[nsp] Speaking of Multicast

Kristofer Sigurdsson ks at rhi.hi.is
Wed May 19 07:32:33 EDT 2004


Vincent De Keyzer, Wed, May 19, 2004 at 01:20:57PM +0200 :
> Hello again,
> 
> I could get the set-up of yesterday working in the lab, going from Fa0/0 to
> Fa0/1 on a 2620.
> 
> Now I am doing a field trial, and it does not work as good - maybe because
> there are switches in between?
> 
> Do I need to configure something on the Catalysts that transport the
> dedicated VLAN? There is only one receiver, so I don't need to multicast on
> the switch itself. The switch are there because that's the way to go from
> the router to the decoder.
> 
> Fa0/0.519 on
> Cisco 7206VXR----------3524----------3524-----------2924---------Decoder
>              .1Q trunk     .1Q trunk     .1Q trunk       VLAN519

I'm pretty sure you have to configure CGMP on the switch ports, otherwise the
multicast stream will not go through.

-- 
Kristófer Sigurðsson			Tel: +354 525 4103 / MSN: ks at rhi.hi.is
Netsérfræðingur/Network specialist	Reiknistofnun HÍ/University of Iceland


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