Motorola 2247-N8 Specifications download pdf (Page 70)

Administrator’s Handbook

v1 routers are present on a network. IGMP forwarding is enabled per IP Profile and WAN Connec-

tion Profile.

◆ 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).

◆ 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.

◆ 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.

◆ Log Enable – If set to on, all IGMP messages on both the LAN and the WAN will be logged.

◆ 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 1, version 2, or version 3. If you know you will be communicating with

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 last-member-interval value

Sets the 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 is 1 second (10 deci-seconds).

set ip igmp last-member-count value

Sets the 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 is 2.

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Motorola 2247-N8 Specifications Page 70