unit 4 (AU-4) interface with the no-partition and interface-type cau-4 statements at the [edit interfaces cstm1-fpc/pic/port] hierarchy level. You must specify KLM or ITU-T AU-4 formatting with the vtmapping statement at the [edit interfaces cau4-fpc/pic/port sonet-options] hierarchy level. From the channelized AU-4 interface, you can create E1 channels or channelized E1 channels. The channelized E1 channels can be further broken into DS0 time slots.
To create E1 channels, include the partition statement at the [edit interfaces cau4-fpc/pic/port] hierarchy level with the interface-type e1 option. To create channelized E1 channels, include the partition statement at the [edit interfaces cau4-fpc/pic/port] hierarchy level with the interface-type ce1 option.
After you have established a channelized E1 channel,
you can split it into a maximum of 31 NxDS0 channels.
To create the desired number of NxDS0 channels,
include the partition statement with the timeslots and interface-type ds options at the [edit interfaces
ce1-fpc/pic/port:channel] hierarchy level. Time
slot 1 is reserved in an NxDS0-based
channelized E1 channel, so you can use time slots 2 through 32.
To create an NxDS0
channel group, include a range of time slots after the
timeslots option.
You can also create fractional E1 interfaces on a channelized STM1 IQ interface. To configure a fractional E1 interface, include the partition statement at the [edit interfaces cau4-fpc/pic/port] hierarchy level and select the interface-type e1 option. After you commit this part of the configuration, a clear channel E1 interface is established. You can configure standard E1 options on this interface. To fractionalize the E1 interface, include the timeslots statement at the [edit interfaces e1-fpc/pic/port e1-options] hierarchy level. Time slot 1 is reserved in a fractional E1 channel, so you can use time slots 2 through 32.
In the second interface shown in Figure 8, you convert the channelized STM1 IQ interface into a clear channel STM1 interface. To configure, include the no-partition and interface-type so statements at the [edit interfaces cstm1-fpc/pic/port] hierarchy level.
- [edit]
- interfaces {
-
- cau4-0/0/0 {
- partition 1-10 interface-type e1; # Creates interfaces
e1-0/0/0:1 through :10.
- partition 11 interface-type ce1; # Creates a single channelized
E1 interface:
-
- sonet-options { #
e1-0/0/0:11.
- vtmapping itu-t; # This selects ITU-T as the VT mapping
frame format.
- }
- }
-
- cstm1-0/0/0 {
- no-partition interface-type cau4; # Creates a channelized
AU-4 interface:
- } #
cau4-0/0/0.
-
- e1-0/0/0:1 { # Channel
e1-0/0/0:1 is a fractional E1 interface.
- encapsulation ppp;
-
- e1-options {
- timeslots 2-21; # Setting time slots on an E1 channel makes
a fractional E1.
- }
-
- unit 0 {
-
- family inet {
- address 10.133.0.1/30;
- }
- }
- }
-
- e1-0/0/0:2 { # Channels e1-0/0/0:2 through :10 are standard
E1 interfaces.
- encapsulation ppp;
-
- unit 0 {
-
- family inet {
- address 10.133.0.5/30;
- }
- }
- }
- ...
-
- e1-0/0/0:10 {
- encapsulation ppp;
-
- unit 0 {
-
- family inet {
- address 10.133.0.37/30;
- }
- }
- }
-
- ce1-0/0/0:11 { # Channel ce1-0/0/0:11
is a channelized E1 interface.
- partition 1 timeslots 2-11 interface-type
ds; # These statements
- partition 2 timeslots 12-21 interface-type
ds; # create channel groups.
- partition 3 timeslots 22-31 interface-type ds;
- partition 4 timeslots 32 interface-type ds; # This statement
creates a single NXDS0 channel.
- }
-
- ds-0/0/0:11:1 { # This channel group contains 10 DS0s.
-
- unit 0 {
-
- family inet {
- address 10.134.1.1/30;
- }
- }
- }
-
- ds-0/0/0:11:2 { # This channel group contains 10 DS0s.
-
- unit 0 {
-
- family inet {
- address 10.134.2.1/30;
- }
- }
- }
-
- ds-0/0/0:11:3 { # This channel group contains 10 DS0s.
-
- unit 0 {
-
- family inet {
- address 10.134.3.1/30;
- }
- }
- }
-
- ds-0/0/0:11:4 { # Channel ds-0/0/0:11:4 is a standard DS0
interface.
-
- unit 0 {
-
- family inet {
- address 10.134.4.1/30;
- }
- }
- }
- }
Figure 9 shows a visual representation of the E1-to-STM1 SDH mapping method used by Juniper Networks in its channelized STM1 IQ interface.
