D-Link DES-3226L Reference Manual page 170

DES-3226L Layer 2 Fast Ethernet Switch User's Guide
config igmp_snooping querier
the following IGMP message intervals:
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•
•
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last_member_query_interval <sec> − The
maximum amount of time between group-
specific query messages, including those
Group member interval—Amount of
time that must pass
multicast router decides there are
no more members of a group on a
network. This interval is calculated
as follows: (robustness variable
x query interval)
query response interval).
Other querier present
Amount of time that must pass
before a multicast router decides
that there is no longer another
multicast router that is the querier.
This interval is calculated
follows: (robustness variable x
query interval) +
query response interval).
Last member query count—Number
of group-specific queries sent before
the router assumes there are no
local members of a group. The
default number is the value of the
robustness variable.
By default, the robustness variable
is set to 2. You might want to
increase this value if you expect a
subnet to be lossy.
170
before a
+ (1 x
interval—
as
(0.5 x