Multicast Nortel to Cisco across MLT/Trunk Port 1

[dibthree]

Nortel 4526GTX connect to Cisco 2960G via MLT/Trunk Port.

Trunking seems to be working correctly except multicast traffic does not seem to be getting through.

PC connected to Nortel on a specific VLAN arrives on the correct VLAN on the Cisco switch and can log onto the multicast server connected to the Cisco.

Multicast device connected to the same port on the Nortel does not find the multicast server on the Cisco. If the device is connected to the the cisco directly multcast works.

What is the trick to get multicast traffic to flow from a Nortel to a Cisco via a MLT/Trunk port?

 

[anthonyanderberg]

Is the problem that the multicast join doesn't make it to the Cisco side or that the stream doesn't flow back? Something like "show ip igmp group x.x.x.x" on the Cisco side should show the active ports. If you didn't think the join was making it to the Cisco side you could test by doing a static join to force the stream to that interface/vlan - "ip igmp static-group x.x.x.x" should do the trick.

 

[dibthree]

That did it. Thanks.