Figure 9: Channelized STM1 IQ Interface SDH Mapping Method

To verify correct operation of a channelized STM1 IQ interface, use the following commands:
To view the interface names of the physical channelized STM1 IQ interface and the channels configured on this interface, use the show interfaces controller command:
user@router> show interfaces controller
cstm1-0/0/0Controller Admin Link
cstm1-0/0/0 up up
cau4-0/0/0 up up
e1-0/0/0:1 up up
e1-0/0/0:2 up up
e1-0/0/0:3 up up
e1-0/0/0:4 up up
e1-0/0/0:5 up up
e1-0/0/0:6 up up
e1-0/0/0:7 up up
e1-0/0/0:8 up up
e1-0/0/0:9 up up
e1-0/0/0:10 up up
ce1-0/0/0:11 up up
ds-0/0/0:11:1 up up
ds-0/0/0:11:2 up up
ds-0/0/0:11:3 up up
ds-0/0/0:11:4 up up
To view information about the physical channelized interface, include the cstm1-fpc/pic/port option with the show interfaces command:
user@router> show interfaces cstm1-0/0/0Physical interface: cstm1-0/0/0, Enabled, Physical link is Up Interface index: 146, SNMP ifIndex: 35 Link-level type: Controller, Clocking: Internal, SDH mode, Speed: OC3, Loopback: None, Parent: None Device flags : Present Running Interface flags: Point-To-Point SNMP-Traps Link flags : None Last flapped : 2003-02-06 15:01:56 PST (07:15:06 ago) SDH alarms : None SDH defects : None
To view information about the channelized AU-4 channel, include the cau4-fpc/pic/port option with the show interfaces command:
user@router> show interfaces cau4-0/0/0Physical interface: cau4-0/0/0, Enabled, Physical link is Up Interface index: 147, SNMP ifIndex: 36 Link-level type: Controller, Clocking: Internal, SDH mode, Speed: OC3, Loopback: None, Parent: cstm1-0/0/0 Interface index 146 Device flags : Present Running Interface flags: Point-To-Point SNMP-Traps Link flags : None Last flapped : 2003-02-06 19:36:31 PST (02:40:42 ago) SDH alarms : None SDH defects : None
To view information about an E1 channel, include the e1-fpc/pic/port:channel option with the show interfaces command. In this case, the fractional E1 appears as channel e1-0/0/0:1 and the normal E1 appears as channel e1-0/0/0:2.
user@router> show interfaces e1-0/0/0:1Physical interface: e1-0/0/0:1, Enabled, Physical link is Up
Interface index: 148, SNMP ifIndex: 33
Link-level type: PPP, MTU: 1504, Clocking: Internal, Speed: 1280kbps ,
# Because the fractional E1 uses 20 time slots, 20 x 64 Kbps = 1280 Kbps.
Loopback: None, FCS: 16, Framing: G704,
Parent: cau4-0/0/0 Interface index 147
Device flags : Present Running
Interface flags: Point-To-Point SNMP-Traps
Link flags : Keepalives
Keepalive settings: Interval 10 seconds, Up-count 1, Down-count 3
Keepalive: Input: 1055 (00:00:03 ago), Output: 1059 (00:00:06 ago)
LCP state: Opened
NCP state: inet: Opened, inet6: Not-configured, iso: Not-configured,
mpls: Not-configured
CHAP state: Not-configured
Last flapped : Never
Input rate : 16 bps (0 pps)
Output rate : 16 bps (0 pps)
DS1 alarms : None
DS1 defects : None
SDH alarms : None
SDH defects : None
Logical interface e1-0/0/0:1.0 (Index 67) (SNMP ifIndex 169)
Flags: Point-To-Point SNMP-Traps Encapsulation: PPP
Bandwidth: 0
Protocol inet, MTU: 1500
Flags: None
Addresses, Flags: Is-Preferred Is-Primary
Destination: 10.133.0.0/30, Local: 10.133.0.1
user@router> show interfaces e1-0/0/0:2 Physical interface: e1-0/0/0:2, Enabled, Physical link is Up
Interface index: 149, SNMP ifIndex: 34
Link-level type: PPP, MTU: 1504, Clocking: Internal, Speed: E1,
Loopback: None, FCS: 16, Framing: G704,
Parent: cau4-0/0/0 Interface index 147
Device flags : Present Running
Interface flags: Point-To-Point SNMP-Traps
Link flags : Keepalives
Keepalive settings: Interval 10 seconds, Up-count 1, Down-count 3
Keepalive: Input: 917 (00:00:05 ago), Output: 915 (00:00:01 ago)
LCP state: Opened
NCP state: inet: Opened, inet6: Not-configured, iso: Not-configured,
mpls: Not-configured
CHAP state: Not-configured
Last flapped : Never
Input rate : 16 bps (0 pps)
Output rate : 16 bps (0 pps)
DS1 alarms : None
DS1 defects : None
SDH alarms : None
SDH defects : None
