Chapter 14 IPv6 PIM-SM Configuration
router checks whether it has already had the routes of the group. If it has, the intermediate
router adds the downstream request router to the shared multicast tree as a branch. If not,
it continues to send the Join message to the RP.
When the RP or the multicast router connects to a receiver directly, it can switch to the
SPT from the shared tree. When the RP receives a Register message sent from a new
multicast source, the RP returns a Join message to the DR directly connecting to the
multicast source. Thus, the SPT from the source to the RP is constructed.
After a DR or a router directly connecting to multicast members receives the first multicast
packet from the multicast group, or the received packets reaches a threshold, it can switch
to the SPT from the shared tree. Once the handover occurs, the router sends a Prune
message to the upstream neighbor and requests to leave the shared tree.
14.2 Configuring IPv6 PIM-SM
This procedure describes how to configure PIM-SM, including basic information, global
parameters, and policy control function.
Steps
1.
Enable and configure the IPv6 PIM-SM protocol.
Step
Command
Function
1
ZXR10(config-mcast-ipv6)#
router pim
Enables IPv6 PIM.
2
ZXR10(config-mcast-ipv6-pim)#
interface
<
interface-name
>
3
ZXR10(config-mcast-ipv6-pim-if-interface-
name)#
pimsm
After IPv6 PIM-SM is enabled
on an interface, MLD is
enabled automatically on the
interface. By default, PIM-SM
is not enabled on an interface.
2.
Configure static RP.
Command
Function
ZXR10(config-mcast-ipv6-pim)#
static-rp
<
ipv6-address
>[{[
group-list
<
prefix-list-name
>]
,
[
priority
<
priority
>]}]
Configures a static RP.
<
ip-address
>: The static RP address, in X:X::X:X format.
<
priority
>: The priority, range: 0 to 255, default: 192.
By default, no static RP is configured.
Usage descriptions of a static RP:
i.
After a static RP is configured, it participates in RP set selection, even the router
does not receive any RP information advertisement of BSR.
ii.
If the <
prifix-list-name
> parameter is not configured, the static RP is suitable for
all multicast groups.
14-3
SJ-20140504150128-018|2014-05-10 (R1.0)
ZTE Proprietary and Confidential
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