[Cialug] Multicast, anyone?

[Nathan C. Smith]

I've messed about with Multicast video on my network.  You can quickly slow everything with the addition of a lot of multicast traffic and some old devices (in our case, printers).  We have some old HP Laserjet 4 printers that were horribly burdened by receiving all the multicast packets (not sure why they were) and printouts would take 5 minutes and longer per page.

In the end everything seemed to work but it was really scary seeing all the ports lit solid.  Something I thought would not happen once I enabled IGMP snooping.

So I guess my guidance is: don't start working with multicast during peak hours on your production network until you have some confidence with how to configure your switches.

-Nate

-----Original Message-----
From: cialug-bounces at cialug.org [mailto:cialug-bounces at cialug.org] On Behalf Of L. V. Lammert
Sent: Sunday, October 24, 2010 9:31 PM
To: Central Iowa Linux Users Group
Subject: [Cialug] Multicast, anyone?

Got a project where we will be distributing boot images to hundreds of boxes, .. they manufacturer advises setting up a multicast to conserve bandwidth. Does anyone have any experience provisioning?

	Lee
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