Network Router User Manual

BSR 2000 Command Reference Guide Release 1.0
11-168 MGBI 526363-001-00 Rev. B
show cable flap-list
The show cable flap-list command displays the cable flap-list and provides the
following information:.
MAC ID Customer account or street address.
Cable IF Upstream port.
Hit Number of times modem responds to mac
layer keep alive messages, minimum hit rate
one time/30 seconds, can indicate intermittent
upstream, laser clipping, or common-path
distortion. Count should be much higher than
Miss count, if not, modem having problem
maintaining the connection due to upstream
problem, flap count increments each time the
system transitions from a Hit to a Miss.
Miss Number of times modem misses the mac
layer keep-alive message, 8% normal, can
indicate intermittent upstream, laser clipping,
common path distortion.
Ins Number of times the modem comes up and
connect to the network, number of times RF
link reestablished more frequently than time
period configured in the cable flap-list
insertion time command.
P-Adj Number of times the CMTS instructed the
modem to adjust transmit (TX) power beyond
threshold configured with the cable flap-list
power-adjust threshold command, can
indicate unacceptable connections, thermal
sensitivity.
Flap Total of P-Adj and Ins values, high flap-count
modems have high SIDs and may not register.
Rng Number of times the modem exceeded the
missed ranging threshold.