EN ESTA PÁGINA
Ejemplo: configuración del redireccionamiento rápido solo de multidifusión en un dominio LDP multipunto
En este ejemplo se muestra cómo configurar el reenrutamiento rápido solo de multidifusión (MoFRR) para minimizar la pérdida de paquetes en una red cuando hay un error de vínculo.
Multipoint LDP MoFRR se utiliza en el nodo de salida de una red MPLS, donde los paquetes se reenvían a una red IP. En el caso de MoFRR LDP multipunto, las dos rutas hacia el enrutador perimetral del proveedor (PE) ascendente se establecen para recibir dos flujos de paquetes MPLS en el enrutador de borde de etiqueta (LER). Se acepta una de las secuencias (la principal) y la otra (la copia de seguridad) se coloca en el LER. La secuencia de copia de seguridad se acepta si se produce un error en la ruta principal.
Requisitos
No se requiere ninguna configuración especial más allá de la inicialización del dispositivo antes de configurar este ejemplo.
En un dominio LDP multipunto, para que MoFRR funcione, solo el enrutador de PE de salida necesita tener habilitado MoFRR. Los otros enrutadores no necesitan compatibilidad con MoFRR.
MoFRR es compatible con plataformas de la serie MX con tarjetas de línea MPC. Como requisito previo, el enrutador debe estar configurado en network-services enhanced-ip modo y todas las tarjetas de línea de la plataforma deben ser MPC.
Este ejemplo requiere Junos OS versión 14.1 o posterior en el enrutador de PE de salida.
Visión general
En este ejemplo, el dispositivo R3 es el enrutador perimetral de salida. MoFRR solo está habilitado en este dispositivo.
OSPF se utiliza para la conectividad, aunque se puede utilizar cualquier protocolo de puerta de enlace interior (IGP) o rutas estáticas.
Para fines de prueba, los enrutadores se utilizan para simular la fuente y el receptor. Los dispositivos R4 y R8 están configurados para unirse estáticamente al grupo deseado mediante el set protocols igmp interface interface-name static group group comando. En el caso de que no se disponga de un host receptor de multidifusión real, como en este ejemplo, esta configuración IGMP estática es útil. En los receptores, para que escuchen la dirección del grupo de multidifusión, este ejemplo utiliza set protocols sap listen group.
La configuración de MoFRR incluye una opción de política que no se muestra en este ejemplo, pero que se explica por separado. La opción se configura de la siguiente manera:
stream-protection { policy policy-name; }
Topología
La figura 1 muestra la red de ejemplo.
Figura 1: MoFRR en un dominio
LDP multipunto
LDP multipunto
La Configuración rápida de CLI muestra la configuración de todos los dispositivos de la Figura 1.
La sección Configuración describe los pasos del dispositivo R3.
Configuración rápida de CLI
Configuración rápida de CLI
Para configurar rápidamente este ejemplo, copie los siguientes comandos, péguelos en un archivo de texto, elimine los saltos de línea, cambie los detalles necesarios para que coincidan con su configuración de red y, a continuación, copie y pegue los comandos en la CLI en el nivel de [edit] jerarquía.
Dispositivo src1
set interfaces ge-1/2/10 unit 0 description src1-to-R1 set interfaces ge-1/2/10 unit 0 family inet address 10.5.0.1/30 set interfaces ge-1/2/11 unit 0 description src1-to-R1 set interfaces ge-1/2/11 unit 0 family inet address 192.168.219.11/24 set interfaces lo0 unit 0 family inet address 10.0.1.17/32 set protocols ospf area 0.0.0.0 interface all set protocols ospf area 0.0.0.0 interface lo0.0 passive
Dispositivo src2
set interfaces ge-1/2/24 unit 0 description src2-to-R5 set interfaces ge-1/2/24 unit 0 family inet address 10.5.0.2/30 set interfaces lo0 unit 0 family inet address 10.0.1.18/32 set protocols rsvp interface all set protocols ospf area 0.0.0.0 interface all set protocols ospf area 0.0.0.0 interface lo0.0 passive
Dispositivo R1
