Deployment Guide
active sources in the area of the other RPs. If any of the RPs fail, IP routing converges and one of the RPs becomes the active RP in more
than one area. New sources register with the backup RP. Receivers join toward the new RP and connectivity is maintained.
Implementation Information
The Dell Networking operating system (OS) implementation of MSDP is in accordance with RFC 3618 and Anycast RP is in accordance
with RFC 3446.
Congure the Multicast Source Discovery Protocol
Conguring MSDP is a four-step process.
1 Enable an exterior gateway protocol (EGP) with at least two routing domains.
Refer to the following gures.
The MSDP Sample Congurations show the OSPF-BGP conguration used in this chapter for MSDP. Also, refer to Open Shortest
Path First (OSPFv2 and OSPFv3) and Border Gateway Protocol IPv4 (BGPv4).
2 Congure PIM-SM within each EGP routing domain.
Refer to the following gures.
The MSDP Sample Congurations show the PIM-SM conguration in this chapter for MSDP. Also, refer to PIM Sparse-Mode (PIM-
SM).
3 Enabling MSDP.
4 Peer the RPs in each routing domain with each other. Refer to Enabling MSDP.
Related Conguration Tasks
The following lists related MSDP conguration tasks.
• Enabling MSDP
• Manage the Source-Active Cache
• Accept Source-Active Messages that Fail the RFP Check
• Limiting the Source-Active Messages from a Peer
• Preventing MSDP from Caching a Local Source
• Preventing MSDP from Caching a Remote Source
• Preventing MSDP from Advertising a Local Source
• Terminating a Peership
• Clearing Peer Statistics
• Debugging MSDP
• Anycast RP
• MSDP Sample Congurations
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Multicast Source Discovery Protocol (MSDP)