All things related to multicast

[Jay Ford <>]

On Thu, 4 Apr 2002, Michael Hare wrote:
> I work for WiscNet (statewide educational network) up in Wisconsin.  We're
> starting to offer multicast services to any of our 500+ members who request
> it.  We currently run a sparse-mode WAN network, use anycast RP, and have
> two MSDP peering points with the outside world.  I'm struggling with how to
> exchange multicast with those members.  How are other organizations
> operating?

I have a situation which is perhaps sufficiently similar that you might be
able to shed some light related to the outside-world MSDP configuration.

I have 2 border routers which do MBGP+MSDP with the outside world, one to
MREN (primary Abilene...) & the other to Iowa State University (secondary
Abilene).  It seems that I should take some care to avoid creating a MSDP
loop (uiowa-MREN-Abilene-iastate-uiowa).  Is that a real concern?  If so, do
you have some advice on how to do the SA filtering or whatever is required?

Documentation references or config excerpts would be appreciated.

________________________________________________________________________
Jay Ford, Network Engineering Group, Information Technology Services
University of Iowa, Iowa City, IA 52242
email: 
,
 phone: 319-335-5555, fax: 319-335-5505