set interfaces ge-1/2/12 unit 0 description R1-to-R2 set interfaces ge-1/2/12 unit 0 family inet address 10.1.2.1/30 set interfaces ge-1/2/12 unit 0 family mpls set interfaces ge-1/2/13 unit 0 description R1-to-R6 set interfaces ge-1/2/13 unit 0 family inet address 10.1.6.1/30 set interfaces ge-1/2/13 unit 0 family mpls set interfaces ge-1/2/10 unit 0 description R1-to-src1 set interfaces ge-1/2/10 unit 0 family inet address 10.1.0.2/30 set interfaces ge-1/2/11 unit 0 description R1-to-src1 set interfaces ge-1/2/11 unit 0 family inet address 192.168.219.9/30 set interfaces lo0 unit 0 family inet address 10.1.1.1/32 set protocols rsvp interface all set protocols mpls interface all set protocols bgp group ibgp local-address 10.1.1.1 set protocols bgp group ibgp export static-route-tobgp set protocols bgp group ibgp peer-as 65010 set protocols bgp group ibgp neighbor 10.1.1.3 set protocols bgp group ibgp neighbor 10.1.1.7 set protocols ospf traffic-engineering set protocols ospf area 0.0.0.0 interface all set protocols ospf area 0.0.0.0 interface lo0.0 passive set protocols ldp interface ge-1/2/12.0 set protocols ldp interface ge-1/2/13.0 set protocols ldp interface lo0.0 set protocols ldp p2mp set protocols pim mldp-inband-signalling policy mldppim-ex set protocols pim rp static address 10.1.1.5 set protocols pim interface lo0.0 set protocols pim interface ge-1/2/10.0 set protocols pim interface ge-1/2/11.0 set policy-options policy-statement mldppim-ex term B from source-address-filter 192.168.0.0/24 orlonger set policy-options policy-statement mldppim-ex term B from source-address-filter 192.168.219.11/32 orlonger set policy-options policy-statement mldppim-ex term B then p2mp-lsp-root address 10.1.1.2 set policy-options policy-statement mldppim-ex term B then accept set policy-options policy-statement mldppim-ex term A from source-address-filter 10.1.1.7/32 orlonger set policy-options policy-statement mldppim-ex term A from source-address-filter 10.1.0.0/30 orlonger set policy-options policy-statement mldppim-ex term A then accept set policy-options policy-statement static-route-tobgp term static from protocol static set policy-options policy-statement static-route-tobgp term static from protocol direct set policy-options policy-statement static-route-tobgp term static then accept set routing-options autonomous-system 65010
Dispositivo R2
set interfaces ge-1/2/12 unit 0 description R2-to-R1 set interfaces ge-1/2/12 unit 0 family inet address 10.1.2.2/30 set interfaces ge-1/2/12 unit 0 family mpls set interfaces ge-1/2/14 unit 0 description R2-to-R3 set interfaces ge-1/2/14 unit 0 family inet address 10.2.3.1/30 set interfaces ge-1/2/14 unit 0 family mpls set interfaces ge-1/2/16 unit 0 description R2-to-R5 set interfaces ge-1/2/16 unit 0 family inet address 10.2.5.1/30 set interfaces ge-1/2/16 unit 0 family mpls set interfaces ge-1/2/17 unit 0 description R2-to-R7 set interfaces ge-1/2/17 unit 0 family inet address 10.2.7.1/30 set interfaces ge-1/2/17 unit 0 family mpls set interfaces ge-1/2/15 unit 0 description R2-to-R3 set interfaces ge-1/2/15 unit 0 family inet address 10.2.94.1/30 set interfaces ge-1/2/15 unit 0 family mpls set interfaces lo0 unit 0 family inet address 10.1.1.2/32 set interfaces lo0 unit 0 family mpls set protocols rsvp interface all set protocols mpls interface all set protocols ospf traffic-engineering set protocols ospf area 0.0.0.0 interface all set protocols ospf area 0.0.0.0 interface lo0.0 passive set protocols ldp interface all set protocols ldp p2mp set policy-options policy-statement mldppim-ex term B from source-address-filter 192.168.0.0/24 orlonger set policy-options policy-statement mldppim-ex term B from source-address-filter 192.168.219.11/32 orlonger set policy-options policy-statement mldppim-ex term B then p2mp-lsp-root address 10.1.1.2 set policy-options policy-statement mldppim-ex term B then accept set routing-options autonomous-system 65010
Dispositivo R3
