R3721-F3210-F3171-HP High-End Firewalls Network Management Configuration Guide-6PW101

Table Of Contents
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Configuring MSDP
NOTE:
The firewall supports MSDP configuration only at the CLI.
Multicast source discovery protocol (MSDP) is an inter-domain multicast solution that addresses the
interconnection of protocol independent multicast sparse mode (PIM-SM) domains. It discovers multicast
source information in other PIM-SM domains.
In the basic PIM-SM mode, a multicast source registers only with the RP in the local PIM-SM domain, and
the multicast source information about a domain is isolated from that of another domain. As a result, the
RP obtains the source information only within the local domain and a multicast distribution tree is built
only within the local domain to deliver multicast data from a local multicast source to local receivers.
MSDP enables the RPs of different PIM-SM domains to share their multicast source information, so that the
local RP can join multicast sources in other domains and multicast data can be transmitted among
different domains.
With MSDP peer relationships established between appropriate routers in the network, the RPs of
different PIM-SM domains are interconnected with one another. These MSDP peers exchange source
active (SA) messages, so that the multicast source information is shared among these different domains.
NOTE:
MSDP is applicable only if the intra-domain multicast protocol is PIM-SM.
MSDP is meaningful only for the any-source multicast (ASM) model.
For more information about the concepts of DR, BSR, C-BSR, RP, C-RP, SPT and RPT mentioned in this
document, see "Configuring PIM."
MSDP configuration task list
Task Remarks
Configuring basic
functions of MSDP
Enabling MSDP
Required
Creating an MSDP peer connection
Required
Configuring a static RPF peer
Optional
Configuring an MSDP
peer connection
Configuring MSDP peer description Optional
Configuring an MSDP mesh group Optional
Configuring MSDP peer connection control Optional
Configuring SA
messages related
parameters
Configuring SA message content Optional
Configuring SA request messages Optional
Configuring SA message filtering rules Optional
Configuring the SA cache mechanism Optional