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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 Basic MLD Functions

Example for Configuring Basic MLD Functions

This section provides an example for configuring basic MLD functions.

Networking Requirements

On the network shown in Figure 10-3, hosts want to receive VoD information in IPv6 multicast mode, and Host A and Host B want to join multicast group FF13::101 to steadily receive popular programs. To meet these requirements, configure basic MLD functions.

Figure 10-3 Configuring basic MLD functions
NOTE:


Device Interface IP Address Device Interface IP Address
Device A GE 2/0/0 2001:db8:1::1/64 Device D GE 1/0/0 2001:db8:4::1/64
GE 1/0/0 2001:db8:5::1/64 GE 2/0/1 2001:db8:1::2/64
Device B GE 2/0/0 2001:db8:2::1/64 GE 2/0/2 2001:db8:2::2/64
GE 1/0/0 2001:db8:6::1/64 GE 2/0/3 2001:db8:3::2/64
Device C GE 2/0/0 2001:db8:3::1/64
GE 1/0/0 2001:db8:7::1/64

Precautions

When configuring basic MLD functions, note the following precautions:

  • IPv6 PIM-SM must be enabled before MLD is enabled.

  • Interfaces connected to the same user network segment must run the same MLD version.

Configuration Roadmap

The configuration roadmap is as follows:

  1. Configure an IPv6 address for each router interface and an IPv6 unicast routing protocol.

  2. Enable IPv6 multicast routing on all routers.

  3. Enable IPv6 PIM-SM on all router interfaces.

  4. Enable MLD on interfaces that connect to hosts.

  5. Configure GE 1/0/0 on Device A to statically join MLD group FF13::101 to steadily receive multicast data.

Data Preparation

To complete the configuration, you need the following data:

  • Version numbers of MLD run on routers and user hosts

  • Address of the MLD group that interface statically joins

Procedure

  1. Configure an IPv6 address for each router interface and a unicast routing protocol. For configuration details, see Configuration Files in this section.
  2. Enable IPv6 multicast routing on each router and enable IPv6 PIM-SM on each router interface.

    # Configure Device D.

    [~DeviceD] multicast ipv6 routing-enable
    [*DeviceD] interface GigabitEthernet 1/0/0
    [*DeviceD-GigabitEthernet1/0/0] pim ipv6 sm
    [*DeviceD-GigabitEthernet1/0/0] quit
    [*DeviceD] interface GigabitEthernet 2/0/1
    [*DeviceD-GigabitEthernet2/0/1] pim ipv6 sm
    [*DeviceD-GigabitEthernet2/0/1] quit
    [*DeviceD] interface GigabitEthernet 2/0/2
    [*DeviceD-GigabitEthernet2/0/2] pim sm
    [*DeviceD-GigabitEthernet2/0/2] quit
    [*DeviceD] interface GigabitEthernet 2/0/3
    [*DeviceD-GigabitEthernet2/0/3] pim ipv6 sm
    [*DeviceD-GigabitEthernet2/0/3] commit
    [~DeviceD-GigabitEthernet2/0/3] quit

    The configurations of Device A, Device B, and Device C are similar to the configuration of Device D. For configuration details, see Configuration Files in this section.

  3. Configure a Rendezvous Point (RP).

    # Configure a dynamic RP on Device D.

    [~DeviceD] pim-ipv6
    [*DeviceD-pim6] c-bsr 2001:db8:4::1
    [*DeviceD-pim6] c-rp 2001:db8:4::1
    [*DeviceD-pim6] commit
    [~DeviceD-pim6] quit

  4. Enable MLD on interfaces that connect to hosts.

    # Configure Device A.

    [~DeviceA] interface gigabitethernet 1/0/0
    [~DeviceA-GigabitEthernet1/0/0] mld enable
    [*DeviceA-GigabitEthernet1/0/0] commit
    [~DeviceA-GigabitEthernet1/0/0] quit

    The configurations of Device B and Device C are similar to the configuration of Device A. For configuration details, see Configuration Files in this section.

  5. Configure GE 1/0/0 on Device A to statically join MLD group FF13::101.

    [~DeviceA] interface gigabitethernet 1/0/0
    [~DeviceA-GigabitEthernet1/0/0] mld static-group ff13::101
    [*DeviceA-GigabitEthernet1/0/0] commit
    [~DeviceA-GigabitEthernet1/0/0] quit

  6. Verify the configuration.

    # Run the display mld interface command to view brief MLD information on the interfaces of the router. For example, MLD information on GE 1/0/0 of Device B is as follows:

    <DeviceB> display mld interface
    GigabitEthernet1/0/0(FE80::200:5EFF:FE66:5100):
       MLD is enabled
       Current MLD version is 1
       MLD state: up
       MLD group policy: none
       Value of query interval for MLD (negotiated): 125 s
       Value of query interval for MLD (configured): 125 s
       Value of other querier timeout for MLD: 0 s
       Value of maximum query response time for MLD: 10 s
       Querier for MLD: FE80::200:5EFF:FE66:5100 (this router)

    The command output shows that Device B is a querier. This is because GE 1/0/0 of Device B has the lowest IPv6 address among the interfaces connected to the user network segment.

