Ipv6 Multicast Forwarding Across Ipv6 Unicast Subnets; Configuration Task List; Enabling Ipv6 Multicast Routing - HPE FlexNetwork 5510 HI Series Configuration Manual

IPv6 multicast forwarding across IPv6 unicast subnets

Routers forward the IPv6 multicast data from an IPv6 multicast source hop by hop along the
forwarding tree, but some routers might not support IPv6 multicast protocols in a network. When the
IPv6 multicast data is forwarded to a router that does not support IPv6 multicast, the forwarding path
is blocked. In this case, you can enable IPv6 multicast data forwarding across the IPv6 unicast
subnets by establishing a tunnel between the routers at both ends of the IPv6 unicast subnets.
Figure 81 IPv6 multicast data transmission through a tunnel
IPv6 multicast deivce
Source
As shown in
Device A encapsulates the IPv6 multicast data in unicast IPv6 packets, and forwards them to Device
B across the tunnel through unicast routers. Then, Device B strips off the unicast IPv6 header and
continues to forward the IPv6 multicast data down toward the receivers.

Configuration task list

Tasks at a glance
(Required.)
(Optional.)
• (Optional.)
• (Optional.)
• (Optional.)
• (Optional.)

Enabling IPv6 multicast routing

Enable IPv6 multicast routing before you configure any Layer 3 IPv6 multicast functionality in the
public network or VPN instance.
To enable IPv6 multicast routing:
Step
Enter system view.
1.
Enable IPv6 multicast
2.
routing and enter IPv6 MRIB
view.
IPv6 unicast device
Device A
IPv6 unicast device
Figure 81, a tunnel is established between the multicast routers Device A and Device B.
Enabling IPv6 multicast routing
Configuring IPv6 multicast routing and
Specifying the longest prefix match principle
Configuring IPv6 multicast load splitting
Configuring an IPv6 multicast forwarding boundary
Enabling IPv6 multicast forwarding between sub-VLANs of a super VLAN
IPv6 unicast device
Tunnel
IPv6 unicast device
forwarding:
Command
system-view
ipv6 multicast routing
[ vpn-instance
vpn-instance-name ]
243
IPv6 multicast device
Device B
Receiver
Remarks
N/A
By default, IPv6 multicast routing
is disabled.