Chapter 14 Ipv6 Pim-Ssm Configuration; Pim-Ssm Overview; Configuring Ipv6 Pim-Ssm - Zte ZXR10 5900E Configuration Manual

Chapter 14
IPv6 PIM-SSM Configuration
Table of Contents

PIM-SSM Overview ..................................................................................................14-1

Configuring IPv6 PIM-SSM.......................................................................................14-1

IPv6 PIM-SSM Maintenance and Diagnosis .............................................................14-2
IPv6 PIM-SSM Configuration Example .....................................................................14-3
14.1 PIM-SSM Overview
Protocol Independent Multicast-Source Specific Multicast (PIM-SSM) has all 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 will construct 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 switches will 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 switch
will send a (S, G) Join message to the direction of the source to construct a SPT. The last
hop switch will not send a (*, G) Join message to the direction of RP. Once the SPT is
constructed, the first hop switch will forward packets along this tree.
14.2 Configuring IPv6 PIM-SSM
To configure IPv6 PIM-SSM on ZXR10 5900E, perform the following step.
Command
ZXR10(config-mcast-ipv6-pim)#
< access-list-name >]
The command parameter is described as follows:
Parameter
< access-list-name >
When the group-list is not configured, the default group range is FF3X::/32.
SJ-20150114102049-011|2015-01-15 (R1.0)
ssm range default[group-list
Description
ACL name, with 1-31 characters
14-1
Function
Configures address range of IPv6
SSM groups or uses the default
group address range.
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