H3C Technologies H3C WX3000E Series Wireless Switches - Manual (Page 241)

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Item Description
Fast Leave
Enable or disable the fast leave function for the port.
With the fast leave function enabled on a port, the switch, when receiving an IGMP leave
message on the port, immediately deletes that port from the outgoing port list of the
corresponding forwarding table entry. Then, when receiving IGMP group-specific queries
for that multicast group, the switch will not forward them to that port. In VLANs where only
one host is attached to each port, the fast leave function helps improve bandwidth and
resource usage.
IMPORTANT:
If fast leave is enabled for a port to which more than one host is attached, when one host
leaves a multicast group, the other hosts listening to the same multicast group will fail to
receive multicast data.
Display IGMP snooping multicast entry information
1. Select Network > IGMP snooping in the navigation tree to enter the basic configuration page
shown in Figure 199 .
2. Click the plus sign (+) in front of Show Entries to display information about IGMP snooping
multicast entries, as shown in
Figure 202 .
Figure 202 Display entry information
3. Click the icon corresponding to an entry to view the detailed information of the entry, as shown
in Figure 203 .
Figure 203 Information about an IGMP snooping multicast entry
Table 71 Field description
Field Description
VLAN ID ID of the VLAN to which the entry belongs
Source Address Multicast source address, where 0.0.0.0 indicates all multicast sources.