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...
wildersteinAsked:
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harbor235Commented:


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 ;}
0
wildersteinAuthor Commented:
Hi:

That's what I did.  I was in config mode.
Gives me invalid input at "snooping"
0
harbor235Commented:


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
 INTERIM SOFTWARE
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)
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harbor235Commented:


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

http://www.cisco.com/en/US/tech/tk828/technologies_white_paper09186a00800a85d1.shtml

harbor235 ;}
0
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?
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harbor235Commented:


You can use CGMP instead of IGMP, CGMP is supported


config t
cgmp leave-processing
end


See if that works

Check out the following doc

http://www.cisco.com/en/US/docs/switches/lan/catalyst2900xl_3500xl/release12.0_5_wc5/swg/swsyst.html#wp1029760

harbor235 ;}




harbor235 ;
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