Before configuring IPv6 PIM-SM inter-domain multicast, configure BootStrap router (BSR) boundaries to divide a multicast network into different PIM-SM domains. Each BSR serves only the local PIM-SM domain, and routers outside the BSR boundary of a PIM-SM domain do not take part in BSR messages forwarding in the PIM-SM domain.
After a BSR boundary is configured on the interface of an edge router in an IPv6 PIM-SM domain, Bootstrap messages cannot pass through this interface. The interfaces configured with BSR boundaries divide a network into different PIM-SM domains.
BSR boundaries can also be used to isolate PIM-SM domains from the Internet.
Before configuring a BSR boundary, complete the following tasks:
Configure an IPv6 unicast routing protocol to ensure that IPv6 unicast routes are reachable.
Enable IPv6 multicast routing on all routers and enable IPv6 PIM-SM on each interface on the routers.
The system view is displayed.
The interface view is displayed.
A BSR boundary is configured. Bootstrap messages cannot pass through the BSR boundary.
The configuration is committed.
Run the display pim ipv6 bsr-info command to check information about the BSR in an IPv6 PIM-SM domain.