 |
Caution: We recommend that you use this command only for diagnostic purposes. Do not leave it on during normal router operations because real-time monitoring of traffic consumes additional CPU and memory resources. |
To monitor an ATM2 interface, follow these steps:
To display the status of a specific ATM2 IQ interface, use the following JUNOS CLI operational mode commands:
Sample Output 1
user@host> show interfaces terse at-2/2/0 Interface Admin Link Proto Local Remote at-2/2/0 up up at-2/2/0.100 up up inet 10.16.5.1/24 at-2/2/0.101 up up inet 10.16.250.253/30 at-2/2/0.200 up up inet 20.20.20.1/30 at-2/2/0.300 up up inet 30.30.30.1/30 at-2/2/0.400 up up inet 40.40.40.1/30 at-2/2/0.32767 up up
Sample Output 2
user@host> show interfaces at-2/2/0 Physical interface: at-2/2/0, Enabled, Physical link is Up
Interface index: 138, SNMP ifIndex: 26
Link-level type: ATM-PVC, MTU: 4482, Clocking: Internal, SONET mode, Speed: OC12, Loopback: None,
Payload scrambler: Enabled
Device flags : Present Running
Link flags : None
CoS queues : 4 supported
Current address: 00:90:69:d6:d5:3a
Last flapped : 2004-05-03 14:32:52 UTC (02:41:35 ago)
Input rate : 0 bps (0 pps)
Output rate : 0 bps (0 pps)
SONET alarms : None
SONET defects : None
VPI 1
Flags: Active
Total down time: 0 sec, Last down: Never
Traffic statistics:
Input packets: 0
Output packets: 18
Logical interface at-2/2/0.100 (Index 67) (SNMP ifIndex 36)
Flags: Point-To-Multipoint SNMP-Traps Encapsulation: Ether-over-ATM-LLC
Input packets : 0
Output packets: 7
Protocol inet, MTU: 1500
Flags: None
Addresses, Flags: Is-Preferred Is-Primary
Destination: 172.16.5/24, Local: 172.16.5.1, Broadcast: 172.16.5.255
VCI 1.100
Flags: Active, Shaping, Multicast
VBR, Peak: 66kbps, Sustained: 66kbps, Burst size: 40
Total down time: 0 sec, Last down: Never
EPD threshold: 0, Transmit weight cells: 0
Input packets : 0
Output packets: 14
Logical interface at-2/2/0.101 (Index 68) (SNMP ifIndex 37)
Flags: Point-To-Point SNMP-Traps Encapsulation: ATM-SNAP
Input packets : 0
Output packets: 2
Protocol inet, MTU: 4470
Flags: None
Addresses, Flags: Is-Preferred Is-Primary
Destination: 172.16.250.252/30, Local: 172.16.250.253, Broadcast: 172.16.250.255
VCI 1.101
Flags: Active
Total down time: 0 sec, Last down: Never
EPD threshold: 0, Transmit weight cells: 0
Input packets : 0
Output packets: 2
Logical interface at-2/2/0.200 (Index 69) (SNMP ifIndex 8280)
Flags: Point-To-Point SNMP-Traps Encapsulation: ATM-SNAP
Input packets : 0
Output packets: 0
Protocol inet, MTU: 4470
Flags: None
Addresses, Flags: Is-Preferred Is-Primary
Destination: 20.20.20.0/30, Local: 20.20.20.1, Broadcast: 20.20.20.3
VCI 1.200
Flags: Active
Total down time: 0 sec, Last down: Never
EPD threshold: 0, Transmit weight cells: 0
Input packets : 0
Output packets: 0
Logical interface at-2/2/0.300 (Index 70) (SNMP ifIndex 8281)
Flags: Point-To-Point SNMP-Traps Encapsulation: ATM-SNAP
Input packets : 0
Output packets: 0
Protocol inet, MTU: 4470
Flags: None
Addresses, Flags: Is-Preferred Is-Primary
Destination: 30.30.30.0/30, Local: 30.30.30.1, Broadcast: 30.30.30.3
VCI 1.300
Flags: Active
Total down time: 0 sec, Last down: Never
EPD threshold: 0, Transmit weight cells: 0
Input packets : 0
Output packets: 0
Logical interface at-2/2/0.400 (Index 72) (SNMP ifIndex 8282)
Flags: Point-To-Point SNMP-Traps Encapsulation: ATM-SNAP
Input packets : 0
Output packets: 0
Protocol inet, MTU: 4470
Flags: None
Addresses, Flags: Is-Preferred Is-Primary
Destination: 40.40.40.0/30, Local: 40.40.40.1, Broadcast: 40.40.40.3
VCI 1.400
Flags: Active
Total down time: 0 sec, Last down: Never
EPD threshold: 0, Transmit weight cells: 0
Input packets : 0
Output packets: 0
Logical interface at-2/2/0.32767 (Index 71) (SNMP ifIndex 27)
Flags: Point-To-Multipoint No-Multicast SNMP-Traps Encapsulation: ATM-VCMUX
Input packets : 0
Output packets: 0
VCI 1.4
Flags: Active
Total down time: 0 sec, Last down: Never
EPD threshold: 0, Transmit weight cells: 0
Input packets : 0
Output packets: 0
Meaning
The first line of the sample output shows that the physical link and all logical links are up. This means that the interface can pass packets.