set chassis network-services enhanced-ip set interfaces ge-1/2/14 unit 0 description R3-to-R2 set interfaces ge-1/2/14 unit 0 family inet address 10.2.3.2/30 set interfaces ge-1/2/14 unit 0 family mpls set interfaces ge-1/2/18 unit 0 description R3-to-R4 set interfaces ge-1/2/18 unit 0 family inet address 10.3.4.1/30 set interfaces ge-1/2/18 unit 0 family mpls set interfaces ge-1/2/19 unit 0 description R3-to-R6 set interfaces ge-1/2/19 unit 0 family inet address 10.3.6.2/30 set interfaces ge-1/2/19 unit 0 family mpls set interfaces ge-1/2/21 unit 0 description R3-to-R7 set interfaces ge-1/2/21 unit 0 family inet address 10.3.7.1/30 set interfaces ge-1/2/21 unit 0 family mpls set interfaces ge-1/2/22 unit 0 description R3-to-R8 set interfaces ge-1/2/22 unit 0 family inet address 10.3.8.1/30 set interfaces ge-1/2/22 unit 0 family mpls set interfaces ge-1/2/15 unit 0 description R3-to-R2 set interfaces ge-1/2/15 unit 0 family inet address 10.2.94.2/30 set interfaces ge-1/2/15 unit 0 family mpls set interfaces ge-1/2/20 unit 0 description R3-to-R6 set interfaces ge-1/2/20 unit 0 family inet address 10.2.96.2/30 set interfaces ge-1/2/20 unit 0 family mpls set interfaces lo0 unit 0 family inet address 10.1.1.3/32 primary set routing-options autonomous-system 65010 set routing-options multicast stream-protection set protocols rsvp interface all set protocols mpls interface all set protocols bgp group ibgp local-address 10.1.1.3 set protocols bgp group ibgp peer-as 10 set protocols bgp group ibgp neighbor 10.1.1.1 set protocols bgp group ibgp neighbor 10.1.1.5 set protocols ospf traffic-engineering set protocols ospf area 0.0.0.0 interface all set protocols ospf area 0.0.0.0 interface fxp0.0 disable set protocols ospf area 0.0.0.0 interface lo0.0 passive set protocols ldp interface all set protocols ldp p2mp set protocols pim mldp-inband-signalling policy mldppim-ex set protocols pim interface lo0.0 set protocols pim interface ge-1/2/18.0 set protocols pim interface ge-1/2/22.0 set policy-options policy-statement mldppim-ex term B from source-address-filter 192.168.0.0/24 orlonger set policy-options policy-statement mldppim-ex term B from source-address-filter 192.168.219.11/32 orlonger set policy-options policy-statement mldppim-ex term B then accept set policy-options policy-statement mldppim-ex term A from source-address-filter 10.1.0.1/30 orlonger set policy-options policy-statement mldppim-ex term A then accept set policy-options policy-statement static-route-tobgp term static from protocol static set policy-options policy-statement static-route-tobgp term static from protocol direct set policy-options policy-statement static-route-tobgp term static then accept
Dispositivo R4
set interfaces ge-1/2/18 unit 0 description R4-to-R3 set interfaces ge-1/2/18 unit 0 family inet address 10.3.4.2/30 set interfaces ge-1/2/18 unit 0 family mpls set interfaces ge-1/2/23 unit 0 description R4-to-R7 set interfaces ge-1/2/23 unit 0 family inet address 10.4.7.1/30 set interfaces lo0 unit 0 family inet address 10.1.1.4/32 set protocols igmp interface ge-1/2/18.0 version 3 set protocols igmp interface ge-1/2/18.0 static group 232.1.1.1 group-count 2 set protocols igmp interface ge-1/2/18.0 static group 232.1.1.1 source 192.168.219.11 set protocols igmp interface ge-1/2/18.0 static group 232.2.2.2 source 10.2.7.7 set protocols sap listen 232.1.1.1 set protocols sap listen 232.2.2.2 set protocols rsvp interface all set protocols mpls interface all set protocols ospf traffic-engineering set protocols ospf area 0.0.0.0 interface all set protocols ospf area 0.0.0.0 interface lo0.0 passive set protocols pim mldp-inband-signalling policy mldppim-ex set protocols pim interface ge-1/2/23.0 set protocols pim interface ge-1/2/18.0 set protocols pim interface lo0.0 set policy-options policy-statement static-route-tobgp term static from protocol static set policy-options policy-statement static-route-tobgp term static from protocol direct set policy-options policy-statement static-route-tobgp term static then accept set policy-options policy-statement mldppim-ex term B from source-address-filter 192.168.0.0/24 orlonger set policy-options policy-statement mldppim-ex term B from source-address-filter 192.168.219.11/32 orlonger set policy-options policy-statement mldppim-ex term B then p2mp-lsp-root address 10.1.1.2 set policy-options policy-statement mldppim-ex term B then accept set routing-options autonomous-system 65010
Dispositivo R5
