Avaya Configuring IP Multicasting Services User Manual Page 90

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Configuring IP Multicasting Services
A-16 114064 Rev. A
Parameter: Interface Query Rate
Path: Configuration Manager > Protocols > IP > Multicast > IGMP > Entry
Default: 120 seconds
Options: 0 to 4096 seconds
Function: Specifies, in seconds, how often the router sends out group membership queries
on the interface.
Instructions: If there are no multicast hosts on this circuit, set the parameter to zero to disable
queries. Specifying zero affects queries only. The router still forwards multicast
datagrams on this circuit. If another IGMP router on this network has taken on
the query role, this router will not send out queries unless it has not heard of any
queries within the number of seconds specified by the Designated Router
Timeout parameter.
MIB Object ID: 1.3.6.1.4.1.18.3.5.3.13.2.1.5
Parameter: Interface Membership Timeout
Path: Configuration Manager > Protocols > IP > Multicast > IGMP > Entry
Default: 260 seconds
Options: 30 to 8192 seconds
Function: Specifies, in seconds, the amount of time that a local group membership is
valid without the receipt of a subsequent report for that group.
Instructions: The suggested value is (2 times the Query Rate) + 20.
MIB Object ID: 1.3.6.1.4.1.18.3.5.3.13.2.1.6
Parameter: Designated Router Timeout
Path: Configuration Manager > Protocols > IP > Multicast > IGMP > Entry
Default: 140 seconds
Options: 10 to 8192 seconds
Function: Specifies, in seconds, the amount of time that can elapse after the last host
query message before the IGMP designated router is considered down.
Instructions: The value you specify should be greater than the query rate of all IGMP
routers on the network.
MIB Object ID: 1.3.6.1.4.1.18.3.5.3.13.2.1.7
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