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Configuration Guide - IP Multicast

CloudEngine 8800, 7800, 6800, and 5800 V200R005C10

This document describes the configurations of IP multicast, including IP multicast basics, IGMP, MLD, PIM (IPv4), PIM (IPv6), MSDP, multicast VPN, multicast route management (IPv4), multicast route management (IPv6), IGMP snooping, MLD snooping, static multicast MAC address, multicast VLAN, multicast network management.
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Huawei uses machine translation combined with human proofreading to translate this document to different languages in order to help you better understand the content of this document. Note: Even the most advanced machine translation cannot match the quality of professional translators. Huawei shall not bear any responsibility for translation accuracy and it is recommended that you refer to the English document (a link for which has been provided).
Example for Configuring Anycast RP Using IPv4 PIM

Example for Configuring Anycast RP Using IPv4 PIM

Networking Requirements

HostA and HostB in Network diagram for configuring Anycast RP using IPv4 PIM receive VoD information in multicast mode. When the network is overloaded or traffic is concentrated on a rendezvous point (RP), the RP may be overburdened or fails and the route convergence may be slow. HostB is required to join the closest RP to fast receive the multicast data.

Figure 4-28 Network diagram for configuring Anycast RP using IPv4 PIM

Configuration Roadmap

Configuring Anycast RP using IPv4 PIM reduces the burden on an RP and hosts can join the closest RP.

  1. Configure IP addresses and unicast routes for interfaces on each switch to ensure connectivity at the network layer.

  2. Configure basic multicast functions so that multicast data can be forwarded. Enable multicast, enable PIM-SM and configure candidate bootstrap router (C-BSR) and candidate rendezvous point (C-RP) on each interface, and enable Internet Group Management Protocol (IGMP) on interfaces that connect the switch and hosts.

  3. Configure Anycast RP to allow HostB to fast receive multicast data. Configure SwitchC and SwitchD as the Anycast RP peers. HostB joins the closest SwitchD. After receiving the source multicast data, SwitchA encapsulates the data into Register messages and sends the message to SwitchC. SwitchC forwards the Register message to SwitchD. Host B then receives the multicast source data.

Procedure

  1. Configure an IP address for each interface on the switch and a unicast routing protocol.

    Configure the IP address and mask for each interface on the switch shown in Figure 4-28, and configure Open Shortest Path First (OSPF) on each switch to ensure that switches can communicate.

    # Add interfaces of SwitchC to VLANs. The configuration of SwitchA, SwitchB, and SwitchD are similar to the configuration of SwitchC, and are not mentioned.

    <HUAWEI> system-view
    [~HUAWEI] sysname SwitchC
    [*HUAWEI] commit
    [~SwitchC] vlan batch 10 21 30
    [*SwitchC] interface 10ge 1/0/1
    [*SwitchC-10GE1/0/1] port link-type trunk
    [*SwitchC-10GE1/0/1] port trunk allow-pass vlan 30
    [*SwitchC-10GE1/0/1] quit
    [*SwitchC] interface 10ge 1/0/2
    [*SwitchC-10GE1/0/2] port link-type trunk
    [*SwitchC-10GE1/0/2] port trunk allow-pass vlan 10
    [*SwitchC-10GE1/0/2] quit
    [*SwitchC] interface 10ge 1/0/3
    [*SwitchC-10GE1/0/3] port default vlan 21
    [*SwitchC-10GE1/0/3] quit
    [*SwitchC] commit

    # Assign IP addresses to interfaces on SwitchC. The configuration of SwitchA, SwitchB, and SwitchD are similar to the configuration of SwitchC, and are not mentioned.

