Multicast on a 3560

Unanswered Question
Feb 5th, 2010

I know I've seen 3560's that support multicast routing but mine doesn't recognize the command

(config)#ip mu?
% Unrecognized command

Is there a minimum IOS that I'm supposed to have or anything else that is a prereq to a switch supporting multicast?

#sh ver
Cisco IOS Software, C3560 Software (C3560-IPBASE-M), Version 12.2(35)SE5, RELEASE SOFTWARE (fc1)
Copyright (c) 1986-2007 by Cisco Systems, Inc.
Compiled Thu 19-Jul-07 18:15 by nachen
Image text-base: 0x00003000, data-base: 0x01100000

ROM: Bootstrap program is C3560 boot loader
BOOTLDR: C3560 Boot Loader (C3560-HBOOT-M) Version 12.2(25r)SEE4, RELEASE SOFTWARE (fc1)

uptime is 6 weeks, 17 hours, 17 minutes
System returned to ROM by power-on
System image file is "flash:c3560-ipbase-mz.122-35.SE5/c3560-ipbase-mz.122-35.SE5.bin"

I have this problem too.
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johnnylingo Fri, 02/05/2010 - 14:43

Does the switch have "ip routing" configured? 

All images should support basic L3 operations, including static routes and Multicast.   But you'd have to enable L3 first.

houstonrob Fri, 02/05/2010 - 14:45

This switch does quite a bit of interVLAN routing, yes L3 is already active

johnnylingo Fri, 02/05/2010 - 14:57

Ah yup - according to Software Advisor, 12.2(35)SE5 requires IP SERVICES to do Multicast.

Howver, with 12.2(25)SEE4, both will.


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