Enabling The Fast Leave Feature - H3C S5500-SI Series Manual

Operation Manual – Multicast Protocol
H3C S5500-SI Series Ethernet Switches
To do...
Enable the function
of simulating
member host of a
multicast group or
multicast
source/group
Note:
Each simulated host is equivalent to an independent host. For example, when
receiving an IGMP query, the simulated host corresponding to each configuration
responds respectively.
The IGMP version of the simulated host is the same as the IGMP Snooping version
current running on the device.

1.4.4 Enabling the Fast Leave Feature

By default, when receiving a group-specific IGMP leave message on a port, the switch
first sends an IGMP group-specific query message that port, rather than directly
deleting the port from the multicast forwarding table. If the switch receives no response
within a certain period of waiting time, it deletes the port from the forwarding table.
With the fast leave feature enabled, when the switch receives a group-specific IGMP
leave message on a port, the switch directly deletes this port from the forwarding table
without first sending an IGMP group-specific query to the port.
I. Configuring the fast leave feature globally
Follow these steps to configure the fast leave feature globally:
Enter system view
Enter IGMP Snooping
view
Enable the fast leave
feature
II. Configuring the fast leave feature on a port or a group ports
Follow these steps to configure the fast leave feature on a port or a group ports:
a
igmp-snooping
group-address
source-address ] vlan vlan-id
To do...
system-view
igmp-snooping
fast-leave [ vlan vlan-list ]
Chapter 1 IGMP Snooping Configuration
Use the command...
host-join
[ source-ip
Use the command...
1-11
Remarks
Required
Disabled by
default
Remarks
—
—
Required
Disabled by default