set interfaces ge-1/2/24 unit 0 description R5-to-src2 set interfaces ge-1/2/24 unit 0 family inet address 10.5.0.1/30 set interfaces ge-1/2/16 unit 0 description R5-to-R2 set interfaces ge-1/2/16 unit 0 family inet address 10.2.5.2/30 set interfaces ge-1/2/16 unit 0 family mpls set interfaces ge-1/2/25 unit 0 description R5-to-R6 set interfaces ge-1/2/25 unit 0 family inet address 10.5.6.1/30 set interfaces ge-1/2/25 unit 0 family mpls set interfaces lo0 unit 0 family inet address 10.1.1.5/32 set protocols rsvp interface all set protocols mpls interface all set protocols bgp group ibgp local-address 10.1.1.5 set protocols bgp group ibgp export static-route-tobgp set protocols bgp group ibgp peer-as 65010 set protocols bgp group ibgp neighbor 10.1.1.7 set protocols bgp group ibgp neighbor 10.1.1.3 set protocols ospf traffic-engineering set protocols ospf area 0.0.0.0 interface all set protocols ospf area 0.0.0.0 interface lo0.0 passive set protocols ldp interface ge-1/2/16.0 set protocols ldp interface ge-1/2/25.0 set protocols ldp p2mp set protocols pim interface lo0.0 set protocols pim interface ge-1/2/24.0 set policy-options policy-statement static-route-tobgp term static from protocol static set policy-options policy-statement static-route-tobgp term static from protocol direct set policy-options policy-statement static-route-tobgp term static then accept set routing-options autonomous-system 65010
Dispositivo R6
set interfaces ge-1/2/13 unit 0 description R6-to-R1 set interfaces ge-1/2/13 unit 0 family inet address 10.1.6.2/30 set interfaces ge-1/2/13 unit 0 family mpls set interfaces ge-1/2/19 unit 0 description R6-to-R3 set interfaces ge-1/2/19 unit 0 family inet address 10.3.6.1/30 set interfaces ge-1/2/19 unit 0 family mpls set interfaces ge-1/2/25 unit 0 description R6-to-R5 set interfaces ge-1/2/25 unit 0 family inet address 10.5.6.2/30 set interfaces ge-1/2/25 unit 0 family mpls set interfaces ge-1/2/26 unit 0 description R6-to-R7 set interfaces ge-1/2/26 unit 0 family inet address 10.6.7.1/30 set interfaces ge-1/2/26 unit 0 family mpls set interfaces ge-1/2/20 unit 0 description R6-to-R3 set interfaces ge-1/2/20 unit 0 family inet address 10.2.96.1/30 set interfaces ge-1/2/20 unit 0 family mpls set interfaces lo0 unit 0 family inet address 10.1.1.6/30 set protocols rsvp interface all set protocols mpls interface all set protocols ospf traffic-engineering set protocols ospf area 0.0.0.0 interface all set protocols ospf area 0.0.0.0 interface lo0.0 passive set protocols ldp interface all set protocols ldp p2mp
Dispositivo R7
set interfaces ge-1/2/17 unit 0 description R7-to-R2 set interfaces ge-1/2/17 unit 0 family inet address 10.2.7.2/30 set interfaces ge-1/2/17 unit 0 family mpls set interfaces ge-1/2/21 unit 0 description R7-to-R3 set interfaces ge-1/2/21 unit 0 family inet address 10.3.7.2/30 set interfaces ge-1/2/21 unit 0 family mpls set interfaces ge-1/2/23 unit 0 description R7-to-R4 set interfaces ge-1/2/23 unit 0 family inet address 10.4.7.2/30 set interfaces ge-1/2/23 unit 0 family mpls set interfaces ge-1/2/26 unit 0 description R7-to-R6 set interfaces ge-1/2/26 unit 0 family inet address 10.6.7.2/30 set interfaces ge-1/2/26 unit 0 family mpls set interfaces ge-1/2/27 unit 0 description R7-to-R8 set interfaces ge-1/2/27 unit 0 family inet address 10.7.8.1/30 set interfaces ge-1/2/27 unit 0 family mpls set interfaces lo0 unit 0 family inet address 10.1.1.7/32 set protocols rsvp interface all set protocols mpls interface all set protocols bgp group ibgp local-address 10.1.1.7 set protocols bgp group ibgp export static-route-tobgp set protocols bgp group ibgp peer-as 65010 set protocols bgp group ibgp neighbor 10.1.1.5 set protocols bgp group ibgp neighbor 10.1.1.1 set protocols ospf traffic-engineering set protocols ospf area 0.0.0.0 interface all set protocols ospf area 0.0.0.0 interface lo0.0 passive set protocols ldp interface ge-1/2/17.0 set protocols ldp interface ge-1/2/21.0 set protocols ldp interface ge-1/2/26.0 set protocols ldp p2mp set protocols pim mldp-inband-signalling policy mldppim-ex set protocols pim interface lo0.0 set protocols pim interface ge-1/2/27.0 set policy-options policy-statement mldppim-ex term B from source-address-filter 192.168.0.0/24 orlonger set policy-options policy-statement mldppim-ex term B from source-address-filter 192.168.219.11/32 orlonger set policy-options policy-statement mldppim-ex term B then accept set policy-options policy-statement mldppim-ex term A from source-address-filter 10.1.0.1/30 orlonger set policy-options policy-statement mldppim-ex term A then accept set policy-options policy-statement static-route-tobgp term static from protocol static set policy-options policy-statement static-route-tobgp term static from protocol direct set policy-options policy-statement static-route-tobgp term static then accept set routing-options autonomous-system 65010 set routing-options multicast stream-protection policy mldppim-ex
