Multicast - Rendezvous Points

6 important questions on Multicast - Rendezvous Points

In PIM-SM it is mandatory to have a Rendezvous Point, how can these be configured.

They can be configured by the dynamic mechanisms Auto-RP or a PIM Bootstrap Router (BSR) or they can be configured statically.
It is important to note that Auto-RP and BSR are not designed to work together, and it is recommended not to use them concurrently.

How is a Static RP configured?

It is configured by setting a address for the RP for a Multicast Group on every router in the Multicast Domain..

Auto-RP is a Cisco Proprietary mechanism, what are some of the benefits?

- It is easy to use multiple RPs within a network for different group ranges.
-  Allows load splitting between RPs
- Prevents inconsistency because of manual configuration
- RPs can function as backups to other RPs

What are C-RPs and how do they work?

Candidate RPs are Routers that advertise their willingness to be an RP. If there are multiple C-RPs the one with the highest IP address is preferred.

What are RP MAs and how do they work?

RP Mapping Agents join group to receive the RP announcements. They store this information in a group-to-rp mapping cache.
The RP MA advertise the mapping to the address.

The PIM Bootstrap Router is part of PIM Version 2, what is it used for?

It has the same function as Auto-RP, it is used to automatically discover and distribute a fault tolerant RP.

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