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NE40E V800R010C10SPC500 Configuration Guide - IP Multicast 01

This is NE40E V800R010C10SPC500 Configuration Guide - IP Multicast
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Example for Configuring Layer 2 Multicast Entry Limit in a VLAN Scenario

Example for Configuring Layer 2 Multicast Entry Limit in a VLAN Scenario

This section provides an example for configuring Layer 2 multicast entry limit in a VLAN scenario.

Networking Requirements

On the network shown in Figure 18-23, IPTV services are deployed on the VLAN network, and a CE is connected to the upper layer network through a PE and finally accesses the IPTV server. The CE is downlinked to a residential network VLAN 100.

To save link bandwidth on the VLAN network, configure Layer 2 multicast entry limit on the CE as required after fully evaluating the network capability.

The required Layer 2 multicast entry limit configurations on the CE are as follows:
  • Limit the number of multicast groups on the downstream interface GE 1/0/1 as follows:
    • Limit the number of multicast groups in VLAN 100 to 10.
Figure 18-23 Configuring Layer 2 multicast entry limit in a VLAN scenario
NOTE:

Interfaces 1 in this example is GE 1/0/1.



Configuration Roadmap

The configuration roadmap is as follows:

  1. Configure VLAN 100 on the CE so that downstream subscribers can receive multicast data.

  2. Enable IGMP snooping globally and in the VLAN to implement on-demand multicast data distribution in the VLAN and reduce bandwidth consumption at both the user side and network side.

  3. Configure Layer 2 multicast entry limit for VLAN 100 and for GE 1/0/1 to control the multicast group numbers.

Data Preparation

To complete the configuration, you need the following data:

  • VLAN ID of the residential network attached to the CE: 100

  • Maximum numbers of Layer 2 multicast entries

Procedure

  1. Configure a VLAN.

    # Configure VLAN 100 on the CE.

    <HUAWEI> system-view
    [~HUAWEI] sysname CE
    [*HUAWEI] commit
    [~CE] interface gigabitethernet 1/0/1
    [~CE-GigabitEthernet1/0/1] portswitch
    [*CE-GigabitEthernet1/0/1] undo shutdown
    [*CE-GigabitEthernet1/0/1] quit
    [*CE] vlan 100
    [*CE-vlan100] port gigabitethernet 1/0/1
    [*CE-vlan100] quit
    [*CE] commit

  2. Enable IGMP snooping.

    # Enable IGMP snooping globally on the CE.

    [~CE] igmp-snooping enable
    [*CE] commit

    # Enable IGMP snooping in VLAN 100.

    [~CE] vlan 100
    [~CE-vlan100] igmp-snooping enable
    [*CE-vlan100] quit
    [*CE] commit

  3. Configure Layer 2 multicast entry limit for the VLAN.

    # Configure the CE.

    [~CE] l2-multicast limit max-entry 10 vlan 100
    [*CE] commit

  4. Configure Layer 2 multicast entry limit for a specified VLAN on an interface.

    # Configure Layer 2 multicast entry limit for VLAN 100 on GE 1/0/1 of the CE.

    [~CE] interface gigabitethernet 1/0/1
    [~CE-GigabitEthernet1/0/1] l2-multicast limit max-entry 10 vlan 100
    [*CE-GigabitEthernet1/0/1] quit
    [*CE] commit

  5. Verify the configuration.

    After completing the configurations, run the display l2-multicast limit command on the CE. The command output shows Layer 2 multicast entry limit configurations.

    [~CE] display l2-multicast limit
    L2-multicast limit information
    ------------------------------------------------------------------------------
                                                   ConfigEntries 
                                                   CurrentEntries
    ------------------------------------------------------------------------------
    VLAN 100 limit information:
    ------------------------------------------------------------------------------
                                                   10           
                                                   0  
    interface GigabitEthernet1/0/1 VLAN 100 limit information:
    ------------------------------------------------------------------------------
                                                   10           
                                                   0
    

Configuration Files

  • CE configuration file

    #
     sysname CE
    #
     vlan batch 100
    #
     igmp-snooping enable
     l2-multicast limit max-entry 10 vlan 100
    #
    vlan 100
     igmp-snooping enable
    #
    interface GigabitEthernet1/0/1
     portswitch
     undo shutdown
     port default vlan 100
     l2-multicast limit max-entry 10 vlan 100
    #
    return
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Updated: 2019-01-03

Document ID: EDOC1100055017

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