Logical interface e1-0/0/0:2.0 (Index 68) (SNMP ifIndex 170)
Flags: Point-To-Point SNMP-Traps Encapsulation: PPP
Bandwidth: 0
Protocol inet, MTU: 1500
Flags: None
Addresses, Flags: Is-Preferred Is-Primary
Destination: 10.133.0.4/30, Local: 10.133.0.5
To view information about a CE1 channel, include the ce1-fpc/pic/port:channel option with the show interfaces command:
user@router> show interfaces ce1-0/0/0:11Physical interface: ce1-0/0/0:11, Enabled, Physical link is Up Interface index: 169, SNMP ifIndex: 288 Link-level type: Controller, Clocking: Internal, Speed: E1, Loopback: None, Framing: G704, Parent: cau4-0/0/0 Interface index 147 Device flags : Present Running Interface flags: Point-To-Point SNMP-Traps Link flags : None Last flapped : 2003-02-06 22:05:23 PST (00:13:45 ago) DS1 alarms : None DS1 defects : None SDH alarms : None SDH defects : None
To view information about an NxDS0 interface, include the ds-fpc/ pic/port:channel:channel option with the show interfaces command. For channel group ds-0/0/0:11:1, the speed of the link is 640 Kbps because it contains 10 DS0s (64 x 10 = 640). For single DS0 channel ds-0/0/0:11:4, the speed of the link is the standard 64 Kbps.
user@router> show interfaces ds-0/0/0:11:1Physical interface: ds-0/0/0:11:1, Enabled, Physical link is Up
Interface index: 170, SNMP ifIndex: 289
Link-level type: PPP, MTU: 1504, Clocking: Internal, Speed: 640kbps,
Loopback: Illegal, FCS: 16,
Parent: ce1-0/0/0:11 Interface index 169
Device flags : Present Running
Interface flags: Point-To-Point SNMP-Traps
Link flags : Keepalives
Keepalive settings: Interval 10 seconds, Up-count 1, Down-count 3
Keepalive: Input: 0 (never), Output: 0 (never)
LCP state: Conf-req-sent
NCP state: inet: Down, inet6: Not-configured, iso: Not-configured, mpls: Not-configured
CHAP state: Not-configured
Last flapped : Never
Input rate : 0 bps (0 pps)
Output rate : 0 bps (0 pps)
DS0 BERT configuration:
BERT time period: 10 seconds, Elapsed: 0 seconds
Induced Error rate: 10e-0, Algorithm: 2^15 - 1, O.151, Pseudorandom (9)
Logical interface ds-0/0/0:11:1.0 (Index 77) (SNMP ifIndex 290)
Flags: Hardware-Down Point-To-Point SNMP-Traps Encapsulation: PPP
Bandwidth: 0
Protocol inet, MTU: 1500
Flags: Protocol-Down
Addresses, Flags: Dest-route-down Is-Preferred Is-Primary
Destination: 10.134.1.0/30, Local: 10.134.1.1
user@router> show interfaces ds-0/0/0:11:4
Physical interface: ds-0/0/0:11:4, Enabled, Physical link is Up
Interface index: 173, SNMP ifIndex: 295
Link-level type: PPP, MTU: 1504, Clocking: Internal, Speed: 64kbps, Loopback: Illegal, FCS: 16,
Parent: ce1-0/0/0:11 Interface index 169
Device flags : Present Running
Interface flags: Point-To-Point SNMP-Traps
Link flags : Keepalives
Keepalive settings: Interval 10 seconds, Up-count 1, Down-count 3
Keepalive: Input: 0 (never), Output: 0 (never)
LCP state: Conf-req-sent
NCP state: inet: Down, inet6: Not-configured, iso: Not-configured, mpls: Not-configured
CHAP state: Not-configured
Last flapped : Never
Input rate : 0 bps (0 pps)
Output rate : 0 bps (0 pps)
DS0 BERT configuration:
BERT time period: 10 seconds, Elapsed: 0 seconds
Induced Error rate: 10e-0, Algorithm: 2^15 - 1, O.151, Pseudorandom (9)
Logical interface ds-0/0/0:11:4.0 (Index 80) (SNMP ifIndex 296)
Flags: Hardware-Down Point-To-Point SNMP-Traps Encapsulation: PPP
Bandwidth: 0
Protocol inet, MTU: 1500
Flags: Protocol-Down
Addresses, Flags: Dest-route-down Is-Preferred Is-Primary
Destination: 10.134.4.0/30, Local: 10.134.4.1
Figure 10: Channelized E1 IQ Interface Example

This example shows two ways to configure a channelized E1 IQ interface. Figure 10 shows a fractional E1 method and the NxDS0 method seen previously in the complex OC12 configuration example (see Example: Complex Configuration for a Channelized OC12 IQ Interface). The NxDS0 method breaks the channelized E1 IQ interface into discrete DS0 blocks, whereas the fractional method creates a clear channel E1 that is segmented by time slots.
