3Com Switch 8800 Advanced Software V5 Configuration Guide

Configuring IPv6 PIM-SM 685
■ An IPv6 ACL rule defining a legal C-RP address range and the range of IPv6
multicast groups to be served
■ C-RP-Adv interval
■ C-RP timeout time
■ The IPv6 address of a static RP
■ An IPv6 ACL rule for register message filtering
■ Register suppression timeout time
■ Probe time
■ Whether to disable RPT-to-SPT switchover
Enabling IPv6 PIM-SM With IPv6 PIM-SM enabled, a device sends hello messages periodically to discover
IPv6 PIM neighbors and processes messages from IPv6 PIM neighbors. When
deploying an IPv6 PIM-SM domain, you are recommended to enable IPv6 PIM-SM
on all interfaces of non-border devices (border devices are IPv6 PIM devices located
on the boundary of BSR admin-scope regions).
Follow these steps to enable IPv6 PIM-SM:
c
CAUTION:
■ All the interfaces of the same device must work in the same IPv6 PIM mode.
■ After IPv6 PIM-SM is enabled on a VLAN interface, MLD snooping cannot be
enabled in the corresponding VLAN, and vice versa
Configuring a BSR
n
The BSR is dynamically elected from a number of C-BSRs. Because it is
unpredictable which device will finally win a BSR election, the commands
introduced in this section must be configured on all C-BSRs.
Performing basic C-BSR configuration
An IPv6 PIM-SM domain can have only one BSR, but must have at least one C-BSR.
Any device can be configured as C-BSR. Elected from C-BSRs, a BSR is responsible
for collecting and advertising RP information in the IPv6 PIM-SM.
C-BSRs should be configured on devices in the backbone network. When
configuring a device as a C-BSR, be sure to specify an IPv6 PIM-SM-enabled. The
BSR election process is as follows:
To do... Use the command... Remarks
Enter system view system-view -
Enable IPv6 multicast routing multicast ipv6
routing-enable
Required
Disable by default
Enter VLAN interface view interface interface-type
interface-number
-
Enable IPv6 PIM-SM pim ipv6 sm Required
Disabled by default