View IGMP Snoop Trace Information
View the multicast group trace to track the data flow path of multicast streams.
Procedure
- In the navigation pane, expand .
 - Select IGMP.
 - Select the Snoop Trace tab.
 
Snoop Trace Field Descriptions
Use the data in the following table to use the Snoop Trace tab.
| 
 Name  | 
 Description  | 
|---|---|
| 
 GrpAddr  | 
 Displays the IP multicast address of the group traversing the router.  | 
| 
 SrcAddr  | 
 Displays the IP source address of the multicast group.  | 
| 
 OutVlan  | 
 Displays the egress VLAN ID for the multicast group.  | 
| 
 InPort  | 
 Displays the ingress port for the multicast group.  | 
| 
 InVlan  | 
 Displays the ingress VLAN ID for the multicast group.  | 
| 
 OutPort  | 
 Displays the egress port of the multicast group.  | 
| 
 Type  | 
 Displays the port type on which the snoop entry is learned.  |