Further down the sample output, look for active alarms and defects. If there are any, and to further diagnose the problem, see Display Extensive Information for a Specific ATM2 Interface to display more extensive information about the ATM interface and the physical interface that is down.
To display extensive status information about a specific ATM2 interface, use the following JUNOS CLI operational mode command:
Sample Output
user@host> show interfaces at-2/2/0
extensive Physical interface: at-2/2/0, Enabled, Physical link is Up
Interface index: 138, SNMP ifIndex: 26, Generation: 21
Link-level type: ATM-PVC, MTU: 4482, Clocking: Internal, SONET mode, Speed: OC12, Loopback: None,
Payload scrambler: Enabled
Device flags : Present Running
Link flags : None
CoS queues : 4 supported
Hold-times : Up 0 ms, Down 0 ms
Current address: 00:90:69:d6:d5:3a
Last flapped : 2004-05-03 14:32:52 UTC (02:42:30 ago)
Statistics last cleared: Never
Traffic statistics:
Input bytes : 0 0 bps
Output bytes : 1600 0 bps
Input packets: 0 0 pps
Output packets: 18 0 pps
Input errors:
Errors: 0, Drops: 0, Invalid VCs: 0, Framing errors: 0, Policed discards: 0, L3 incompletes: 0,
L2 channel errors: 0, L2 mismatch timeouts: 0
Output errors:
Carrier transitions: 1, Errors: 0, Drops: 0, Aged packets: 0
Queue counters: Queued packets Transmitted packets Dropped packets
0 assured-forw 18 18 0
1 expedited-fo 0 0 0
2 best-effort 0 0 0
3 network-cont 0 0 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 1 13
SEF 0 0 OK
LOS 0 0 OK
LOF 0 0 OK
ES-S 1
SES-S 0
SEFS-S 0
SONET line:
BIP-B2 1 196
REI-L 1 291
RDI-L 0 0 OK
AIS-L 0 0 OK
BERR-SF 0 0 OK
BERR-SD 0 0 OK
ES-L 1
SES-L 0
UAS-L 0
ES-LFE 1
SES-LFE 0
UAS-LFE 0
SONET path:
BIP-B3 1 36
REI-P 1 211
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 1
SES-P 0
UAS-P 0
ES-PFE 1
SES-PFE 0
UAS-PFE 0
Received SONET overhead:
F1 : 0x00, J0 : 0x00, K1 : 0x00, K2 : 0x00
S1 : 0x00, C2 : 0x13, C2(cmp) : 0x13, F2 : 0x00
Z3 : 0x00, Z4 : 0x00, S1(cmp) : 0x00
Transmitted SONET overhead:
F1 : 0x00, J0 : 0x01, K1 : 0x00, K2 : 0x00
S1 : 0x00, C2 : 0x13, F2 : 0x00, Z3 : 0x00
Z4 : 0x00
ATM status:
HCS state: Sync
LOC : OK
ATM Statistics:
Uncorrectable HCS errors: 177, Correctable HCS errors: 3, Tx cell FIFO overruns: 0,
Rx cell FIFO overruns: 0, Rx cell FIFO underruns: 0, Input cell count: 4,
Output cell count: 13785683517, Output idle cell count: 0, Output VC queue drops: 0,
Input no buffers: 0, Input length errors: 0, Input timeouts: 0, Input invalid VCs: 2,
Input bad CRCs: 0, Input OAM cell no buffers: 0
Packet Forwarding Engine configuration:
Destination slot: 2
VPI 1
Flags: Active
Total down time: 0 sec, Last down: Never
Traffic statistics:
Input bytes : 0
Output bytes : 1600
Input packets: 0
Output packets: 18
Logical interface at-2/2/0.100 (Index 67) (SNMP ifIndex 36) (Generation 11)
Flags: Point-To-Multipoint SNMP-Traps Encapsulation: Ether-over-ATM-LLC
Traffic statistics:
Input bytes : 0
Output bytes : 896
Input packets: 0
Output packets: 7
Local statistics:
Input bytes : 0
Output bytes : 896
Input packets: 0
Output packets: 7
Transit statistics:
Input bytes : 0 0 bps
Output bytes : 0 0 bps
Input packets: 0 0 pps
Output packets: 0 0 pps
Protocol inet, MTU: 1500, Generation: 17, Route table: 0
