Configuring Hardware Multicast Packet Replication

To configure hardware multicast packet replication:

1. Configure port 8 on a high-density Ethernet module to accept redirected egress multicast traffic.
   1. Specify the Gigabit Ethernet interface on port 8.
   2. Create a VLAN major interface.
   3. Create a VLAN subinterface.
   4. Assign a VLAN ID.
   5. Configure an unnumbered IPv6 interface.
   6. Enable MLD on the interface with only multicast-data-forwarding capability.

      host1(config)#interface gigabitEthernet 2/8

      host1(config-if)#encapsulation vlan

      host1(config-if)#interface gigabitEthernet 2/8.1

      host1(config-if)#vlan id 1

      host1(config-if)#ipv6 unnumbered loopback 0

      host1(config-if)#ipv6 mld version passive

2. Configure an IPv6 interface to redirect egress multicast traffic to port 8.
   1. Create a VLAN subinterface.
   2. Assign a VLAN ID.
   3. Assign an IPv6 address.
   4. Configure the interface to redirect egress multicast traffic to port 8.

      host1(config)#interface gigabitEthernet 2/0.101

      host1(config-if)#vlan id 1

      host1(config-if)#ipv6 address 1::1/64

      host1(config-if)#ipv6 multicast ioa-packet-replication gigabitEthernet 2/8.1

encapsulation vlan

• Use to configure VLAN as the encapsulation method for the interface.
• Example

  host1(config-if)#encapsulation vlan

• Use the no version to disable VLAN on an interface.
• See encapsulation vlan.

ipv6 mld version

• Use to set the MLD version (1 or 2) for the interface.
• Example

  host1:boston(config-if)#ipv6 mld version 2

• Use the no version to set the version to the default, MLDv2.
• See ipv6 mld version.

ipv6 multicast ioa-packet-replication

• Use to configure hardware multicast packet replication on port 8 of a high-density Ethernet module.
• Example

  host1(config-if)#ipv6 multicast ioa-packet-replication gigabitEthernet 3/8.1

• Use the no version to disable hardware multicast packet replication.
• See ipv6 multicast ioa-packet-replication

ipv6 unnumbered

• Use to configure an unnumbered IPv6 interface.
• This command enables IPv6 processing on an interface without assigning an explicit IPv6 address to the interface.
• You must specify an interface location, which is the identifier of another interface on which the router has an assigned IPv6 address. This interface cannot be another unnumbered interface.
• Example

  host1(config-if)#ipv6 unnumbered loopback 10

• Use the no version to disable IPv6 processing on the interface.
• See ipv6 unnumbered.

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