Cisco Systems SLM2008RF manual Multicast, Configuring Igmp Settings

Advanced Configuration	5
Multicast

•Querier—Indicates the IGMP router is active or idle.

•Queries Transmitted—Displays the number of queries that have been transmitted.

•Queries Received—Displays the number of queries that have been received.

•v1 Reports—Displays the number of IGMP v1 report packets that have been received by the switch.

•v2 Reports—Displays the number of IGMP v2 report packets that have been received by the switch.

•v2 Leaves—Displays the number of IGMP v2 leave packets that have been received by the switch.

STEP 3 To update the IGMP status information, click Refresh.

Multicast

Configuring IGMP Settings

When IGMP Snooping is enabled globally, all IGMP packets are forwarded to the CPU. The CPU analyzes the incoming packets and determines:

•The ports that want to join which Multicast groups and issue the IGMP join packet

•The ports that have Multicast routers generating IGMP queries

Ports requesting to join a specific Multicast group issue an IGMP report, specifying that Multicast group is accepting members. This results in the creation of the Multicast filtering database.

Cisco SLM2008 8-Port Gigabit Smart Switch with PD and AC Power Administration Guide 47