Enable igmp snooping on 3500XL 12.05)

Trying to enable igmp snooping on a 3500XL 12.0(5) switch.  

when I enter ip igmp snooping, I get invalid input.  
When I enter ip igmp ?, I get ambiguous command.
 When I enter ip igmp, I get incomplete command.   (!)
When I enter sh ip igmp snooping, I get invalid input.
 It doesn't recognize snooping...
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switch> enable (may be prompted for a password here)
switch# config t  (enter config mode)
switch#(conf) ip igmp snooping
switch#(conf) exit   (exit configuration mode)
switch# wr mem    (saves config)

harbor235 ;}
wildersteinAuthor Commented:

That's what I did.  I was in config mode.
Gives me invalid input at "snooping"

What type of image do you have EMI or SMI?  Check by doing a show version

harbor235 ;}
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wildersteinAuthor Commented:

#sh ver
Cisco Internetwork Operating System Software
IOS (tm) C3500XL Software (C3500XL-C3H2S-M), Version 12.0(5.3)WC(1), MAINTENANCE
Copyright (c) 1986-2001 by cisco Systems, Inc.
Compiled Mon 30-Apr-01 07:51 by devgoyal
Image text-base: 0x00003000, data-base: 0x003331F4

ROM: Bootstrap program is C3500XL boot loader

ernie uptime is 10 weeks, 6 days, 5 hours, 21 minutes
System returned to ROM by power-on
System image file is "flash:c3500XL-c3h2s-mz-120-5.3.WC.1.bin"

cisco WS-C3548-XL (PowerPC403) processor (revision 0x01) with 16384K/1024K bytes
 of memory.
Processor board ID FAB0537M1GX, with hardware revision 0x00
Last reset from power-on

Processor is running Enterprise Edition Software
Cluster command switch capable
Cluster member switch capable
48 FastEthernet/IEEE 802.3 interface(s)
2 Gigabit Ethernet/IEEE 802.3 interface(s)

The 3500XL switches do not support igmp snooping. Here is the link;


harbor235 ;}
wildersteinAuthor Commented:
Really.  I've been instructed to turn on multicasting throughout the network.  I've got the 6506 and 6509 multicast enabled.  What good will it do if I can't do igmp snooping on the switches?  They are all 3500 or 3500XL.  Just got in some 2960s.  Any work arounds without replacing equipment?

You can use CGMP instead of IGMP, CGMP is supported

config t
cgmp leave-processing

See if that works

Check out the following doc


harbor235 ;}

harbor235 ;

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