© 2004 Cisco Systems, Inc. All rights reserved. Printed in USA.
Presentation_ID.scr
737373
© 2004 Cisco Systems, Inc. All rights reserved.
RST-3508
9805_05_2004_c2
Multicast Forwarding Example Topology
Switchport Fas 4/3
VLAN 3
10.1.3.100
Routed Port Gig 4/1
202.202.202.100
Multicast Group
224.1.1.1
Multicast Source
201.201.201.1
Switchport Gig 1/1
VLAN 201
Catalyst
4507R B
Catalyst 4507R A
VLAN 3
747474
© 2004 Cisco Systems, Inc. All rights reserved.
RST-3508
9805_05_2004_c2
Check IGMP Group to Verify the Receiver
Has Joined the Multicast Group
cat4507R B #show ip igmp group
IGMP Connected Group Membership
Group Address Interface Uptime Expires Last
Reporter
224.0.1.40 Vlan3 03:16:16 00:02:50 10.1.3.1
224.1.1.1 Vlan3 00:00:03 00:02:56 10.1.3.100
224.1.1.1 GigabitEthernet4/1 00:00:39 00:02:20 202.202.202.100
Note: IGMP Report from a Receiver on a Port on VLAN 3 (Fas 4/3)
IGMP Report from a Receiver on a Routed Port Gig E 4/1
Switchport Fas 4/3
10.1.3.100
VLAN 3
Routed Port Gig 4/1
202.202.202.100
Multicast Group
224.1.1.1
Multicast Source
201.201.201.1
Switchport Gig 1/1
VLAN 201
Catalyst 4507R BCatalyst 4507R A