Chapter 14
| Multicast Filtering
Layer 2 IGMP (Snooping and Query for IPv4)
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Parameters
These parameters are displayed:
◆ VLAN – An interface on the switch that is forwarding traffic to downstream
ports for the specified multicast group address.
◆ Group Address – IP multicast group address with subscribers directly attached
or downstream from the switch, or a static multicast group assigned to this
interface.
◆ Interface – A downstream port or trunk that is receiving traffic for the specified
multicast group. This field may include both dynamically and statically
configured multicast router ports.
◆ Up Time – Time that this multicast group has been known.
◆ Expire – Time until this entry expires.
◆ Count – The number of times this address has been learned by IGMP snooping.
Web Interface
To show multicast groups learned through IGMP snooping:
1. Click Multicast, IGMP Snooping, Forwarding Entry.
2. Select the VLAN for which to display this information.
Figure 346: Showing Multicast Groups Learned by IGMP Snooping