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Advanced Configuration
Multicast
STEP 3
Multicast
Cisco SLM2008 8-Port Gigabit Smart Switch with PD and AC Power Administration Guide
•
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.
To update the IGMP status information, click Refresh.
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.
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