From: Bob Sinclair (bob@bobsinclair.net)
Date: Mon Oct 01 2007 - 10:39:52 ART
Rich Collins wrote:
> I'm curious about BSR. What should you see in the question to point you in
> that direction versus DM, autorp or static RP?
>
Rich,
The more you know about these methods, the easier it is to interpret the
task requirements. The primary attribute of both Auto-RP and BSR is
dynamic advertising and fail-over. One of the primary differentiators
would be Cisco protocol (Auto-RP) versus IETF standard (BSR, PIMv2).
Beyond that, there are many distinctions. For example:
Auto-RP works with the multicast boundary to enable announcement filters
for individual groups, BSR does not.
Auto-RP RPs and MAs use IP multicast trees to communicate, BSR uses a
combination of subnet-local multicasts and unicast.
BSR gives us priorities to control candidate RPs and BSRs, Auto-RP does
not.
Auto-RP gives us the scope parameter, BSR does not. This is one of the
reasons Beau Williamson is still so hot on Auto-RP.
As with all topics, the more you know about the protocol and the IOS
options, the easier it is to interpret the task requirements.
HTH,
--Bob Sinclair CCIE 10427 CCSI 30427 www.netmasterclass.net
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