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What Are Characteristics of PIM-SM and PIM-SSM and Which Type of Network Is Each Mode Applicable to?

Latest reply: May 16, 2017 06:20:28 1350 1 0 0 0
What Are Characteristics of PIM-SM and PIM-SSM and Which Type of Network Is Each Mode Applicable to?
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  • convention:

Adamcolob
Created May 16, 2017 06:20:28

PIM-SM is short for Protocol Independent Multicast Sparse Mode. In this mode, an MDT is set up when receivers actively join a multicast group. PIM-SM is applicable to the network on which group members sparsely reside. RP maintenance, RPT construction, and multicast source registration are involved in PIM-SM.

PIM-SSM is similar to PIM-SM but maintaining RPs, constructing RPTs, and registering multicast sources are not required. In PIM-SSM, an SPT can be directly set up between a multicast source and group members as long as the source is routable. Therefore, PIM-SSM has a distinct advantage in inter-AS multicast data forwarding.
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