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IP Multicast on Cat2960 issue

Wolfgang Maier
Level 1
Level 1

Hi @all,

 

I have a weird multicast problem.

 

I´ve  setup multicast routing in our network.

 

Multicast is working so far but the Receivers attached to the Catalist 2960 Switches receive the stream in a very poor quality (pixel images, distorted sound, choppy image flow)

The Source is a VLC Stream to the group 239.193.0.1 with a TTL=12 . However the same stream on the same VLAN only on a Catalyst 3560 or 2950 is playing smoothly. Based on this information, I think there´s something wrong at the 2960 end but I can´t fugure what. igmp snooping is active and I can see the mroute and querier.

I had a look at the network utilization and on the receivers where the stream is working (attached to 3560/2950) have a network utilization of around 1Mbit/s The other receiver where the stream is choppy the network stream is around 4Mbit/s....weird.

Can someone help me out? Thank you

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