Protocols And Standards; Configuring Pim-Dm; Pim-Dm Configuration Task List; Enabling Pim - HP 4800G Series Configuration Manual

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report messages to the respective DRs to express their interest in the information of the specific

multicast source S.

Upon receiving a report message, the DR first checks whether the group address in this message falls

in the SSM group range:

If so, the DR sends a subscribe message for channel subscription hop by hop toward the multicast

source S. An (S, G) entry is created on all routers on the path from the DR to the source. Thus, an

SPT is built in the network, with the source S as its root and receivers as its leaves. This SPT is the

transmission channel in PIM-SSM.

If not, the PIM-SM process is followed: the DR needs to send a (*, G) join message to the RP, and

a multicast source registration process is needed.

In PIM-SSM, the "channel" concept is used to refer to a multicast group, and the "channel subscription"

concept is used to refer to a join message.

Protocols and Standards

PIM-related specifications are as follows:

RFC 4601: Protocol Independent Multicast-Sparse Mode (PIM-SM): Protocol Specification

Specification(Revised)

RFC 4607: Source-Specific Multicast for IP

RFC 5059: Bootstrap Router (BSR) Mechanism for Protocol Independent Multicast (PIM)

Draft-ietf-ssm-overview-05: An Overview of Source-Specific Multicast (SSM)

Complete these tasks to configure PIM-DM:

Enabling PIM-DM

Configuring PIM-DM Graft Retry Period

Configuring PIM Common Features

1-9, Host B and Host C are multicast information receivers. They send IGMPv3

Multicast-Dense

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