Chapter 15 Ipv6 Pim-Ssm Configuration; Pim-Ssm Overview; Configuring Ipv6 Pim-Ssm - Zte ZXR10 ZSR V2 Configuration Manual

Chapter 15
IPv6 PIM-SSM Configuration
Table of Contents

PIM-SSM Overview ..................................................................................................15-1

Configuring IPv6 PIM-SSM.......................................................................................15-1

IPv6 PIM-SSM Configuration Example .....................................................................15-2
15.1 PIM-SSM Overview
Protocol Independent Multicast-Source Specific Multicast (PIM-SSM) has all the
advantages of PIM-SM. PIM-SSM does not construct a shared tree. Instead, it only
constructs the SPT. When receiving the member relation report messages about a specific
source and a group, PIM-SSM constructs the SPT directly.
PIM-SSM is a subset of PIM-SM. PIM-SSM is suitable for the well known sources. It is
both intra-domain and inter-domain valid. PIM-SM uses MSDP for inter-domain multicast
routing. PIM-SSM does not need to use MSDP. The multicast group address allocated for
PIM-SSM is FF3X::/32. The routers do not construct a shared tree for this group address.
After a host sends a Join message from a specific source to a group, the last hop router
sends a (S, G) Join message to the direction of the source to construct a SPT. The last
hop router does not send a (*, G) Join message to the direction of RP. Once the SPT is
constructed, the first hop router forwards packets along this tree.
15.2 Configuring IPv6 PIM-SSM
This procedure describes how to configure IPv6 PIM-SSM.
Steps
1. Configure IPv6 PIM-SSM.
Command
ZXR10(config-mcast-ipv6-pim)#
[group-list < access-list-name >]
2. Verify the configurations.
SJ-20140504150128-018|2014-05-10 (R1.0)
Function
ssm range | default Configures address range of IPv6
SSM groups, or uses the default group
address range.
When the group-list is not configured,
the default group range is FF3X::/32.
15-1
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