All things related to multicast

[Bill Nickless <>]

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At 06:21 PM 2/7/2001 -0800, Toerless Eckert wrote:
> > In summary, yes: be very concerned.  We have spent money upgrading 
> switches
> > that used to be CGMP-only-capable to be IGMP capable, and moving other
> > CGMP-only-capable switches into unicast-only edge applications.
>
>Was that with Cisco switches supporting IGMP Snooping or non-Cisco IGMP
>Snooping switches ?

The IGMP snooping switch is a Cisco Catalyst 6509, running CatOS 
5.4(4).  The router involved is an MSFC in that 6509, running IOS 
12.1(2)E.  The CGMP switch involved is a Cisco C3512-XL running 
(C3500XL-C3H2S-M), Version 12.0(5)XU.

Thank you, Linda and Toerless, for the pointers to the CGMP protocol 
information.  Next time I run into problems I will refer to them, so as to 
be debugging with more confidence.
===
Bill Nickless    http://www.mcs.anl.gov/people/nickless      +1 630 252 7390
PGP:0E 0F 16 80 C5 B1 69 52 E1 44 1A A5 0E 1B 74 F7     


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