Strange behavior of a Multicast

[Pavel Stefanenko]

Hello everyone.

I have strange behavior of a Multicast, sometimes it works "like a Broadcast".

The TV, which  joined in one group, starts to recive all traffic from each channel (sometimes, from a few channel).

So content on TVs falls and freezes.

Can anyone help me to solve this problem?

A scheme of network

Multicast sources === (G2/0/22)Core-3750(Po17) ==== (Po1)T506(Fa2/0/1) ===== TV

172.19.255.40

172.19.255.41

I mirrored the traffic between an access switch and a TV and did  debug of igmp on the switches.

Examples of strange behavior, Wireshark’s log and debug from the switches in an attachment

[Reza Sharifi]

Hi,

Looking at the Wireshark output you posted, it indicates that the source is ipv4 and the destination is multicast MAC address. What make you think it is broadcast?

Ethernet II, Src: Dell_d0:14:32 (d4:ae:52:d0:14:32), Dst: IPv4mcast_01:01:19 (01:00:5e:01:01:19)

HTH

[Pavel Stefanenko]

Hello Reza. Thank you for your answer.
Perhaps, my comparison was incorrect.
When I wrote like Broadcast, I meant - each TV received traffic from each channel (sometimes, from a few channel).
If the TV, which  joined in one group, starts to recive all traffic it's look like broadcast.