Example for Configuring MLD Based on QinQ Termination

This section provides an example for configuring MLD based on QinQ termination.

Networking Requirements

On the network shown in Figure 1, Device A is connected to Device B and Switch A.

Host 1 and Host 2 are connected to Device A through Switch A. An MLD message sent from Switch A to Device A carries double VLAN tags and is transmitted to the multicast network through a QinQ VLAN tag termination sub-interface.

After MLD is enabled on Device A's GE 0/1/0, Host 1 and Host 2 can obtain traffic sent by the multicast source.

Figure 1 Configuring MLD based on QinQ termination

Interfaces 1 and 2 in this example represent GE 0/1/0 and GE 0/1/1, respectively.

Configuration Roadmap

The configuration roadmap is as follows:

Enable IPv6 multicast on Device A.
Enable IPv6 PIM-SM on Device A's GE 0/1/1.
Configure QinQ termination on Device A's GE 0/1/0.1, and enable IPv6 PIM-SM and MLD on the sub-interface.

Data Preparation

To complete the configuration, you need the following data:

Double VLAN tags on Switch A: 1 and 2

Procedure

Enable IPv6 multicast on Device A.

<HUAWEI> system-view
[~DeviceA] multicast ipv6 routing-enable 
[*DeviceA] commit

Configure an IPv6 address for Device A's GE 0/1/1 and enable IPv6 PIM-SM.

[~DeviceA] interface GigabitEthernet0/1/1
[~DeviceA-GigabitEthernet0/1/1] ipv6 enable
[*DeviceA-GigabitEthernet0/1/1] ipv6 address 2001:db8:6::1/64
[*DeviceA-GigabitEthernet0/1/1] pim ipv6 sm
[*DeviceA-GigabitEthernet0/1/1] commit
[~DeviceA-GigabitEthernet0/1/1] quit

Configure QinQ termination on Device A's GE 0/1/0.1, and enable IPv6 PIM-SM and MLD on the sub-interface.

[~DeviceA] interface GigabitEthernet0/1/0.1
[~DeviceA-GigabitEthernet0/1/0.1] encapsulation qinq-termination
[*DeviceA-GigabitEthernet0/1/0.1] qinq termination pe-vid 1 to 4 ce-vid 1 to 4
[*DeviceA-GigabitEthernet0/1/0.1] ipv6 enable
[*DeviceA-GigabitEthernet0/1/0.1] ipv6 address 2001:db8:7::2/64
[*DeviceA-GigabitEthernet0/1/0.1] pim ipv6 sm
[*DeviceA-GigabitEthernet0/1/0.1] commit
[*DeviceA-GigabitEthernet0/1/0.1] quit

Verify the configuration.

# Run the display pim ipv6 routing-table command on Device A. The command output shows that multicast traffic for MLD based on QinQ termination is normally sent.

VPN-Instance: public net
  Total 1 (*, G) entry; 1 (S, G) entry
   (*, FF17::1)
      RP: NULL
      Protocol: pim-sm, Flag: WC NIIF 
      UpTime: 00:00:33
     Upstream interface: NULL, Refresh time: 00:00:33
         Upstream neighbor: NULL
          RPF prime neighbor: NULL
      Downstream interface(s) information:
      Total number of downstreams: 1
         1:GigabitEthernet0/1/0.1
              Protocol: mld, UpTime: 00:00:33, Expires: -
   (2001:db8:5::1, FF17::1)
      RP: NULL
      Protocol: pim-sm, Flag: SPT LOC ACT 
      UpTime: 00:00:22
     Upstream interface: GigabitEthernet0/1/1, Refresh time: 00:00:22
         Upstream neighbor: NULL
          RPF prime neighbor: NULL
      Downstream interface(s) information:
      Total number of downstreams: 1
         1:GigabitEthernet0/1/0.1
              Protocol: pim-sm, UpTime: 00:00:22, Expires: -

Configuration Files

Device A configuration file

#
 sysname HUAWEI
 #
 multicast ipv6 routing-enable
 #
 interface GigabitEthernet0/1/0
  undo shutdown
 #
 interface GigabitEthernet0/1/0.1
  ipv6 enable
  ipv6 address 2001:db8:7::2/64
  encapsulation qinq-termination
  qinq termination pe-vid 1 to 4 ce-vid 1 to 4
  pim ipv6 sm
  mld enable
 #
 interface GigabitEthernet0/1/1
  undo shutdown
  ipv6 enable
  ipv6 address 2001:db8:6::1/64
  pim ipv6 sm
 #
 ipv6 route-static 2001:db8:5:: 64  2001:db8:6::2
 #
 return