All things related to multicast

[Yuri Kolomiyets <>]

Marshall Eubanks wrote:
> Is the receiver behind the Cisco and the source behind the HP ?
Receiver is behind HP, Source is behind Cisco.

> 60 seconds is the default PIM  Period between Join/Prune Messages 
> (http://www.faqs.org/rfcs/rfc4601.html - section 4.11). It sounds from 
> the discription below that the HP is doing the right thing (what it is 
> told to do).
I'm not sure HP is doing the right thing. It's sending PIM updates, but 
i dont think that Prune list in the HP update is correct.

> Is the CISCO running IGMP v2 ?
They are both running IGMP v2 and PIM v2. But in our production network 
this occurs 3-4 hops up from the receiver, so i don't think IGMP is an 
issue.

> Can you get a better dump of the IGMP traffic. Is it possible that 
> IGMP traffic is not being done correctly - for example, that the VLANs 
> are an NBMA network ? That will cause false time outs.
I'll set up a sniff and get some IGMP traffic dumps. HP doesn't have 
much for debugging tools, and IGMP wise Cisco is not showing anything.

> Have you tried the test with 2 Ciscos and then with 2 HPs ?

Have not tried 2 ciscos, but 2 HPs work OK.

--
Yuri Kolomiyets

Network Services
Information Systems & Technology
University of Waterloo

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