PLANET XGS3-24042 - Manual (Page 473)

49-17
49.4 PIM-SSM6
49.4.1 Introduction to PIM-SSM6
Source Specific Multicast (PIM-SSM6) is a new kind of multicast service protocol. With PIM-SSM6, a multicast
session is distinguished by the multicast group address and multicast source address. In SSM6, hosts can be
added into the multicast group manually and efficiently like the traditional PIM-SM6, but leave out the shared
tree and RP management in PIM-S6M. In SSM6, SPT tree will be constructed with (S,G). G for the multicast
group address and S for the source address of the multicast which sends datagram to G. (S,G) in a pair is
named as a channel of SSM6. SSM6 serves best for the application of multicast service which is from one
station to many ones, for example, the network sports video channel, and the news channel. By default, the
multicast group address of SSM6 is limited to ff3x::/32. However this address range can be extended
according to actual situations.
PIM-SSM6 can be supported in the PIM-DM6 environment.
49.4.2 PIM-SSM6 Configuration Task List
Command Explanation
Global configuration mode
ipv6 pim ssm {default|range }
no ipv6 pim ssm
To configure address range for
pim-ssm multicast group. The
no prefix will disable this
command.
49.4.3 PIM-SSM6 Configuration Example
As it is shown in the below figure, ethernet interfaces of switchA, switchB, switchC, and switchD are
separated into different vlan. And PIM-SM6 or PIM-DM6 is enabled on all the vlan interfaces. Take
configuration of PIM-SM6 for example.