Chapter 13 IPv6 PIM-SM Configuration
Step
Command
Function
2
ZXR10(config-mcast-ipv6-pim-if-vlan1)#
dr-priority
<
priority
>
Configures the DR priority on a
IPv6 PIM-SM interface.
3
ZXR10(config-mcast-ipv6-pim-if-vlan1)#
bsr-border
Sets an interface to the border
of the IPv6 PIM-SM domain.
4
ZXR10(config-mcast-ipv6-pim-if-vlan1)#
hello-inter
val
<
seconds
>
Configures the interval to send
Hello messages.
The command parameter in Step 1 is described as follows:
Parameter
Description
infinity
Infinity, making all sources of designated groups use the RPT
Note:
By default, the threshold to hand the RPT over to the SPT is 0.
Only the last hop DR and RP can hand over to the SPT on their own initiative. By default,
the handover begins when the RP receives the first Register message. For the last hop
DR, the policy of SPT handover can be configured by using single multicast group as the
control granularity. If the handover threshold of a group is set to infinity, handover will not
be performed. By default, as long as there is traffic, handover is performed.
The command parameters in Step 2 are described as follows:
Parameter
Description
<
priority
>
DR priority on a PIM interface, in the range of 0-4294967295,
with the default value of 1.
A DR must be elected in a shared (or multi-access) segment. The candidate DR with
the highest priority will become the DR. If several candidate DRs have the same highest
priority, the one with the largest IP address will become the DR.
In a shared segment connecting to the multicast source, only the DR can send Register
messages to RP. In a shared segment connecting to receivers, only the DR reply to the
MLD Join messages and Leaving messages, and send PIM Join/Pruning messages to
upstream devices. The switch priority is contained in the Hello messages exchanged with
neighbors, with the default value of 1.
Configuration Example
The following example shows how to configure the DR priority on vlan1.
ZXR10(config)#ipv6 multicast-routing
ZXR10(config-mcast-ipv6)#router pim
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