H3C S5500-EI - Configuration Task List; Enabling Ipv6 Multicast Routing; Configuring Ipv6 Multicast Routing and Forwarding; Configuring an Ipv6 Multicast Routing Policy

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• When an IPv6 multicast packet arrives on VLAN-interface 10 of Router C, because the interface is
not the incoming interface of the (S, G) entry, the router performs an RPF check on the packet. The
router searches its IPv6 unicast routing table and finds that the outgoing interface to Source (the RPF
interface) is VLAN-interface 20. This means that the (S, G) entry is correct and the packet arrived
along a wrong path. The RPF check fails and the packet is discarded.
Configuration task list
Task Remarks
Enabling IPv6 multicast routing Required
Configuring IPv6 multicast
routing and forwarding
Configuring an IPv6 multicast routing policy Optional
Configuring an IPv6 multicast forwarding range Optional
Configuring the IPv6 multicast forwarding table size Optional
Enabling IPv6 multicast routing
Before you configure any Layer 3 IPv6 multicast functionality, you must enable IPv6 multicast routing.
To enable IPv6 multicast routing:
Ste
p
Command Remarks
1. Enter system view.
system-view N/A
2. Enable IPv6 multicast routing.
multicast ipv6 routing-enable Disabled by default.
Configuring IPv6 multicast routing and forwarding
Before you configure IPv6 multicast routing and forwarding, complete the following tasks:
• Enable IPv6 forwarding and configure an IPv6 unicast routing protocol so that all devices in the
domain are interoperable at the network layer.
• Configure IPv6 PIM-DM or IPv6 PIM-SM.
• Determine the maximum number of downstream nodes for a single entry in the IPv6 multicast
forwarding table.
• Determine the maximum number of entries in the IPv6 multicast forwarding table.
Configuring an IPv6 multicast routing policy
You can configure the router to determine the RPF route based on the longest match principle. For more
information about RPF route selection, see "RPF check mechanism."