Dispositivo R8
set interfaces ge-1/2/22 unit 0 description R8-to-R3 set interfaces ge-1/2/22 unit 0 family inet address 10.3.8.2/30 set interfaces ge-1/2/22 unit 0 family mpls set interfaces ge-1/2/27 unit 0 description R8-to-R7 set interfaces ge-1/2/27 unit 0 family inet address 10.7.8.2/30 set interfaces ge-1/2/27 unit 0 family mpls set interfaces lo0 unit 0 family inet address 10.1.1.8/32 set protocols igmp interface ge-1/2/22.0 version 3 set protocols igmp interface ge-1/2/22.0 static group 232.1.1.1 group-count 2 set protocols igmp interface ge-1/2/22.0 static group 232.1.1.1 source 192.168.219.11 set protocols igmp interface ge-1/2/22.0 static group 232.2.2.2 source 10.2.7.7 set protocols sap listen 232.1.1.1 set protocols sap listen 232.2.2.2 set protocols rsvp interface all set protocols ospf traffic-engineering set protocols ospf area 0.0.0.0 interface all set protocols ospf area 0.0.0.0 interface lo0.0 passive set protocols pim mldp-inband-signalling policy mldppim-ex set protocols pim interface ge-1/2/27.0 set protocols pim interface ge-1/2/22.0 set protocols pim interface lo0.0 set policy-options policy-statement static-route-tobgp term static from protocol static set policy-options policy-statement static-route-tobgp term static from protocol direct set policy-options policy-statement static-route-tobgp term static then accept set policy-options policy-statement mldppim-ex term B from source-address-filter 192.168.0.0/24 orlonger set policy-options policy-statement mldppim-ex term B from source-address-filter 192.168.219.11/32 orlonger set policy-options policy-statement mldppim-ex term B then p2mp-lsp-root address 10.1.1.2 set policy-options policy-statement mldppim-ex term B then accept set routing-options autonomous-system 65010
Configuración
Procedimiento
Procedimiento paso a paso
El ejemplo siguiente requiere que navegue por varios niveles en la jerarquía de configuración. Para obtener información acerca de cómo navegar por la CLI, consulte Uso del editor de CLI en modo de configuración en la Guía del usuario de CLI de Junos OS.
Para configurar el dispositivo R3:
Habilite el modo IP mejorado.
[edit chassis] user@R3# set network-services enhanced-ip
Configure las interfaces del dispositivo.
[edit interfaces] user@R3# set ge-1/2/14 unit 0 description R3-to-R2 user@R3# set ge-1/2/14 unit 0 family inet address 10.2.3.2/30 user@R3# set ge-1/2/14 unit 0 family mpls user@R3# set ge-1/2/18 unit 0 description R3-to-R4 user@R3# set ge-1/2/18 unit 0 family inet address 10.3.4.1/30 user@R3# set ge-1/2/18 unit 0 family mpls user@R3# set ge-1/2/19 unit 0 description R3-to-R6 user@R3# set ge-1/2/19 unit 0 family inet address 10.3.6.2/30 user@R3# set ge-1/2/19 unit 0 family mpls user@R3# set ge-1/2/21 unit 0 description R3-to-R7 user@R3# set ge-1/2/21 unit 0 family inet address 10.3.7.1/30 user@R3# set ge-1/2/21 unit 0 family mpls user@R3# set ge-1/2/22 unit 0 description R3-to-R8 user@R3# set ge-1/2/22 unit 0 family inet address 10.3.8.1/30 user@R3# set ge-1/2/22 unit 0 family mpls user@R3# set ge-1/2/15 unit 0 description R3-to-R2 user@R3# set ge-1/2/15 unit 0 family inet address 10.2.94.2/30 user@R3# set ge-1/2/15 unit 0 family mpls user@R3# set ge-1/2/20 unit 0 description R3-to-R6 user@R3# set ge-1/2/20 unit 0 family inet address 10.2.96.2/30 user@R3# set ge-1/2/20 unit 0 family mpls user@R3# set lo0 unit 0 family inet address 10.1.1.3/32 primary
Configure el número de sistema autónomo (AS).
user@R3# set routing-options autonomous-system 6510
Configure las directivas de enrutamiento.