Flags: None
Addresses, Flags: Is-Preferred Is-Primary
Destination: 172.16.5/24, Local: 172.16.5.1, Broadcast: 172.16.5.255, Generation: 16
VCI 1.100
Flags: Active, Shaping, Multicast
VBR, Peak: 66kbps, Sustained: 66kbps, Burst size: 40
Total down time: 0 sec, Last down: Never
EPD threshold: 0, Transmit weight cells: 0
ATM per-VC transmit statistics:
Tail queue packet drops: 0
Traffic statistics:
Input bytes : 0
Output bytes : 1512
Input packets: 0
Output packets: 14
Logical interface at-2/2/0.101 (Index 68) (SNMP ifIndex 37) (Generation 12)
Flags: Point-To-Point SNMP-Traps Encapsulation: ATM-SNAP
Traffic statistics:
Input bytes : 0
Output bytes : 200
Input packets: 0
Output packets: 2
Local statistics:
Input bytes : 0
Output bytes : 200
Input packets: 0
Output packets: 2
Transit statistics:
Input bytes : 0 0 bps
Output bytes : 0 0 bps
Input packets: 0 0 pps
Output packets: 0 0 pps
Protocol inet, MTU: 4470, Generation: 18, Route table: 0
Flags: None
Addresses, Flags: Is-Preferred Is-Primary
Destination: 172.16.250.252/30, Local: 172.16.250.253, Broadcast: 172.16.250.255,
Generation: 18
VCI 1.101
Flags: Active
Total down time: 0 sec, Last down: Never
EPD threshold: 0, Transmit weight cells: 0
ATM per-VC transmit statistics:
Tail queue packet drops: 0
Traffic statistics:
Input bytes : 0
Output bytes : 184
Input packets: 0
Output packets: 2
Logical interface at-2/2/0.200 (Index 69) (SNMP ifIndex 8280) (Generation 13)
Flags: Point-To-Point SNMP-Traps Encapsulation: ATM-SNAP
Traffic statistics:
Input bytes : 0
Output bytes : 0
Input packets: 0
Output packets: 0
Local statistics:
Input bytes : 0
Output bytes : 0
Input packets: 0
Output packets: 0
Transit statistics:
Input bytes : 0 0 bps
Output bytes : 0 0 bps
Input packets: 0 0 pps
Output packets: 0 0 pps
Protocol inet, MTU: 4470, Generation: 19, Route table: 0
Flags: None
Addresses, Flags: Is-Preferred Is-Primary
Destination: 20.20.20.0/30, Local: 20.20.20.1, Broadcast: 20.20.20.3, Generation: 20
VCI 1.200
Flags: Active
Total down time: 0 sec, Last down: Never
EPD threshold: 0, Transmit weight cells: 0
ATM per-VC transmit statistics:
Tail queue packet drops: 0
Traffic statistics:
Input bytes : 0
Output bytes : 0
Input packets: 0
Output packets: 0
Logical interface at-2/2/0.300 (Index 70) (SNMP ifIndex 8281) (Generation 14)
Flags: Point-To-Point SNMP-Traps Encapsulation: ATM-SNAP
Traffic statistics:
Input bytes : 0
Output bytes : 0
Input packets: 0
Output packets: 0
Local statistics:
Input bytes : 0
Output bytes : 0
Input packets: 0
Output packets: 0
Transit statistics:
Input bytes : 0 0 bps
Output bytes : 0 0 bps
Input packets: 0 0 pps
Output packets: 0 0 pps
Protocol inet, MTU: 4470, Generation: 20, Route table: 0
Flags: None
Addresses, Flags: Is-Preferred Is-Primary
Destination: 30.30.30.0/30, Local: 30.30.30.1, Broadcast: 30.30.30.3, Generation: 22
VCI 1.300
Flags: Active
Total down time: 0 sec, Last down: Never
EPD threshold: 0, Transmit weight cells: 0
ATM per-VC transmit statistics:
Tail queue packet drops: 0
Traffic statistics:
Input bytes : 0
Output bytes : 0
Input packets: 0
Output packets: 0
Logical interface at-2/2/0.400 (Index 72) (SNMP ifIndex 8282) (Generation 15)
Flags: Point-To-Point SNMP-Traps Encapsulation: ATM-SNAP