    [~SwitchC] interface vlanif 10
    [*SwitchC-Vlanif10] ip address 192.168.1.2 24
    [*SwitchC-Vlanif10] quit
    [*SwitchC] interface vlanif 21
    [*SwitchC-Vlanif21] ip address 10.110.2.1 24
    [*SwitchC-Vlanif21] quit
    [*SwitchC] interface vlanif 30
    [*SwitchC-Vlanif30] ip address 192.168.3.1 24
    [*SwitchC-Vlanif30] quit
    [*SwitchC] interface loopback 0
    [*SwitchC-LoopBack0] ip address 192.168.150.1 32
    [*SwitchC-LoopBack0] quit
    [*SwitchC] interface loopback 1
    [*SwitchC-LoopBack1] ip address 192.168.150.2 32
    [*SwitchC-LoopBack1] quit
    [*SwitchC] commit

    # Configure a routing protocol on SwitchC. OSPF is used in this example. The configuration of SwitchA, SwitchB, and SwitchD are similar to the configuration of SwitchC, and are not mentioned.

    [~SwitchC] ospf
    [*SwitchC-ospf-1] area 0
    [*SwitchC-ospf-1-area-0.0.0.0] network 10.110.2.0 0.0.0.255
    [*SwitchC-ospf-1-area-0.0.0.0] network 192.168.1.0 0.0.0.255
    [*SwitchC-ospf-1-area-0.0.0.0] network 192.168.3.0 0.0.0.255
    [*SwitchC-ospf-1-area-0.0.0.0] network 192.168.150.1 0.0.0.0
    [*SwitchC-ospf-1-area-0.0.0.0] network 192.168.150.2 0.0.0.0
    [*SwitchC-ospf-1-area-0.0.0.0] commit
    [~SwitchC-ospf-1-area-0.0.0.0] quit
    [~SwitchC-ospf-1] quit

  2. Configure basic multicast functions on each switch.

    # Enable multicast routing on SwitchC and PIM-SM on interfaces. The configuration of SwitchA,SwitchB, and SwitchD are similar to the configuration of SwitchC, and are not mentioned here.

    [~SwitchC] multicast routing-enable
    [*SwitchC] interface vlanif 10
    [*SwitchC-Vlanif10] pim sm
    [*SwitchC-Vlanif10] quit
    [*SwitchC] interface vlanif 21
    [*SwitchC-Vlanif21] pim sm
    [*SwitchC-Vlanif21] quit
    [*SwitchC] interface vlanif 30
    [*SwitchC-Vlanif30] pim sm
    [*SwitchC-Vlanif30] quit
    [*SwitchC] interface loopback 0
    [*SwitchC-LoopBack0] pim sm
    [*SwitchC-LoopBack0] quit
    [*SwitchC] interface loopback 1
    [*SwitchC-LoopBack1] pim sm
    [*SwitchC-LoopBack1] quit
    [*SwitchC] commit

    # Configure the Loopback0 interface of SwitchC and SwitchD as C-RP and C-BSR. The configuration of SwitchD is similar to the configuration of SwitchC, and is not mentioned here.

    [~SwitchC] pim
    [*SwitchC-pim] c-bsr loopback 0
    [*SwitchC-pim] c-rp loopback 0
    [*SwitchC-pim] commit
    [~SwitchC-pim] quit

    # Enable IGMP on interfaces that connect SwitchC, SwitchD and hosts. The configuration of SwitchD is similar to the configuration of SwitchC, and is not mentioned.

    [~SwitchC] interface vlanif 21
    [~SwitchC-Vlanif21] igmp enable
    [*SwitchC-Vlanif21] commit
    [~SwitchC-Vlanif21] quit

  3. Configure Anycast RP.

    # On SwitchC and SwitchD, configure Loopback0 as an Anycast RP and specify the address of Loopback1 as the local Anycast address. The configuration of SwitchD is similar to the configuration of SwitchC, and is not mentioned.