[edit policy-options policy-statement mldppim-ex] user@R3# set term B from source-address-filter 192.168.0.0/24 orlonger user@R3# set term B from source-address-filter 192.168.219.11/32 orlonger user@R3# set term B then accept user@R3# set term A from source-address-filter 10.1.0.1/30 orlonger user@R3# set term A then accept [edit policy-options policy-statement static-route-tobgp] user@R3# set term static from protocol static user@R3# set term static from protocol direct user@R3# set term static then accept
Configure PIM.
[edit protocols pim] user@R3# set mldp-inband-signalling policy mldppim-ex user@R3# set interface lo0.0 user@R3# set interface ge-1/2/18.0 user@R3# set interface ge-1/2/22.0
Configure LDP.
[edit protocols ldp] user@R3# set interface all user@R3# set p2mp
Configure un IGP o rutas estáticas.
[edit protocols ospf] user@R3# set traffic-engineering user@R3# set area 0.0.0.0 interface all user@R3# set area 0.0.0.0 interface fxp0.0 disable user@R3# set area 0.0.0.0 interface lo0.0 passive
Configure el BGP interno.
[edit protocols bgp group ibgp] user@R3# set local-address 10.1.1.3 user@R3# set peer-as 65010 user@R3# set neighbor 10.1.1.1 user@R3# set neighbor 10.1.1.5
Configure MPLS y, opcionalmente, RSVP.
[edit protocols mpls] user@R3# set interface all [edit protocols rsvp] user@R3# set interface all
Habilite MoFRR.
[edit routing-options multicast] user@R3# set stream-protection
Resultados
Desde el modo de configuración, escriba los comandos , show interfaces, show policy-optionsshow protocols, y show routing-options para confirmar la show chassisconfiguración. Si el resultado no muestra la configuración deseada, repita las instrucciones de este ejemplo para corregir la configuración.
user@R3# show chassis network-services enhanced-ip;
user@R3# show interfaces
ge-1/2/14 {
unit 0 {
description R3-to-R2;
family inet {
address 10.2.3.2/30;
}
family mpls;
}
}
ge-1/2/18 {
unit 0 {
description R3-to-R4;
family inet {
address 10.3.4.1/30;
}
family mpls;
}
}
ge-1/2/19 {
unit 0 {
description R3-to-R6;
family inet {
address 10.3.6.2/30;
}
family mpls;
}
}
ge-1/2/21 {
unit 0 {
description R3-to-R7;
family inet {
address 10.3.7.1/30;
}
family mpls;
}
}
ge-1/2/22 {
unit 0 {
description R3-to-R8;
family inet {
address 10.3.8.1/30;
}
family mpls;
}
}
ge-1/2/15 {
unit 0 {
description R3-to-R2;
family inet {
address 10.2.94.2/30;
}
family mpls;
}
}
ge-1/2/20 {
unit 0 {
description R3-to-R6;
family inet {
address 10.2.96.2/30;
}
family mpls;
}
}
lo0 {
unit 0 {
family inet {
address 192.168.15.1/32;
address 10.1.1.3/32 {
primary;
}
}
}
}
user@R3# show protocols
rsvp {
interface all;
}
mpls {
interface all;
}
bgp {
group ibgp {
local-address 10.1.1.3;
peer-as 65010;
neighbor 10.1.1.1;
neighbor 10.1.1.5;
}
}
ospf {
traffic-engineering;
area 0.0.0.0 {
interface all;
interface fxp0.0 {
disable;
}
interface lo0.0 {
passive;
}
}
}
ldp {
interface all;
p2mp;
}
pim {
mldp-inband-signalling {
policy mldppim-ex;
}
interface lo0.0;
interface ge-1/2/18.0;
interface ge-1/2/22.0;
}
user@R3# show policy-options
policy-statement mldppim-ex {
term B {
from {
source-address-filter 192.168.0.0/24 orlonger;
source-address-filter 192.168.219.11/32 orlonger;
}
then accept;
}
term A {
from {
source-address-filter 10.1.0.1/30 orlonger;
}
then accept;
}
}
policy-statement static-route-tobgp {
term static {
from protocol [ static direct ];
then accept;
}
}
user@R3# show routing-options
autonomous-system 65010;
multicast {
stream-protection;
}
Si ha terminado de configurar el dispositivo, ingrese commit desde el modo de configuración.
