D-Link DES-3250TG, Command Line Interface Reference Manual

Page: 232 / 322

DES-3250TG Layer 2 Fast Ethernet Switch User’s Guide
232
config igmp_snooping querier
Purpose Used to configure the time in seconds between
general query transmissions, the maximum time
in seconds to wait for reports from members,
the permitted packet loss that guarantees IGMP
snooping.
Syntax
config igmp_snooping querier
[<vlan_name>|all] {query_interval
<sec>|max_response_time
<sec>|robustness_variable
<value>|last_member_query_interval
<sec>|state [enabled|disabled]
Description This command configures IGMP snooping
querier.
Parameters
<vlan_name>
−
The name of the VLAN for
which IGMP snooping querier is to be
configured.
query_interval <sec>
−
Specifies the amount of
time in seconds between general query
transmissions. The default setting is 125
seconds.
max_response_time <sec>
−
Specifies the
maximum time in seconds to wait for reports
from members. The default setting is 10
seconds.
robustness_variable <value>
−
Provides fine-
tuning to allow for expected packet loss on a
subnet. The value of the robustness variable is
used in calculating the following IGMP message
intervals:
•
Group member interval—Amount of
time that must pass before a multicast