    [~SwitchC] pim
    [~SwitchC-pim] anycast-rp 192.168.150.1
    [*SwitchC-pim-anycast-rp-192.168.150.1] local-address 192.168.150.2
    [*SwitchC-pim-anycast-rp-192.168.150.1] commit
    [~SwitchC-pim-anycast-rp-192.168.150.1] quit
    [~SwitchC-pim] quit

    # Configure SwitchC and SwitchD as Anycast RP peers.

    [~SwitchC-pim] anycast-rp 192.168.150.1
    [~SwitchC-pim-anycast-rp-192.168.150.1] peer 192.168.150.3
    [*SwitchC-pim-anycast-rp-192.168.150.1] commit
    [~SwitchC-pim-anycast-rp-192.168.150.1] quit
    [~SwitchC-pim] quit
    [~SwitchD-pim] anycast-rp 192.168.150.1
    [~SwitchD-pim-anycast-rp-192.168.150.1] peer 192.168.150.2
    [*SwitchD-pim-anycast-rp-192.168.150.1] commit
    [~SwitchD-pim-anycast-rp-192.168.150.1] quit
    [~SwitchD-pim] quit

  4. Verify the configuration.

    # Run the display pim rp-info command to check information about the RP on SwitchC and SwitchD.

    [~SwitchC] display pim rp-info
     VPN-Instance: public net
     PIM-SM BSR RP Number:1
     Group/MaskLen: 224.0.0.0/4
         RP: 192.168.150.1 (local)
         Priority: 0
         Uptime: 00:45:19
         Expires: 00:02:11
         BIDIR: N
    
    [~SwitchD] display pim rp-info
     VPN-Instance: public net
     PIM-SM BSR RP Number:1
     Group/MaskLen: 224.0.0.0/4
         RP: 192.168.150.1 (local)
         Priority: 0
         Uptime: 02:27:56
         Expires: 00:01:39
         BIDIR: N
    

    The preceding information shows that SwitchC and SwitchD serve as the RPs and can forward the Register message from the multicast source to each other.

    # Run the display pim routing-table command to check PIM entries on each switch. The multicast source 10.110.1.2/24 in the PIM-SM domain sends multicast data to multicast group G 226.1.1.1, and HostB joins G and receives the multicast data sent to G. The multicast source sends a Register message to Switch C and Host B sends a Join message to Switch D.

    [~SwitchC] display pim routing-table
     VPN-Instance: public net
     Total 0 (*, G) entry; 1 (S, G) entry
    
     (10.110.1.2, 226.1.1.1)
         RP: 192.168.150.1 (local)
         Protocol: pim-sm, Flag: SPT 2MSDP ACT
         UpTime: 00:00:38
         Upstream interface: Vlanif10
             Upstream neighbor: NULL
             RPF prime neighbor: NULL
         Downstream interface(s) information:
         Total number of downstreams: 1
             1: Vlanif30
                 Protocol: pim-sm, UpTime: 00:01:15, Expires: -
    
    
    [~SwitchD] display pim routing-table
     VPN-Instance: public net
     Total 1 (*, G) entry; 1 (S, G) entry
    
     (*, 226.1.1.1)
         RP: 192.168.150.1 (local)
         Protocol: pim-sm, Flag: WC
         UpTime: 00:01:25
         Upstream interface: Register
             Upstream neighbor: NULL
             RPF prime neighbor: NULL
         Downstream interface(s) information:
         Total number of downstreams: 1
             1: Vlanif31
                 Protocol: igmp, UpTime: 00:01:25, Expires: -
    
     (10.110.1.2, 226.1.1.1)
         RP: 192.168.150.1 (local)
         Protocol: pim-sm, Flag: SPT 2MSDP ACT
         UpTime: 00:00:02
         Upstream interface: Vlanif30
             Upstream neighbor: 192.168.3.1
             RPF prime neighbor: 192.168.3.1
         Downstream interface(s) information:
         Total number of downstreams: 1
             1: Vlanif31
                 Protocol: pim-sm, UpTime: 00:00:02, Expires: -