To configure NxDS0 channels, include the partition statement at the [edit interfaces ce1-fpc /pic/port] hierarchy level. Include the timeslots and interface-type ds options to create the desired number of NxDS0 interfaces in time slots 2 through 32.
To configure a fractional E1 on a channelized E1 IQ interface, include the no-partition statement at the [edit interfaces ce1-fpc/pic/port] hierarchy level. After you commit this configuration, configure standard E1 options on the clear channel E1 interface. Include the timeslots statement at the [edit interfaces e1-fpc/pic/port e1-options] hierarchy level. Time slot 1 is reserved; use time slots 2 through 32.
Router A—NxDS0 Method
- [edit]
- interfaces {
-
- ce1-1/2/3 {
- partition 1 timeslots 11 interface-type ds; # Creates NxDS0 channel ds-1/2/3:1.
- partition 2 timeslots 2-10 interface-type ds; # Creates
a channel group with
- } #
9 NxDS0s.
-
- ds-1/2/3:1 {
-
- unit 0 {
-
- family inet {
- address 10.25.1.2/24;
- }
- }
- }
-
- ds-1/2/3:2 {
-
- unit 0 {
-
- family inet {
- address 10.25.2.2/24;
- }
- }
- }
- }
Router A—Fractional E1 Method
- [edit]
- interfaces {
-
- ce1-1/2/6 {
- no-partition interface-type e1; # This creates a single
E1 channel: e1-1/2/6.
- }
-
- e1-1/2/6 {
-
- e1-options {
- timeslots 2-3; # This statement enables only 2 of the 31 NxDS0 time slots
- } #
available on e1-1/2/6. You can use time slots 2 through 32.
-
- unit 0 {
-
- family inet {
- address 10.255.126.2/24;
- }
- }
- }
- }
To verify correct operation of a channelized E1 IQ interface, use the following commands:
To view the interface names of the physical channelized E1 IQ interface and the resulting interfaces configured on the channelized IQ interface, use the show interfaces controller command:
user@RouterA> show interfaces controller
ce1-1/2/3 Controller Admin Link
ce1-1/2/3 up up
# This is the physical channelized E1 IQ interface.
ds-1/2/3:1 up up
ds-1/2/3:2 up up
# These are the resulting N xDS0 interfaces.
user@RouterA> show interfaces controller ce1-1/2/6
Controller Admin Link
ce1-1/2/6 up up
# This is the physical channelized E1 IQ interface.
e1-1/2/6 up up
# This is the resulting E1 interface.
To view information about the physical channelized interface, include the ce1-fpc/pic/port option with the show interfaces command:
user@RouterA> show interfaces ce1-1/2/3 Physical interface: ce1-1/2/3, Enabled, Physical link is Up Interface index: 18, SNMP ifIndex: 1128 Link-level type: Controller, MTU: 1504, Clocking: Internal, Speed: E1, Loopback: None, FCS: 16, Framing: G704, Parent: None Device flags : Present Running Interface flags: Point-To-Point SNMP-Traps Link flags : None Last flapped : 2002-10-04 17:52:51 PDT (00:32:57 ago) Input rate : 0 bps (0 pps) Output rate : 0 bps (0 pps) DS1 alarms : None DS1 defects : None user@RouterA> show interfaces ce1-1/2/6 Physical interface: ce1-1/2/6, Enabled, Physical link is Up Interface index: 25, SNMP ifIndex: 1134 Link-level type: Controller, MTU: 1504, Clocking: Internal, Speed: E1, Loopback: None, FCS: 16, Framing: G704, Parent: None Device flags : Present Running Interface flags: Point-To-Point SNMP-Traps Link flags : None Last flapped : 2002-10-04 17:52:51 PDT (00:34:49 ago) Input rate : 0 bps (0 pps) Output rate : 0 bps (0 pps) DS1 alarms : None DS1 defects : None
To view information about an NxDS0 interface, include the ds-fpc/ pic/port:channel option with the show interfaces command:
user@RouterA> show interfaces
