10-05-2005 07:02 AM - edited 03-03-2019 12:16 AM
Hi all,
I got the following infrastruture :
Multicast Switch<-> Switch 2950 #1<-> Switch 2950 #2
I got the following problem :
On switch #2, all IGMP reports sent by client are sent to the multicast switch but also to all ports of switch#2.
It is not the case for the switch #1. I compare the two configurations of the switches and I do not see a difference for IGMP/VLAN configuration. The software is the same for the two switches.
Have you got any idea to solve it ?
Best regards
Ludovic
10-05-2005 08:47 AM
Ludovic
Is there perhaps a different VLAN for access ports on switch#2 than on switch#1? By default the multicast will be flooded to all access ports in the VLAN but not to other VLANs. Is it possible that switch#1 has IGMP snooping enabled?
HTH
Rick
10-05-2005 09:38 PM
Thanks for your answer Rick.
I have two VLANs (1 and 2) that are present on switch #1 and switch #2.
Multicast streams are present on the two VLANs.
IGMP snooping is not set for VLAN2 (and it is intentionaly done) on the two switches. I manually configure the ports of switch#2 to static access to VLAN 1 or 2 so the switch #2 has not to send multicast report to all ports as I set the VLAN/port.
Why are the IGMP reports sent to all wherease multicast stream are not flooded to all ?
Regards,
Ludovic
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