Configuration Files

  • SwitchA configuration file

    #
    sysname SwitchA
    #
    vlan batch 10 to 11
    #
    multicast routing-enable
    #
    interface Vlanif10
     ip address 192.168.1.1 255.255.255.0
     pim sm
    #
    interface Vlanif11
     ip address 10.110.1.1 255.255.255.0
     pim sm
    #
    interface 10GE1/0/1
     port default vlan 11
    #
    interface 10GE1/0/2
     port link-type trunk
     port trunk allow-pass vlan 10
    #
    ospf 1
     area 0.0.0.0
      network 10.110.1.0 0.0.0.255
      network 192.168.1.0 0.0.0.255
    #
    return
  • SwitchB configuration file

    #
    sysname SwitchB
    #
    vlan batch 20
    #
    multicast routing-enable
    #
    interface Vlanif20
     ip address 192.168.2.1 255.255.255.0
     pim sm
    #
    interface 10GE1/0/1
     port link-type trunk
     port trunk allow-pass vlan 20
    #
    ospf 1
     area 0.0.0.0
      network 192.168.2.0 0.0.0.255
    #
    return
  • SwitchC configuration file

    #
    sysname SwitchC
    #
    vlan batch 10 21 30
    #
    multicast routing-enable
    #
    interface Vlanif10
     ip address 192.168.1.2 255.255.255.0
     pim sm
    #
    interface Vlanif21
     ip address 10.110.2.1 255.255.255.0
     pim sm
     igmp enable
    #
    interface Vlanif30
     ip address 192.168.3.1 255.255.255.0
     pim sm
    #
    interface 10GE1/0/1
     port link-type trunk
     port trunk allow-pass vlan 30
    #
    interface 10GE1/0/2
     port link-type trunk
     port trunk allow-pass vlan 10
    #
    interface 10GE1/0/3
     port default vlan 21
    #
    interface LoopBack0
     ip address 192.168.150.1 255.255.255.255
     pim sm
    #
    interface LoopBack1
     ip address 192.168.150.2 255.255.255.255
     pim sm
    #
    ospf 1
     area 0.0.0.0
      network 10.110.2.0 0.0.0.255
      network 192.168.1.0 0.0.0.255
      network 192.168.3.0 0.0.0.255
      network 192.168.150.1 0.0.0.0
      network 192.168.150.2 0.0.0.0
    #
    pim
     c-bsr LoopBack0
     c-rp LoopBack0
     anycast-rp 192.168.150.1
      local-address 192.168.150.2
      peer 192.168.150.3
    #
    return
  • SwitchD configuration file

    #
    sysname SwitchD
    #
    vlan batch 20 30 to 31
    #
    multicast routing-enable
    #
    interface Vlanif20
     ip address 192.168.2.2 255.255.255.0
     pim sm
    #
    interface Vlanif30
     ip address 192.168.3.2 255.255.255.0
     pim sm
    #
    interface Vlanif31
     ip address 10.110.3.1 255.255.255.0
     pim sm
     igmp enable
    #
    interface 10GE1/0/1
     port link-type trunk
     port trunk allow-pass vlan 20
    #
    interface 10GE1/0/2
     port default vlan 31
    #
    interface 10GE1/0/3
     port link-type trunk
     port trunk allow-pass vlan 30
    #
    interface LoopBack0
     ip address 192.168.150.1 255.255.255.255
     pim sm
    #
    interface LoopBack1
     ip address 192.168.150.3 255.255.255.255
     pim sm
    #
    ospf 1
     area 0.0.0.0
      network 10.110.3.0 0.0.0.255
      network 192.168.2.0 0.0.0.255
      network 192.168.3.0 0.0.0.255
      network 192.168.150.1 0.0.0.0
      network 192.168.150.3 0.0.0.0
    #
    pim
     c-bsr LoopBack0
     c-rp LoopBack0
     anycast-rp 192.168.150.1
      local-address 192.168.150.3
      peer 192.168.150.2
    #
    return
    
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Updated: 2019-04-20

Document ID: EDOC1100075361

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