Motorola nvg589 Administrator's Hanbook page 140

Administrator's Handbook
tion Profile.
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Last Member Query Interval – the amount of time in tenths of a second that the IGMP gateway waits to
receive a response to a Group-Specific Query message. The last member query interval is also the amount of
time in seconds between successive Group-Specific Query messages. The default last member query interval
is 1 second (10 deci-seconds).
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Last Member Query Count – the number of Group-Specific Query messages sent before the gateway
assumes that there are no members of the host group being queried on this interface. The default last member
query count is 2.
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Fast Leave – set to off by default, fast leave enables a non-standard expedited leave mechanism. The querier
keeps track of which client is requesting which channel by IP address. When a leave message is received, the
querier can check its internal table to see if there are any more clients on this group. If there are none, it imme-
diately sends an IGMP leave message to the upstream querier.
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Log Enable – If set to on, all IGMP messages on both the LAN and the WAN will be logged.
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Wireless Multicast to Unicast conversion – Only available if IGMP Snooping is enabled. If set to on, the
Gateway replaces the multicast MAC-address with the physical MAC-address of the wireless client. If there is
more than one wireless client interested in the same multicast group, the Gateway will revert to multicasting
the stream immediately. When one or more wireless clients leave a group, and the Gateway determines that
only a single wireless client is interested in the stream, it will once again unicast the stream.
set ip igmp querier-version [ 1 | 2 | 3 ]
Sets the IGMP querier version: version
other hosts that are limited to v1, for backward compatibility, select 1; otherwise, allow the default 3.
set ip igmp robustness value
Sets IGMP robustness range: from 2 – 255. The default is 2.
set ip igmp query-interval value
Sets the query-interval range: from 10 seconds – 600 seconds, The default is 125 seconds.
set ip igmp query-response-interval value
Sets the query-response interval range: from 5 deci-seconds (tenths of a second) – 255 deci-seconds. The default
is 100 deci-seconds.
set ip igmp unsolicited-report-interval value
Sets the unsolicited report interval: the amount of time in seconds between repetitions of a particular computer's
initial report of membership in a group. The default is 10 seconds.
set ip igmp fast-leave [ off | on ]
Sets fast leave on or off. Set to on by default, fast leave enables a non-standard expedited leave mechanism.
The querier keeps track of which client is requesting which channel by IP address. When a leave message is
received, the querier can check its internal table to see if there are any more clients on this group. If there are
none, it immediately sends an IGMP leave message to the upstream querier.
set ip igmp max-group-memberships value
Sets the maximum number of IGMP group memberships. Default is 20.
set ip igmp fwd-admin-groups [ off | on ]
Turns Admin group forwarding off or on. Default is off.
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