EN ESTA PÁGINA
Configuración de SCU
Configuración de SCU
Figura 1 muestra una configuración básica de SCU con tres enrutadores. Los enrutadores de origen A y B usan direcciones de circuito cerrado como los prefijos que se supervisarán. La mayoría de las tareas de configuración y monitoreo real se producen en el enrutador de tránsito SCU.
Comience su configuración en el enrutador A. La dirección de circuito cerrado del enrutador A contiene el origen del prefijo que se asignará a la clase de origen A en la SCU del enrutador. Sin embargo, no se produce ningún procesamiento de SCU en este enrutador. Por lo tanto, configure el enrutador A para el enrutamiento OSPF básico e incluya su interfaz e interfaz so-0/0/2 de circuito cerrado en el proceso OSPF.
Enrutador A:
[edit]
interfaces {
so-0/0/2 {
unit 0 {
family inet {
address 10.255.50.2/24;
}
}
}
lo0 {
unit 0 {
family inet {
address 10.255.192.10/32;
}
}
}
}
protocols {
ospf {
area 0.0.0.0 {
interface so-0/0/2.0;
interface lo0.0;
}
}
}
La SCU del enrutador controla la mayor parte de la actividad en este ejemplo. En la SCU del enrutador, habilite el uso de clase de origen en las interfaces de entrada y salida en el [edit interfaces interface-name unit unit-number family inet accounting] nivel jerárquico. Asegúrese de especificar el tráfico esperado: entrada, salida o, en este caso, ambos.
A continuación, configure una instrucción de política de filtro de ruta que coincida con los prefijos de las direcciones de circuito cerrado de enrutadores A y B. Incluya instrucciones en la política que clasifique paquetes del enrutador A en un grupo denominado scu-class-a y paquetes del enrutador B en una segunda clase denominada scu-class-b. Observe el uso eficiente de una sola política que contiene varios términos.
Por último, aplique la política a la tabla de reenvío.
SCU del enrutador
[edit]
interfaces {
so-0/0/1 {
unit 0 {
family inet {
accounting {
source-class-usage {
input;
output;
}
}
address 10.255.50.1/24;
}
}
}
so-0/0/3 {
unit 0 {
family inet {
accounting {
source-class-usage {
input;
output;
}
}
address 10.255.10.3/24;
}
}
}
lo0 {
unit 0 {
family inet {
address 10.255.6.111/32;
}
}
}
}
protocols {
ospf {
area 0.0.0.0 {
interface so-0/0/1.0;
interface so-0/0/3.0;
}
}
}
routing-options {
forwarding-table {
export scu-policy;
}
}
policy-options {
policy-statement scu-policy {
term 0 {
from {
route-filter 10.255.192.0/24 orlonger;
}
then source-class scu-class-a;
}
term 1 {
from {
route-filter 10.255.165.0/24 orlonger;
}
then source-class scu-class-b;
}
}
}
Complete las tareas de configuración en el enrutador B. Así como el enrutador A proporciona un prefijo de origen, la dirección de circuito cerrado del enrutador B coincide con el prefijo asignado al scu-class-b enrutador SCU. Una vez más, no se produce ningún procesamiento de SCU en este enrutador, así que configure el enrutador B para el enrutamiento OSPF básico e incluya su interfaz de circuito cerrado y su interfaz so-0/0/4 en el proceso OSPF.
Enrutador B:
[edit]
interfaces {
so-0/0/4 {
unit 0 {
family inet {
address 10.255.10.4/24;
}
}
}
lo0 {
unit 0 {
family inet {
address 10.255.165.226/32;
}
}
}
}
protocols {
ospf {
area 0.0.0.0 {
interface so-0/0/4.0;
interface lo0.0;
}
}
}
Verificar su trabajo
Para comprobar que la SCU funciona correctamente, utilice los siguientes comandos:
show interfaces interface-name statisticsshow interfaces interface-name(extensive|detail)show route(extensive|detail)show interfaces source-class source-class-name interface-nameclear interface interface-name statistics
Siempre debe verificar las estadísticas de SCU en la interfaz SCU saliente en la que configuró la output instrucción. Puede realizar los tres pasos siguientes para comprobar la funcionalidad de la SCU:
Desactive todos los contadores en su enrutador habilitado para SCU y verifique que estén vacíos.
Envíe un ping desde un enrutador de borde a otro para generar tráfico de SCU en el enrutador habilitado para SCU.
Compruebe que los contadores se incrementan correctamente en la interfaz saliente.
