Enabling IGMPv2 Compatibility on 6509

Unanswered Question
Oct 21st, 2009

The issue is a bit tricky, we have two multicast queriers, one that requests using v3, and one that requests using v2.

If at anytime the v2 membership is requested, the v3 membership will halt 3-5 minutes later.

Is there a way to allow both memberships to co-exist?

The following is the vlan configuration:

interface Vlan<removed>

description <removed>

ip address <removed> 255.255.254.0

ip pim dense-mode

ip multicast ttl-threshold 2

ip igmp version 3

ip igmp explicit-tracking

ipv6 address 2007::/64 eui-64

ipv6 dhcp server <removed>

And here is the version info:

Cisco Internetwork Operating System Software

IOS (tm) s72033_rp Software (s72033_rp-JK9O3SV-M), Version 12.2(18)SXD4, RELEASE SOFTWARE (fc1)

Technical Support: http://www.cisco.com/techsupport

Copyright (c) 1986-2005 by cisco Systems, Inc.

Compiled Tue 22-Mar-05 12:41 by yiyan

Image text-base: 0x4002100C, data-base: 0x42700000

ROM: System Bootstrap, Version 12.2(17r)S2, RELEASE SOFTWARE (fc1)

BOOTLDR: s72033_rp Software (s72033_rp-JK9O3SV-M), Version 12.2(18)SXD4, RELEASE SOFTWARE (fc1)

System image file is "sup-bootflash:s72033-jk9o3sv-mz.122-18.SXD4.bin"

cisco WS-C6509 (R7000) processor (revision 2.0) with 458720K/65536K bytes of memory.

Processor board ID SCA043005T6

SR71000 CPU at 600Mhz, Implementation 0x504, Rev 1.2, 512KB L2 Cache

Last reset from power-on

Bridging software.

X.25 software, Version 3.0.0.

SuperLAT software (copyright 1990 by Meridian Technology Corp).

TN3270 Emulation software.

23 Virtual Ethernet/IEEE 802.3 interface(s)

48 FastEthernet/IEEE 802.3 interface(s)

106 Gigabit Ethernet/IEEE 802.3 interface(s)

1917K bytes of non-volatile configuration memory.

8192K bytes of packet buffer memory.

65536K bytes of Flash internal SIMM (Sector size 512K).

Configuration register is 0x2102

I have this problem too.
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Giuseppe Larosa Fri, 10/23/2009 - 00:17

Hello Shandon,

I would suggest to use

debug ip icmp

to understand what is happening.

to be noted your IOS release is rather old.

I will try to search with bug toolkit.

Hope to help

Giuseppe

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