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CLI-based Configuration Guide - IP Multicast

AR120, AR150, AR160, AR200, AR1200, AR2200, AR3200, and AR3600 V200R007

This document describes the principles and configurations of IP multicast, and provides configuration examples.
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Checking the Configuration

Checking the Configuration

After configuring Inter-AS MVPN, you can view the PIM routing table, PIM neighbors, source-specific or source/group-specific RPF routes, and MTIs of a specific VPN instance on a PE device. This ensures correct multicast data transmission between VPN instances.

Procedure

  • Run the display pim routing-table rpf-vector [ vector-address ] command to check the PIM routing table.
  • Run the display pim [ vpn-instance vpn-instance-name ] neighbor [ neighbor-address | interface interface-type interface-number | verbose ] * command to check PIM neighbors.
  • Run the display multicast [ vpn-instance vpn-instance-name | all-instance ] rpf-info source-address [ group-address ] rd command to check a source-specific or source/group-specific RPF route.
  • Run the display pim [ vpn-instance vpn-instance-name | all-instance ] interface [ interface-type interface-number | up | down ] [ verbose ] command to check MTIs of a specific VPN instance.

Example

Run the display pim routing-table rpf-vector command to view the PIM routing table of the public network instance when PIM RPF Vector is enabled. The command output shows that a PIM RPF Vector-enabled entry exists.

<Huawei> display pim routing-table rpf-vector
VPN-Instance: public net
 Total 0 (*, G) entry; 4 (S, G) entry
 Total matched 0 (*, G) entry; 1 (S, G) entries 
 (192.168.0.12, 227.0.0.1)
     RP: 2.2.2.2
     Protocol: pim-sm, Flag: SPT LOC ACT
     UpTime: 02:54:43
     Upstream interface: GigabitEthernet1/3/1 
         RPF vector: 55:11111/5.5.5.5
         Upstream neighbor: NULL
         RPF prime neighbor: NULL
     Downstream interface(s) information:
     Total number of downstreams: 2
         1: GigabitEthernet1/3/2
             Protocol: pim-sm, UpTime: 02:54:43, Expires: 00:02:47
             Total number of vectors: 2
                 1: vector: 55:11111/5.5.5.5, neighbor: 10.0.3.5
                 2: vector: 55:11111/6.6.6.6, neighbor: 10.0.3.6         
         2: GigabitEthernet1/3/3
             Protocol: pim-sm, UpTime: 02:50:32, Expires: 00:06:58
             Total number of vectors: 1
                 1: vector: 55:11111/5.5.5.5, neighbor: 10.0.2.5

Run the display pim neighbor 10.1.1.2 verbose command to view the PIM neighbor at 10.1.1.2. The command output shows that the PIM RPF Vector function has been enabled on the router at 10.1.1.2.

<Huawei> display pim neighbor 10.1.1.2 verbose
VPN-Instance: public net
 Neighbor: 10.1.1.2
     Interface: GigabitEthernet1/3/0
     Uptime: 02:53:50
     Expiry time: 00:01:30
     DR Priority: 1
     Generation ID: 0X90B0360B
     Holdtime: 105 s
     LAN delay: 500 ms
     Override interval: 2500 ms
     PIM BFD-Session: Y
     PIM BFD-Session min-tx-interval: 1000 ms
     PIM BFD-Session min-rx-interval: 1000 ms
     PIM BFD-Session detect-multiplier: 3
     PIM join attribute: enabled

Run the display multicast rpf-info 192.168.0.1 232.1.1.1 rd command to view information about the RPF route and RFP vector relevant to the (192.168.0.1, 232.1.1.1) entry in the public network instance. The command output shows that the RPF vector of the (192.168.0.1, 232.1.1.1) entry is 55:11111/10.5.0.5.

<Huawei> display multicast rpf-info 192.168.0.1 232.1.1.1 rd
VPN-Instance: public net
RPF information about source 192.168.0.1 and group 232.1.1.1
     RPF interface: Ethernet6/0/0, RPF neighbor: 11.1.5.2
     Referenced route/mask: 192.168.0.0/24
     Referenced route type: unicast
     Route selection rule: preference-preferred
     Load splitting rule: disabled
RPF vector information about source 192.168.0.1 and group 232.1.1.1
     RPF interface: Ethernet6/0/0, RPF neighbor: 11.1.5.2
     Referenced route/mask: 10.5.0.0/24
     Referenced route type: unicast
     Route selection rule: preference-preferred
     Load splitting rule: disabled
     RPF vector: 55:11111/10.5.0.5

Run the display pim interface gigabitethernet1/3/0 verbose command to view detailed PIM configurations of GE 1/3/0. The command output shows that the PIM RPF Vector function has been enabled on GE 1/3/0.

<Huawei> display pim interface gigabitethernet1/3/0 verbose
VPN-Instance: public net
 Interface: GigabitEthernet1/3/0, 10.1.1.1
     PIM version: 2
     PIM mode: Sparse
     PIM state: up
     PIM DR: 10.1.1.2
     PIM DR Priority (configured): 1
     PIM neighbor count: 1
     PIM hello interval: 30 s
     PIM LAN delay (negotiated): 500 ms
     PIM LAN delay (configured): 500 ms
     PIM hello override interval (negotiated): 2500 ms
     PIM hello override interval (configured): 2500 ms 
     PIM Silent: enabled 
     PIM neighbor tracking (negotiated): enabled
     PIM neighbor tracking (configured): enabled
     PIM join attribute (negotiated): enabled
     PIM generation ID: 0XF5712241 
     PIM require-GenID: disabled   
     PIM hello hold interval: 105 s
     PIM assert hold interval: 180 s
     PIM triggered hello delay: 5 s
     PIM J/P interval: 60 s
     PIM J/P hold interval: 210 s 
     PIM BSR domain border: disabled
     PIM BFD: enabled
     PIM BFD min-tx-interval: 10 ms
     PIM BFD min-rx-interval: 10 ms
     PIM BFD detect-multiplier: 3
     PIM dr-switch-delay timer : 20 s
     Number of routers on link not using DR priority: 0
     Number of routers on link not using LAN delay: 0
     Number of routers on link not using neighbor tracking: 2
     ACL of PIM neighbor policy: myacl
     ACL of PIM ASM join policy: 2000
     ACL of PIM SSM join policy: - 
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Updated: 2019-06-12

Document ID: EDOC1000097181

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