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Dell EMC Configuration Guide for the S4048T–ON System 9.14.2.4

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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

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