Identifying Multicast Groups

Unanswered Question
Mar 19th, 2007
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When I perform a "show ip igmp groups" on my Catalyst 4507, I see the following:

Cat4507R_Lab_Admn#sh ip igmp groups

IGMP Connected Group Membership

Group Address Interface Uptime Expires Last Reporter Vlan101 2w3d 00:02:22 Vlan101 6d11h 00:02:27 Vlan101 2w3d 00:02:25 Vlan101 1w0d 00:02:31 Vlan101 2w3d 00:02:22 Vlan101 2w3d 00:02:30

While I understand that most of these are reserved or local scoped multicast group addresses, I have not been able to identify what most of them actually are except for: cisco-rp-discovery says hp-device-disc, but that's not really what it is.

Would be grateful for feedback/ideas!

Thank you!

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