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4 msdp configuration, 1 introduction to msdp, 2 brief introduction to msdp configuration tasks – QTECH QSW-8300 Инструкция по настройке User Manual

Page 218: Msdp, Onfiguration

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routing leading to BSR.

Use show ip pim rp-hash command to check if RP information is correct; if there is not RP

information, you still need to check unicast routing.

If all attempts including Check are made but the problems on PIM-

SM can’t be solved yet, then

use debug commands such debug pim/debug pim BSR please, and then copy DEBUG

information in 3 minutes and send to Technology Service Center.

28.4 MSDP Configuration

28.4.1 Introduction to MSDP

MSDP

– Multicast Source Discovery Protocol, is a protocol that can learn information about

multicast source in other PIM-SM domain. The RP on which MSDP is configured will advertise

the information about the multicast sources in its domain to all the other MSDP entities through

SA messages. Thus, all the information about multicast sources in one PIM-SM domain is

spread to another. In MSDP, inter-domain information tree is used other than the shared tree. It

is required that the multicast routing protocol used for in-domain routing must be PIM-SM.

The work flow for RP in PIM-SM protocol

28.4.2 Brief Introduction to MSDP Configuration Tasks

Configuration of MSDP Basic Function

Enabling MSDP (Required)

Configuring MSDP entities (Required)

Configuring the Connect-Source interface

Configuring static RPF entities

Multicast

Application

Server

1

PIM

Register
Packet

4 Switching to
the shortest path
tree and do the
delivery

2

The

subscriber join
the group

3 The
multicast
date is
deliveried
through
the
shared
tree

Subscribe

r

R

P