Command Manual – Multicast
H3C S7500E Series Ethernet Switches
Chapter 3 IGMP Configuration Commands
3-17
Description
Use the
igmp timer other-querier-present
command to configure the IGMP other
querier present interval on the current interface.
Use the
undo igmp timer other-querier-present
command to restore the system
default.
By default, the IGMP other querier present interval is [ IGMP query interval ] times
[ IGMP querier robustness variable ] plus [ maximum response time for IGMP general
queries ] divided by two.
Note:
The three parameters in the above-mentioned formula default to 60 (seconds), 2 and
10 (seconds) respectively, so the default IGMP other querier present interval = 60 × 2 +
10 / 2 = 125 (seconds).
Related commands:
timer other-querier-present
,
igmp timer query
,
igmp
robust-count
,
igmp max-response-time
,
display igmp interface
.
Examples
# Set the IGMP other querier present interval to 200 seconds on VLAN-interface 100.
<Sysname> system-view
[Sysname] interface vlan-interface 100
[Sysname-Vlan-interface100] igmp timer other-querier-present 200
3.1.17 igmp timer query
Syntax
igmp timer query
interval
undo igmp timer query
View
Interface view
Parameters
interval
: IGMP query interval in seconds, namely the interval between IGMP general
queries sent by the querier, with an effective range of 1 to 18,000.