En la siguiente sección se muestra el resultado de estos comandos como se usó con el ejemplo de configuración.
user@scu> clear interfaces statistics all
user@scu> show interfaces so-0/0/1.0 statistics
Logical interface so-0/0/1.0 (Index 4) (SNMP ifIndex 119)
Flags: Point-To-Point SNMP-Traps Encapsulation: PPP
Protocol inet, MTU: 4470
Source class Packets Bytes
scu-class-a 0 0
scu-class-b 0 0
Addresses, Flags: Is-Preferred Is-Primary
Destination: 10.255.50/24, Local: 10.255.50.1
user@scu> show interfaces so-0/0/3.0 statistics
Logical interface so-0/0/3.0 (Index 6) (SNMP ifIndex 113)
Flags: Point-To-Point SNMP-Traps Encapsulation: PPP
Protocol inet, MTU: 4470
Source class Packets Bytes
scu-class-a 0 0
scu-class-b 0 0
Addresses, Flags: Is-Preferred Is-Primary
Destination: 10.255.10/24, Local: 10.255.10.3
user@scu> show interfaces source-class scu-class-a so-0/0/3.0
Protocol inet
Source class Packets Bytes
scu-class-a 0 0
user@scu> show interfaces source-class scu-class-b so-0/0/1.0
Protocol inet
Source class Packets Bytes
scu-class-b 0 0
user@routerB> ping 10.255.192.10 source 10.255.165.226 rapid 10000
user@routerA> ping 10.255.165.226 source 10.255.192.10 rapid 10000
user@scu> show interfaces source-class scu-class-a so-0/0/3.0
Protocol inet
Source class Packets Bytes
scu-class-a 20000 1680000
user@scu> show interfaces source-class scu-class-a so-0/0/1.0
Protocol inet
Source class Packets Bytes
scu-class-b 20000 1680000
user@scu> show interfaces so-0/0/3.0 statistics
Logical interface so-0/0/3.0 (Index 6) (SNMP ifIndex 113)
Flags: Point-To-Point SNMP-Traps Encapsulation: PPP
Protocol inet, MTU: 4470
Source class Packets Bytes
scu-class-a 20000 1680000
scu-class-b 0 0
Addresses, Flags: Is-Preferred Is-Primary
Destination: 10.255.10/24, Local: 10.255.10.3
user@scu> show interfaces so-0/0/1.0 statistics
Logical interface so-0/0/1.0 (Index 4) (SNMP ifIndex 119)
Flags: Point-To-Point SNMP-Traps Encapsulation: PPP
Protocol inet, MTU: 4470
Source class Packets Bytes
scu-class-a 0 0
scu-class-b 20000 1680000
Addresses, Flags: Is-Preferred Is-Primary
Destination: 10.255.50/24, Local: 10.255.50.1
user@scu> show route extensive 10.255.192.0
inet.0: 26 destinations, 28 routes (25 active, 0 holddown, 1 hidden)
10.255.192.0/18 (1 entry, 1 announced)
TSI:
KRT in-kernel 10.255.192.0/18 -> {so-0/0/1.0}
Source class: scu-class-a
*OSPF Preference: 150
Next hop: via so-0/0/1.0, selected
State: <Active Int Ext>
Age: 2:49:31 Metric: 0 Tag: 0
Task: OSPF
Announcement bits (1): 0-KRT
AS path: I
user@scu> show route extensive 10.255.165.0
inet.0: 26 destinations, 28 routes (25 active, 0 holddown, 1 hidden)
10.255.165.0/20 (1 entry, 1 announced)
TSI:
KRT in-kernel 10.255.165.0/20 -> {so-0/0/3.0}
Source class: scu-class-b
*OSPF Preference: 150
Next hop: via so-0/0/3.0, selected
State: <Active Int Ext>
Age: 2:49:31 Metric: 0 Tag: 0
Task: OSPF
Announcement bits (1): 0-KRT
AS path: I
user@scu> show interfaces so-0/0/1 detail
Physical interface: so-0/0/1, Enabled, Physical link is Up
Interface index: 12, SNMP ifIndex: 17, Generation: 11
Link-level type: PPP, MTU: 4474, Clocking: Internal, SONET mode, Speed: OC3,
Loopback: None, FCS: 16, Payload scrambler: Enabled
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 : 46 (last seen 00:00:01 ago)
Output: 45 (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 : 2002-04-19 11:49:22 PDT (03:10:09 ago)
Statistics last cleared: 2002-04-19 14:52:04 PDT (00:07:27 ago)
Traffic statistics:
Input bytes : 1689276 40 bps