Verificación
Confirme que la configuración funciona correctamente.
- Comprobación de las clases de equivalencia de reenvío punto a multipunto de LDP
- Examinar la información de la etiqueta
- Comprobación de las rutas de multidifusión
- Comprobación de las estadísticas de tráfico punto a multipunto de LDP
Comprobación de las clases de equivalencia de reenvío punto a multipunto de LDP
Propósito
Asegúrese de que el MoFRR esté habilitado y determine qué etiquetas se están utilizando.
Acción
user@R3> show ldp p2mp fec LDP P2MP FECs: P2MP root-addr 10.1.1.1, grp: 232.1.1.1, src: 192.168.219.11 MoFRR enabled Fec type: Egress (Active) Label: 301568 P2MP root-addr 10.1.1.1, grp: 232.1.1.2, src: 192.168.219.11 MoFRR enabled Fec type: Egress (Active) Label: 301600
Significado
El resultado muestra que MoFRR está habilitado y muestra que las etiquetas 301568 y 301600 se están utilizando para los dos LSP punto a multipunto del LDP multipunto.
Examinar la información de la etiqueta
Propósito
Asegúrese de que el dispositivo de salida tiene dos interfaces ascendentes para la unión de grupo de multidifusión.
Acción
user@R3> show route label 301568 detail
mpls.0: 18 destinations, 18 routes (18 active, 0 holddown, 0 hidden)
301568 (1 entry, 1 announced)
*LDP Preference: 9
Next hop type: Flood
Address: 0x2735208
Next-hop reference count: 3
Next hop type: Router, Next hop index: 1397
Address: 0x2735d2c
Next-hop reference count: 3
Next hop: 10.3.8.2 via ge-1/2/22.0
Label operation: Pop
Load balance label: None;
Next hop type: Router, Next hop index: 1395
Address: 0x2736290
Next-hop reference count: 3
Next hop: 10.3.4.2 via ge-1/2/18.0
Label operation: Pop
Load balance label: None;
State: <Active Int AckRequest MulticastRPF>
Local AS: 65010
Age: 54:05 Metric: 1
Validation State: unverified
Task: LDP
Announcement bits (1): 0-KRT
AS path: I
FECs bound to route: P2MP root-addr 10.1.1.1, grp: 232.1.1.1, src: 192.168.219.11
Primary Upstream : 10.1.1.3:0--10.1.1.2:0
RPF Nexthops :
ge-1/2/15.0, 10.2.94.1, Label: 301568, weight: 0x1
ge-1/2/14.0, 10.2.3.1, Label: 301568, weight: 0x1
Backup Upstream : 10.1.1.3:0--10.1.1.6:0
RPF Nexthops :
ge-1/2/20.0, 10.2.96.1, Label: 301584, weight: 0xfffe
ge-1/2/19.0, 10.3.6.1, Label: 301584, weight: 0xfffe
user@R3> show route label 301600 detail
mpls.0: 18 destinations, 18 routes (18 active, 0 holddown, 0 hidden)
301600 (1 entry, 1 announced)
*LDP Preference: 9
Next hop type: Flood
Address: 0x27356b4
Next-hop reference count: 3
Next hop type: Router, Next hop index: 1520
Address: 0x27350f4
Next-hop reference count: 3
Next hop: 10.3.8.2 via ge-1/2/22.0
Label operation: Pop
Load balance label: None;
Next hop type: Router, Next hop index: 1481
Address: 0x273645c
Next-hop reference count: 3
Next hop: 10.3.4.2 via ge-1/2/18.0
Label operation: Pop
Load balance label: None;
State: <Active Int AckRequest MulticastRPF>
Local AS: 65010
Age: 54:25 Metric: 1
Validation State: unverified
Task: LDP
Announcement bits (1): 0-KRT
AS path: I
FECs bound to route: P2MP root-addr 10.1.1.1, grp: 232.1.1.2, src: 192.168.219.11
Primary Upstream : 10.1.1.3:0--10.1.1.6:0
RPF Nexthops :
ge-1/2/20.0, 10.2.96.1, Label: 301600, weight: 0x1
ge-1/2/19.0, 10.3.6.1, Label: 301600, weight: 0x1
Backup Upstream : 10.1.1.3:0--1.1.1.2:0
RPF Nexthops :
ge-1/2/15.0, 10.2.94.1, Label: 301616, weight: 0xfffe
ge-1/2/14.0, 10.2.3.1, Label: 301616, weight: 0xfffe
Significado
El resultado muestra las rutas ascendentes primarias y las rutas ascendentes de reserva. También muestra los siguientes saltos del FPR.
