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Configuration Guide - IP Multicast

CloudEngine 12800 and 12800E 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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Example for Configuring IGMP Snooping Proxy

Example for Configuring IGMP Snooping Proxy

Networking Requirements

As shown in Figure 10-10, Router connects to user hosts through a Layer 2 Switch and Router runs IGMPv2. There are multiple receiver hosts on the network, and the administrator expects that exchange of IGMP messages will not be a burden to Router.

Figure 10-10 Networking diagram for the IGMP snooping proxy configuration

Configuration Roadmap

To meet the preceding requirements, configure IGMP snooping proxy on the Switch. The configuration roadmap is as follows:

  1. Create a VLAN and add interfaces to the VLAN.

  2. Enable IGMP snooping globally and in the VLAN.

  3. Configure IGMP snooping proxy on the Switch to reduce packet exchange between the Switch and Router.

  4. Disable the Switch from sending IGMP Query messages to the upstream Router to prevent election of the IGMP querier.

Procedure

  1. Create a VLAN and add interfaces to the VLAN.

    <HUAWEI> system-view
    [~HUAWEI] sysname Switch
    [*HUAWEI] commit
    [~Switch] vlan 10
    [*Switch-vlan10] quit
    [*Switch] interface 10ge 1/0/1
    [*Switch-10GE1/0/1] port default vlan 10
    [*Switch-10GE1/0/1] quit
    [*Switch] interface 10ge 2/0/2
    [*Switch-10GE2/0/2] port default vlan 10
    [*Switch-10GE2/0/2] quit
    [*Switch] interface 10ge 3/0/3
    [*Switch-10GE3/0/3] port link-type trunk
    [*Switch-10GE3/0/3] port trunk allow-pass vlan 10
    [*Switch-10GE3/0/3] commit
    [~Switch-10GE3/0/3] quit

  2. Enable IGMP snooping.

    # Enable IGMP snooping globally.

    [~Switch] igmp snooping enable

    # Enable IGMP snooping in VLAN 10.

    [*Switch] vlan 10
    [*Switch-vlan10] igmp snooping enable
    [*Switch-vlan10] commit
    

    # Configure IGMPv3 snooping to enable the Switch to process IGMP messages of all versions.

    [~Switch-vlan10] igmp snooping version 3
    [*Switch-vlan10] commit
    

  3. Enable IGMP snooping proxy.

    [~Switch-vlan10] igmp snooping proxy
    [*Switch-vlan10] commit
    [~Switch-vlan10] quit

  4. Disable the Switch from sending IGMP Query messages to the upstream Router.

    [~Switch] interface 10ge 3/0/3
    [~Switch-10GE3/0/3] igmp snooping proxy-uplink-port vlan 10
    [*Switch-10GE3/0/3] commit
    [~Switch-10GE3/0/3] quit

  5. Verify the configuration.

    # Check IGMP message statistics on the Switch.

    [~Switch] display igmp snooping statistics vlan 10
     IGMP Snooping Packets Counter:                                                      
       Statistics for VLAN 10                                                            
         Receive V1 Report:          0                                                   
         Receive V2 Report:          1121                                                
         Receive V3 Report:          0                                                   
         Receive V1 Query:           0                                                   
         Receive V2 Query:           2                                                   
         Receive V3 Query:           0                                                   
         Receive Leave:              0                                                   
         Receive Pim Hello:          4                                                   
         Send Query (S=0):           0                                                   
         Send Query (S!=0):          -                                                   
         Proxy Send General Query:             13                                     
         Proxy Send Group-Specific Query:         0                                      
         Proxy Send Group-Source-Specific Query:  0                                      
    

    The command output shows that the IGMP snooping proxy takes effect as the Switch functions as a proxy to send IGMP General Query messages.

Configuration Files

  • Switch configuration file

    #
    sysname Switch
    #
    vlan batch 10
    #
    igmp snooping enable
    #
    vlan 10
     igmp snooping enable
     igmp snooping version 3
     igmp snooping proxy
    #
    interface 10GE1/0/1
     port default vlan 10
    #
    interface 10GE2/0/2
     port default vlan 10
    #
    interface 10GE3/0/3
     port link-type trunk
     port trunk allow-pass vlan 10
     igmp snooping proxy-uplink-port vlan 10 
    #
    return
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Updated: 2019-04-20

Document ID: EDOC1100074724

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