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Task
Enabling IPv6 multicast routing
Before you configure any Layer 3 IPv6 multicast functionality, you must enable IPv6 multicast routing.
Follow these steps to enable IPv6 multicast routing:
To do...
Enter system view
Enable IPv6 multicast routing
Configuring IPv6 multicast routing and forwarding
Configuration prerequisites
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
Configuring per-source or per-source-and-group load splitting can optimize the traffic delivery when
multiple IPv6 multicast data streams are handled.
Follow these steps to configure an IPv6 multicast routing policy:
To do...
Enter system view
Configure the device to select the
RPF route based on the longest
match
Configuring an IPv6 multicast
forwarding range
Configuring the IPv6 multicast
forwarding table size
Use the Command...
system-view
multicast ipv6 routing-enable
"RPF check
process."
Use the command...
system-view
multicast ipv6 longest-match
295
Remarks
Optional
Optional
Remarks
—
Required
Disabled by default
Remarks
—
Optional
The route with the highest
priority is selected as the RPF
route by default
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Troubleshooting
