(0.0.0.0, 224.1.1.1)
Host slots (0 in total):
Host ports (2 in total):
GE2/1/3
GE2/1/4
The output shows the following information:
Host A and Host B have joined the multicast group 224.1.1.1 through the member ports Ethernet 1/4
•
and Ethernet 1/3 on Switch A, respectively.
Host A and Host B have failed to join the multicast group 224.2.2.2.
•
Static port configuration example
Network requirements
As shown in
Router A runs IGMPv2 and serves as the IGMP querier. Switch A, Switch B, and Switch C run
•
IGMPv2 snooping.
Host A and host C are permanent receivers of multicast group 224.1.1.1.
•
Configure static ports to meet the following requirements:
To enhance the reliability of multicast traffic transmission, configure GigabitEthernet 2/1/3 and
•
GigabitEthernet 2/1/5 on Switch C as static member ports for multicast group 224.1.1.1.
Suppose the STP runs on the network. To avoid data loops, the forwarding path from Switch A to
•
Switch C is blocked under normal conditions. Multicast data flows to the receivers attached to
Switch C only along the path of Switch A—Switch B—Switch C. When this path is blocked, at least
one IGMP query-response cycle must be completed before multicast data flows to the receivers
along the path of Switch A—Switch C. In this case, the multicast delivery is interrupted during the
process. For more information about the STP, see Layer 2—LAN Switching Configuration Guide.
Configure GigabitEthernet 2/1/3 on Switch A as a static router port. Then, multicast data can
flow to the receivers nearly uninterruptedly along the path of Switch A—Switch C when the path
of Switch A—Switch B—Switch C is blocked.
(00:03:23)
(00:04:10)
Figure
13:
33