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07-29-2010 03:06 PM
07-29-2010 03:06 PM
mulicast flooding with igmp-snooping enabled ?
we are running many windows2008r2 NLB clusters in "igmp multicast" mode, igmp snooping is enabled on 3com 5500G-EI, all groups are discovered, however there still flooding (multicast traffic is sent to all ports), what can it be ?
display igmp-snooping group
Total 6 IP Group(s).
Total 6 MAC Group(s).
Vlan(id):1.
Total 6 IP Group(s).
Total 6 MAC Group(s).
Static Router port(s):
Dynamic Router port(s):
IP group(s):the following ip group(s) match to one mac group.
IP group address:239.255.7.100
Static host port(s):
Dynamic host port(s):
GigabitEthernet3/0/4 GigabitEthernet3/0/5
GigabitEthernet3/0/6
MAC group(s):
MAC group address:0100-5e7f-0764
Host port(s):GigabitEthernet3/0/4 GigabitEthernet3/0/5
GigabitEthernet3/0/6
IP group(s):the following ip group(s) match to one mac group.
IP group address:239.255.7.112
Static host port(s):
Dynamic host port(s):
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08-01-2010 09:50 AM
08-01-2010 09:50 AM
Re: mulicast flooding with igmp-snooping enabled ?
up
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06-17-2015 05:53 AM
06-17-2015 05:53 AM
Re: mulicast flooding with igmp-snooping enabled ?
I'm having the same problem.
ATP FLEXNETWORK V3 | ACSA
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06-26-2015 03:19 AM
06-26-2015 03:19 AM
Re: mulicast flooding with igmp-snooping enabled ?
Hi can you try
igmp-snooping drop-unknown
under the vlan which you enabled igmp snooping
Kind Regards
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06-30-2015 10:09 AM
06-30-2015 10:09 AM
Re: mulicast flooding with igmp-snooping enabled ?
Had already tested this configuration, not worked ...
ATP FLEXNETWORK V3 | ACSA
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07-10-2015 12:17 PM
07-10-2015 12:17 PM
Re: mulicast flooding with igmp-snooping enabled ?
Does this happen to other multicast-sources aswell or just the "multicast" which microsoft windows elb uses?
Im thinking because microsoft is known to ignore rfc's (just like cisco) and want the world to adopt to their f**kups instead.