Cisco cBR-8 Configuration And Troubleshooting Manual page 220

Displaying the Flap List Using SNMP
Attribute
ccsFlapRowStatus
ccsFlapInsertionFailNum
ccsFlapHitNum
ccsFlapMissNum
ccsFlapCrcErrorNum
ccsFlapPowerAdjustmentNum
Cisco cBR Series Converged Broadband Routers Troubleshooting and Network Management Configuration
Guide for Cisco IOS XE Fuji 16.8.x
208
Type
RowStatus
Unsigned32
Unsigned32
Unsigned32
Unsigned32
Unsigned32
Flap List Troubleshooting
Description
Control attribute for the status of this entry.
Number of times the CM comes up and
inserts itself into the network. This counter
is increased when the time between initial
link establishment and a reestablishment
was less than the threshold parameter
configured using the cable flap-list
insertion-time command or
ccsFlapInsertionTime attribute.
When the cable modem cannot finish
registration within the insertion time
(ccsFlapInsertionTime), it resends the
Initial Maintenance packet. When the
CMTS receives the packet sooner than
expected, the CMTS increments this
counter.
Number of times the CM responds to
MAC-layer station maintenance (keepalive)
messages. (The minimum hit rate is once
per 30 seconds.)
Number of times the CM misses and does
not respond to a MAC-layer station
maintenance (keepalive) message. An 8
percent miss rate is normal for the Cisco
cable interface line cards. If the CMTS
misses a ranging request within 25 msec,
then the miss number is incremented.
Number of times the CMTS upstream
receiver flagged a packet with a CRC error.
A high value indicates that the cable
upstream may have a high noise level. The
modem may not be flapping yet, but this
could become a possible problem.
Number of times the cable modem
upstream transmit power is adjusted during
station maintenance. When the adjustment
is greater than the power-adjustment
threshold, the number is incremented.