
Configuring IP Multicasting and Multimedia Services
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Parameter: Estimated Groups
Path: Configuration Manager > Protocols > IP > Multicast > IGMP > Global
Default: 20
Options: 5 to 65535 groups
Function: Specifies the estimated number of groups that will be simultaneously active for
this router.
Instructions: Determine the approximate number of groups and enter the value. This allows
the router to utilize memory efficiently. Exceeding this size during router
operation will not cause an error but may cause the router to consume more
memory than required. The following groups are not maintained by IGMP; you
do not need to include them in the count: 224.0.0.1, 224.0.0.4, 224.0.0.5, and
224.0.0.6.
MIB Object ID: 1.3.6.1.4.1.18.3.5.3.13.1.4
Parameter: Version Threshold Time
Path: Configuration Manager > Protocols > IP > Multicast > IGMP > Global
Default: 540
Options: 1 to 65535 seconds
Function: The number of seconds that can elapse after IGMP detects a Version 1 query
before IGMP tries to become the designated querier.
Instructions: The value you specify should be greater than the Version 1 query rate of all
IGMP speakers on all networks directly connected to the router.
MIB Object ID: 1.3.6.1.4.1.18.3.5.3.13.1.5
Parameter: Debug
Path: Configuration Manager > Protocols > IP > Multicast > IGMP > Global
Default: None
Options: Receive
| Send | Other
Function: Causes IGMP to generate the specified log messages.
Instructions: Specify zero or more options. Set this parameter to Receive to log messages
received. Set the parameter to Send to log messages sent. Set the parameter to
Other to log other types of IGMP messages.
MIB Object ID: 1.3.6.1.4.1.18.3.5.3.13.1.6
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