    # Run the display pim ipv6 routing-table command on Device A to check whether GE 1/0/0 has joined MLD group FF13::101 statically. The command output shows that a (*, FF13::101) entry has been generated, the downstream interface is GE 1/0/0, and the protocol type is static. These information indicates that GE 1/0/0 has joined MLD group 225.1.1.1 statically.

    <DeviceA> display pim ipv6 routing-table
    VPN-Instance: public net
     Total 1 (*, G) entry; 0 (S, G) entry
     (*, FF13::101)
         RP: 2001:db8:4::1
         Protocol: pim-sm, Flag: WC
         UpTime: 00:12:17
         Upstream interface: GigabitEthernet2/0/0
             Upstream neighbor: 2001:db8:1::1
             RPF prime neighbor: 2001:db8:1::1
         Downstream interface(s) information:
         Total number of downstreams: 1
             1: GigabitEthernet1/0/0
                 Protocol: mld, UpTime: 00:12:17, Expires: -

Configuration Files

  • Device A configuration file

    #
    sysname DeviceA
    #
    multicast ipv6 routing-enable
    #
    isis 1
     ipv6 enable topology standard
     network-entity 10.0000.0000.0001.00
    #
    interface GigabitEthernet1/0/0
     undo shutdown
     ipv6 enable
     ipv6 address 2001:db8:5::1/64
     pim ipv6 sm
     mld enable
     mld static-group ff13::101
     isis ipv6 enable 1
    #
    interface GigabitEthernet2/0/0
     undo shutdown
     ipv6 enable
     ipv6 address 2001:db8:1::1/64
     pim ipv6 sm
     isis ipv6 enable 1
    #
    return
  • Device B configuration file

    #
    sysname DeviceB
    #
    multicast ipv6 routing-enable
    #
    isis 1
     ipv6 enable topology standard
     network-entity 10.0000.0000.0002.00
    #
    interface GigabitEthernet1/0/0
     undo shutdown
     ipv6 enable
     ipv6 address 2001:db8:6::1/64
     pim ipv6 sm
     mld enable
     isis ipv6 enable 1
    #
    interface GigabitEthernet2/0/0
     undo shutdown
     ipv6 enable
     ipv6 address 2001:db8:2::1/64
     pim ipv6 sm
     isis ipv6 enable 1
    #
    return
  • Device C configuration file

    #
    sysname DeviceC
    #
    multicast ipv6 routing-enable
    #
    isis 1
     ipv6 enable topology standard
     network-entity 10.0000.0000.0003.00
    #
    interface GigabitEthernet1/0/0
     undo shutdown
     ipv6 enable
     ipv6 address 2001:db8:7::1/64
     pim ipv6 sm
     mld enable
     isis ipv6 enable 1
    #
    interface GigabitEthernet2/0/0
     undo shutdown
     ipv6 enable
     ipv6 address 2001:db8:3::1/64
     pim ipv6 sm
     isis ipv6 enable 1
    #
    return
  • Device D configuration file

    #
    sysname DeviceD
    #
    multicast ipv6 routing-enable
    #
    isis 1
     ipv6 enable topology standard
     network-entity 10.0000.0000.0004.00
    #
    interface GigabitEthernet1/0/0
     undo shutdown
     ipv6 address 2001:db8:4::1/64
     pim ipv6 sm
     isis ipv6 enable 1
    #
    interface GigabitEthernet2/0/1
     undo shutdown
     ipv6 address 2001:db8:1::2/64
     pim ipv6 sm
     isis ipv6 enable 1
    #
    interface GigabitEthernet2/0/2
     undo shutdown
     ipv6 address 2001:db8:2::2/64
     pim ipv6 sm
     isis ipv6 enable 1
    #
    interface GigabitEthernet2/0/3
     undo shutdown
     ipv6 address 2001:db8:3::2/64
     pim ipv6 sm
     isis ipv6 enable 1
    #
    pim-ipv6
     c-bsr 2001:db8:4::1
     c-rp 2001:db8:4::1
    #
    return
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Updated: 2019-01-03

Document ID: EDOC1100055017

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