Traffic statistics:
Input bytes : 0
Output bytes : 0
Input packets: 0
Output packets: 0
Local statistics:
Input bytes : 0
Output bytes : 0
Input packets: 0
Output packets: 0
Transit statistics:
Input bytes : 0 0 bps
Output bytes : 0 0 bps
Input packets: 0 0 pps
Output packets: 0 0 pps
Protocol inet, MTU: 4470, Generation: 21, Route table: 0
Flags: None
Addresses, Flags: Is-Preferred Is-Primary
Destination: 40.40.40.0/30, Local: 40.40.40.1, Broadcast: 40.40.40.3, Generation: 24
VCI 1.400
Flags: Active
Total down time: 0 sec, Last down: Never
EPD threshold: 0, Transmit weight cells: 0
ATM per-VC transmit statistics:
Tail queue packet drops: 0
Traffic statistics:
Input bytes : 0
Output bytes : 0
Input packets: 0
Output packets: 0
Logical interface at-2/2/0.32767 (Index 71) (SNMP ifIndex 27) (Generation 9)
Flags: Point-To-Multipoint No-Multicast SNMP-Traps Encapsulation: ATM-VCMUX
Traffic statistics:
Input bytes : 0
Output bytes : 0
Input packets: 0
Output packets: 0
Local statistics:
Input bytes : 0
Output bytes : 0
Input packets: 0
Output packets: 0
VCI 1.4
Flags: Active
Total down time: 0 sec, Last down: Never
EPD threshold: 0, Transmit weight cells: 0
ATM per-VC transmit statistics:
Tail queue packet drops: 0
Traffic statistics:
Input bytes : 0
Output bytes : 0
Input packets: 0
Output packets: 0
Meaning
The sample output is for an OC12 ATM interface and shows the statistics for the SONET media, as well as the Input and Output ATM errors. Error details include input and output errors, active alarms and defects, and media-specific errors.
If the physical link is down, look at the active alarms and defects for the ATM interface and check the ATM media accordingly. See Locate ATM Alarms and Errors for an explanation of ATM alarms.
To monitor statistics for an ATM2 interface, use the following JUNOS CLI operational mode command:
|
Caution: We recommend that you use this command only for diagnostic purposes. Do not leave it on during normal router operations because real-time monitoring of traffic consumes additional CPU and memory resources. |
Sample Output
user@host> monitor interface at-2/2/0host Seconds: 5 Time: 17:16:49
Delay: 3/0/3
Interface: at-2/2/0, Enabled, Link is Up
Encapsulation: ATM-PVC, Speed: OC12
Traffic statistics: Current delta
Input bytes: 0 (0 bps) [0]
Output bytes: 1600 (0 bps) [0]
Input packets: 0 (0 pps) [0]
Output packets: 18 (0 pps) [0]
Error statistics:
Input errors: 0 [0]
Input drops: 0 [0]
Input framing errors: 0 [0]
Policed discards: 0 [0]
L3 incompletes: 0 [0]
L2 channel errors: 0 [0]
L2 mismatch timeouts: 0 [0]
Carrier transitions: 1 [0]
Output errors: 0 [0]
Output drops: 0 [0]
Aged packets: 0 [0]
ATM statistics:
Input cell count 4 [0]
Input invalid vc 2 [0]
Output cell count 13908633088 [8484369]
Output idle cell count 0 [0]
Active alarms : NoneActive defects: NoneSONET error countsZ [0]
Meaning
The sample output checks for and displays common interface failures and any increases in framing errors. Information from this command can help you narrow down possible causes of an interface problem.
 |
Note: If you are accessing the router from the console connection, make sure you set the CLI terminal type using the set cli terminal command. |
