Reducing Source-Active Message Flooding; Specifying The Rp Address Used In Sa Messages; Msdp Sample Configurations - Dell Z9500 Configuration Manual

4 Peer each RP with every other RP using MSDP, specifying the unique Loopback address as the connect-source.
CONFIGURATION mode
ip msdp peer
5 Advertise the network of each of the unique Loopback addresses throughout the network.
ROUTER OSPF mode
network

Reducing Source-Active Message Flooding

RPs flood source-active messages to all of their peers away from the RP.
When multiple RPs exist within a domain, the RPs forward received active source information back to the originating RP, which
violates the RFP rule. You can prevent this unnecessary flooding by creating a mesh-group. A mesh in this context is a topology
in which each RP in a set of RPs has a peership with all other RPs in the set. When an RP is a member of the mesh group, it
forwards active source information only to its peers outside of the group.
To create a mesh group, use the following command.
• Create a mesh group.
CONFIGURATION mode
ip msdp mesh-group

Specifying the RP Address Used in SA Messages

The default originator-id is the address of the RP that created the message. In the case of Anycast RP, there are multiple RPs all
with the same address.
To use the (unique) address of another interface as the originator-id, use the following command.
• Use the address of another interface as the originator-id instead of the RP address.
CONFIGURATION mode
ip msdp originator-id
Examples of R1, R2, and R3 Configuration for MSDP with Anycast RP
The following example shows an R1 configuration for MSDP with Anycast RP.
The following example shows an R2 configuration for MSDP with Anycast RP.
The following example shows an R3 configuration for MSDP with Anycast RP.

MSDP Sample Configurations

The following examples show the running-configurations described in this chapter.
For more information, see the illustrations in the
MSDP Sample Configuration: R1 Running-Config
MSDP Sample Configuration: R2 Running-Config
MSDP Sample Configuration: R3 Running-Config
MSDP Sample Configuration: R4 Running-Config
Related Configuration Tasks section.
Multicast Source Discovery Protocol (MSDP) 553