Why use BSR?

From: Marc La Porte (marc.a.laporte@gmail.com)
Date: Thu Jun 12 2008 - 08:48:41 ART

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Hi experts!

What would be a good (real-life) reason to use BSR in combination with RP?
For example:

ip multicast-routing
ip pim bsr-candidate Loopback0 4 110
ip pim rp-candidate Loopback0
!
interface Vlan38
 ip pim sparse-mode

Is not BSR used in a situation where you only want to use sparse-mode (and
not default to dense-mode when no RP can be found)?
Is not a better solution to use "ip pim autorp listener"?
What are the pros and cons of using BSR?
Does it work together with Anycast-RP and MSDP?

Reason is that I am working on developing a IP Multicast standard in a
multi-homed data center environment (8000+ ports) spanning multiple OSPF
area, BGP AS's, etc

Thanks for your feedback.

Marc

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