Output bytes : 1689747 48 bps
Input packets: 20197 0 pps
Output packets: 20200 0 pps
Queue counters: Queued packets Transmitted packets Dropped packets
0 best-effort 20053 20053 0
1 expedited-fo 0 0 0
2 assured-forw 0 0 0
3 network-cont 146 146 0
SONET alarms : None
SONET defects : None
Logical interface so-0/0/1.0 (Index 4) (SNMP ifIndex 119) (Generation 3)
Flags: Point-To-Point SNMP-Traps Encapsulation: PPP
Protocol inet, MTU: 4470
Flags: SCU-in, SCU-out
Generation: 6 Route table: 0
Source class Packets Bytes
scu-class-a 0 0
scu-class-b 20000 1680000
Filters: Input: icmp-so-0/0/1.0-i, Output: icmp-so-0/0/1.0-o
Addresses, Flags: Is-Preferred Is-Primary
Destination: 10.255.50/24, Local: 10.255.50.1, Broadcast: Unspecified,
Generation: 8
user@scu> show interfaces so-0/0/1 extensive
Physical interface: so-0/0/1, Enabled, Physical link is Up
Interface index: 12, SNMP ifIndex: 17, Generation: 11
Link-level type: PPP, MTU: 4474, Clocking: Internal, SONET mode, Speed: OC3,
Loopback: None, FCS: 16, Payload scrambler: Enabled
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 : 51 (last seen 00:00:04 ago)
Output: 50 (last sent 00:00:05 ago)
LCP state: Opened
NCP state: inet: Opened, inet6: Not-configured, iso: Not-configured, mpls:
Not-configured
CHAP state: Not-configured
Last flapped : 2002-04-19 11:49:22 PDT (03:11:05 ago)
Statistics last cleared: 2002-04-19 14:52:04 PDT (00:08:23 ago)
Traffic statistics:
Input bytes : 1689884 264 bps
Output bytes : 1690388 280 bps
Input packets: 20215 0 pps
Output packets: 20217 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
Queue counters: Queued packets Transmitted packets Dropped packets
0 best-effort 20053 20053 0
1 expedited-fo 0 0 0
2 assured-forw 0 0 0
3 network-cont 164 164 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 0 0
SEF 0 0 OK
LOS 0 0 OK
LOF 0 0 OK
ES-S 0
SES-S 0
SEFS-S 0
SONET line:
BIP-B2 0 0
REI-L 0 0
RDI-L 0 0 OK
AIS-L 0 0 OK
BERR-SF 0 0 OK
BERR-SD 0 0 OK
ES-L 0
SES-L 0
UAS-L 0
ES-LFE 0
SES-LFE 0
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 : 0xcf, C2(cmp) : 0xcf, F2 : 0x00
Z3 : 0x00, Z4 : 0x00, S1(cmp) : 0x00, V5 : 0x00
V5(cmp) : 0x00
Transmitted SONET overhead:
F1 : 0x00, J0 : 0x01, K1 : 0x00, K2 : 0x00
S1 : 0x00, C2 : 0xcf, F2 : 0x00, Z3 : 0x00
Z4 : 0x00, V5 : 0x00
Received path trace: e so-0/0/1
65 20 73 6f 2d 30 2f 30 2f 31 00 00 00 00 00 00 e so-0/0/1......
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 00 0d 0a ................
Transmitted path trace: scu so-0/0/1
67 68 62 20 73 6f 2d 30 2f 30 2f 31 00 00 00 00 scu so-0/0/1....
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 00 00 00 ................
HDLC configuration:
Policing bucket: Disabled
Shaping bucket : Disabled
Giant threshold: 4484, Runt threshold: 3
Packet Forwarding Engine configuration:
Destination slot: 0, PLP byte: 1 (0x00)
CoS transmit queue Bandwidth Buffer Priority Limit
% bps % bytes
0 best-effort 0 0 0 0 low none
1 expedited-forwarding 0 0 0 0 low none
2 assured-forwarding 0 0 0 0 low none
3 network-control 0 0 0 0 low none
Logical interface so-0/0/1.0 (Index 4) (SNMP ifIndex 119) (Generation 3)
Flags: Point-To-Point SNMP-Traps Encapsulation: PPP
Protocol inet, MTU: 4470
Flags: SCU-in, SCU-out
Generation: 6 Route table: 0
Source class Packets Bytes
scu-class-a 0 0
scu-class-b 20000 1680000
Filters: Input: icmp-so-0/0/1.0-i, Output: icmp-so-0/0/1.0-o
Addresses, Flags: Is-Preferred Is-Primary
Destination: 10.255.50/24, Local: 10.255.50.1, Broadcast: Unspecified,
Generation: 8