Enable igmp snooping on 3500XL 12.05)

Posted on 2008-11-06
Last Modified: 2012-05-05
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...
Question by:wilderstein
    LVL 32

    Expert Comment


    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 ;}

    Author Comment


    That's what I did.  I was in config mode.
    Gives me invalid input at "snooping"
    LVL 32

    Expert Comment


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

    harbor235 ;}

    Author Comment


    #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)
    LVL 32

    Expert Comment


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

    harbor235 ;}

    Author Comment

    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?
    LVL 32

    Accepted Solution


    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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