4000 Router Series IP Multicast Configuration Guide

108

Task Command

Display the RPF route information of the

specified IPv6 multicast source.

display ipv6 multicast [ vpn-instance vpn-instance-name ] rpf-info

ipv6-source-address [ ipv6-group-address ]

Clear statistics for IPv6 multicast

forwarding events.

reset ipv6 multicast [ vpn-instance vpn-instance-name ]

forwarding event

Clear forwarding entries from the IPv6

multicast forwarding table.

reset ipv6 multicast [ vpn-instance vpn-instance-name ]

forwarding-table { { ipv6-source-address [ prefix-length ] |

ipv6-group-address [ prefix-length ] | incoming-interface

{ interface-type interface-number } } * | all }

Clear routing entries from the IPv6

multicast routing table.

reset ipv6 multicast [ vpn-instance vpn-instance-name ]

routing-table { { ipv6-source-address [ prefix-length ] |

ipv6-group-address [ prefix-length ] | incoming-interface

interface-type interface-number } * | all }

NOTE:

hen a routin

entry is removed, the associated forwarding entry is also removed. When a forwardin

entry is removed, the associated routing entry is also removed.

Multicast forwarding over a GRE tunnel

Network requirements

As shown in Figure 39, IPv6 multicast routing and IPv6 PIM-DM are enabled on Router A and Router C.

Router B does not support IPv6 multicast. OSPFv3 is running on Router A, Router B, and Router C.

Configure a GRE tunnel so that the receiver host can receive the IPv6 multicast data from the source.

Figure 39 Network diagram

Configuration procedure

1. Configure the IP address and prefix length for each interface as shown in Figure 39. (Details not

shown.)

2. Enable OSPFv3 on the routers to make sure the network-layer among the routers is interoperable

and the routing information among the routers can be dynamically updated. (Details not shown.)