Setting Flap List Parameters - Motorola BSR 2000 Configuration And Management Manual

BSR 2000 Configuration and Management Guide

Setting Flap List Parameters

Flap list parameters are configured to define a criteria for the proper functioning of
your cable network.
When a CM makes an insertion request more frequently than the defined insertion
time (the time allowed for CMs to complete registration), the CM is placed in the flap
list for recording. When the CM power adjustment meets or exceeds its predefined
threshold, the CM is placed in the flap list. You can specify the power adjustment
threshold to a value that will cause a flap-list event to be recorded. A miss rate is the
number of times a CM does not acknowledge a MAC layer keepalive message from a
CMTS. You can specify the number of seconds to record and retain flapping activity
for the CMs connected to the CMTS. The number of CMs that can be recorded in the
flap list is 8192 CMs.
Use the following options to set flap list parameters:
1. Use the cable flap-list aging command in Global Configuration mode to specify
2. Use the cable flap-list insertion-time command in Global Configuration mode
3. Use the cable flap-list percentage-threshold command in Cable Interface
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flap list aging, the number of minutes a CM is kept in the flap list.
MOT(config)# cable flap-list aging <1-860400>
where:
1-860400 is the flap list aging value, expressed in minutes. The default flap
list aging value is 1440.
to specify the flap list insertion time:
MOT(config)# cable flap-list insertion-time <1-86400>
where:
1-86400 is the flap list insertion time, expressed in seconds. The default flap
list insertion time is 60.
Configuration mode to specify the CM miss percentage:
MOT(config)# cable flap-list percentage-threshold <1-100>
where:
1-100 is the CM miss percentage.
MGBI
Release 1.0
526360-001-00 Rev. B