ds-1/2/3:1 detail Physical interface: ds-1/2/3:1, Enabled, Physical link is Up
Interface index: 73, SNMP ifIndex: 1202, Generation: 325
Link-level type: PPP, MTU: 1504, Clocking: Internal, Speed: 64kbps, Loopback: None,
FCS: 16, Parent: ce1-1/2/3 (Index 18)
Device flags : Present Running
Interface flags: Point-To-Point SNMP-Traps
Link flags : Keepalives
Hold-times : Up 0 ms, Down 0 ms
Keepalive settings: Interval 10 seconds, Up-count 1, Down-count 3
Keepalive statistics:
Input : 11 (last seen 00:00:02 ago)
Output: 10 (last sent 00:00:06 ago)
LCP state: Opened
NCP state: inet: Opened, inet6: Opened, iso: Opened, mpls: Not-configured
CHAP state: Not-configured
Last flapped : 2002-10-04 18:24:32 PDT (00:01:46 ago)
Statistics last cleared: Never
Traffic statistics:
Input bytes : 559 56 bps
Output bytes : 656 56 bps
Input packets: 33 0 pps
Output packets: 36 0 pps
Queue counters: Queued packets Transmitted packets Dropped packets
0 best-effort 40 40 0
1 expedited-fo 0 0 0
2 assured-forw 0 0 0
3 network-cont 0 0 0
Logical interface ds-1/2/3:1.0 (Index 36) (SNMP ifIndex 1266) (Generation 153)
Flags: Point-To-Point SNMP-Traps Encapsulation: PPP
Protocol inet, MTU: 1500, Generation: 352, Route table: 0
Flags: None
Addresses, Flags: Is-Preferred Is-Primary
Destination: 10.25.1/24, Local: 10.25.1.2, Broadcast: Unspecified,
Generation: 445
Protocol iso, MTU: 1500, Generation: 353, Route table: 0
Flags: Is-Primary
Protocol inet6, MTU: 1500, Generation: 354, Route table: 0
Flags: Is-Primary
Addresses, Flags: Is-Preferred
Destination: fe80::/64, Local: fe80::2a0:a5ff:fe3d:ac6, Broadcast: Unspecified,
Generation: 446
Addresses, Flags: Is-Preferred Is-Primary
Destination: feee::10:25:1:0/126, Local: feee::10:25:1:2,
Broadcast: Unspecified, Generation: 448
To view information about the fractional E1 interface, include the e1-fpc/pic/port option with the show interfaces command:
user@RouterA> show interfaces e1-1/2/6
detail Physical interface: e1-1/2/6, Enabled, Physical link is Up
Interface index: 89, SNMP ifIndex: 1278, Generation: 341
Link-level type: PPP, MTU: 1504, Clocking: Internal, Speed: E1, Loopback:None,
FCS: 16, Framing: G704, Parent: ce1-1/2/6 (Index 25)
Device flags : Present Running
Interface flags: Point-To-Point SNMP-Traps
Link flags : Keepalives
Hold-times : Up 0 ms, Down 0 ms
Keepalive settings: Interval 10 seconds, Up-count 1, Down-count 3
Keepalive statistics:
Input : 4 (last seen 00:00:05 ago)
Output: 3 (last sent 00:00:09 ago)
LCP state: Opened
NCP state: inet: Opened, inet6: Not-configured, iso: Not-configured, mpls:
Not-configured
CHAP state: Not-configured
Last flapped : 2002-10-04 18:28:27 PDT (00:01:07 ago)
Statistics last cleared: Never
Traffic statistics:
Input bytes : 189 0 bps
Output bytes : 478 0 bps
Input packets: 13 0 pps
Output packets: 28 0 pps
Queue counters: Queued packets Transmitted packets Dropped packets
0 best-effort 28 28 0
1 expedited-fo 0 0 0
2 assured-forw 0 0 0
3 network-cont 0 0 0
DS1 alarms : None
DS1 defects : None
DS1 BERT configuration:
BERT time period: 10 seconds, Elapsed: 0 seconds
Induced Error rate: 10e-0, Algorithm: Unknown (0)
Logical interface e1-1/2/6.0 (Index 52) (SNMP ifIndex 1279) (Generation 169)
Flags: Point-To-Point SNMP-Traps Encapsulation: PPP
Bandwidth: 0
Protocol inet, MTU: 1500, Generation: 401, Route table: 0
Flags: None
Addresses, Flags: Is-Preferred Is-Primary
Destination: 10.255.126/24, Local: 10.255.126.2, Broadcast: Unspecified,
Generation: 525