![Huawei Quidway S5600 Operation Manual Download Page 452](http://html.mh-extra.com/html/huawei/quidway-s5600/quidway-s5600_operation-manual_169841452.webp)
Operation Manual – Multicast Protocol
Quidway S5600 Series Ethernet Switches-Release 1510
Chapter 6 IGMP Configuration
Huawei Technologies Proprietary
6-8
If the host runs IGMP version 1, it does not send IGMP leave messages when leaving a
group, so the conditions will be the same as described in the procedure above.
III. IGMP querier substitution rules
The lifetime of an IGMP querier is limited. When the IGMP querier times out, the querier
will stop sending query messages and another router will replace the IGMP querier.
IV. The maximum query time of IGMP packets
When the host receives a query message, it will set a timer for each of its multicast
groups. The timer value is selected from 0 to the maximum response time at random.
When the value of a timer decreases to 0, the host will send the membership
information of the multicast group.
Through configuring the reasonable maximum response time, you can enable the host
to respond to the query information quickly and enable the Layer 3 switch to understand
the membership information of multicast groups quickly.
Table 6-3
Configure IGMP query packets
Operation
Command
Description
Enter system view
system
-
view
—
Enter VLAN interface
view
interface
Vlan
-
interface
interface-number
—
Enable IGMP on the
current interface
igmp enable
Required
IGMP is disabled on the
interface by default.
Configure the query
interval
igmp
timer
query
seconds
Optional
The query interval is 60
seconds by default.
Configuring the interval of
sending IGMP
group-specific query
packets
igmp
lastmember-queryinterv
al seconds
Optional
By default, the interval of
sending IGMP
group-specific query
packets is 1 second.
Configuring the times of
sending IGMP
group-specific query
packets
igmp robust-count
robust-value
Optional
By default, the times of
sending IGMP
group-specific query
packets is 2.