Comprobación de las rutas de multidifusión
Propósito
Examine la tabla de reenvío de multidifusión IP para asegurarse de que hay una lista de interfaces RPF ascendentes, con una interfaz principal y una interfaz de reserva.
Acción
user@R3> show ldp p2mp path
P2MP path type: Transit/Egress
Output Session (label): 10.1.1.2:0 (301568) (Primary)
Egress Nexthops: Interface ge-1/2/18.0
Interface ge-1/2/22.0
RPF Nexthops: Interface ge-1/2/15.0, 10.2.94.1, 301568, 1
Interface ge-1/2/20.0, 10.2.96.1, 301584, 65534
Interface ge-1/2/14.0, 10.2.3.1, 301568, 1
Interface ge-1/2/19.0, 10.3.6.1, 301584, 65534
Attached FECs: P2MP root-addr 10.1.1.1, grp: 232.1.1.1, src: 192.168.219.11 (Active)
P2MP path type: Transit/Egress
Output Session (label): 10.1.1.6:0 (301584) (Backup)
Egress Nexthops: Interface ge-1/2/18.0
Interface ge-1/2/22.0
RPF Nexthops: Interface ge-1/2/15.0, 10.2.94.1, 301568, 1
Interface ge-1/2/20.0, 10.2.96.1, 301584, 65534
Interface ge-1/2/14.0, 10.2.3.1, 301568, 1
Interface ge-1/2/19.0, 10.3.6.1, 301584, 65534
Attached FECs: P2MP root-addr 10.1.1.1, grp: 232.1.1.1, src: 192.168.219.11 (Active)
P2MP path type: Transit/Egress
Output Session (label): 10.1.1.6:0 (301600) (Primary)
Egress Nexthops: Interface ge-1/2/18.0
Interface ge-1/2/22.0
RPF Nexthops: Interface ge-1/2/15.0, 10.2.94.1, 301616, 65534
Interface ge-1/2/20.0, 10.2.96.1, 301600, 1
Interface ge-1/2/14.0, 10.2.3.1, 301616, 65534
Interface ge-1/2/19.0, 10.3.6.1, 301600, 1
Attached FECs: P2MP root-addr 10.1.1.1, grp: 232.1.1.2, src: 192.168.219.11 (Active)
P2MP path type: Transit/Egress
Output Session (label): 10.1.1.2:0 (301616) (Backup)
Egress Nexthops: Interface ge-1/2/18.0
Interface ge-1/2/22.0
RPF Nexthops: Interface ge-1/2/15.0, 10.2.94.1, 301616, 65534
Interface ge-1/2/20.0, 10.2.96.1, 301600, 1
Interface ge-1/2/14.0, 10.2.3.1, 301616, 65534
Interface ge-1/2/19.0, 10.3.6.1, 301600, 1
Attached FECs: P2MP root-addr 10.1.1.1, grp: 232.1.1.2, src: 192.168.219.11 (Active)
Significado
El resultado muestra las sesiones principales y de copia de seguridad, y los siguientes saltos del RPF.
Comprobación de las estadísticas de tráfico punto a multipunto de LDP
Propósito
Asegúrese de que se enumeran las estadísticas principales y de respaldo.
Acción
user@R3> show ldp traffic-statistics p2mp
P2MP FEC Statistics:
FEC(root_addr:lsp_id/grp,src) Nexthop Packets Bytes Shared
10.1.1.1:232.1.1.1,192.168.219.11, Label: 301568
10.3.8.2 0 0 No
10.3.4.2 0 0 No
10.1.1.1:232.1.1.1,192.168.219.11, Label: 301584, Backup route
10.3.4.2 0 0 No
10.3.8.2 0 0 No
10.1.1.1:232.1.1.2,192.168.219.11, Label: 301600
10.3.8.2 0 0 No
10.3.4.2 0 0 No
10.1.1.1:232.1.1.2,192.168.219.11, Label: 301616, Backup route
10.3.4.2 0 0 No
10.3.8.2 0 0 No
Significado
El resultado muestra las rutas principales y de respaldo con las etiquetas.