Cisco Broadband Cable, Справочное руководство

Страница: 524 / 1278

3-28
Cisco Broadband Cable Command Reference Guide
OL-1581-08
Chapter 3 Cisco CMTS Show Commands
show cable flap-list
Table 3-8 describes the fields displayed by the show flap-list command.
Tip
In Cisco IOS Release 12.1(12)EC, Release 12.2(8)BC1, and later releases, you can add a timestamp to
show commands using the exec prompt timestamp command in line configuration mode.
Related Commands
Table 3-8 show cable flap-list Command Field Descriptions
Field Description
Mac Addr The MAC address for the CM.
CableIF The cable interface line card, including upstream, for this CM.
Ins The number of times the CM comes up and inserts itself into the
network. It can indicate intermittent downstream sync loss or
DHCP or modem registration problems.
Hit The number of times the CM responds to MAC layer keepalive
messages. (The minimum hit rate is once per 30 seconds. It can
indicate intermittent upstream, laser clipping, or common-path
distortion.
Miss The number of times the CM misses the MAC layer keepalive
message. An 8 percent miss rate is normal for the Cisco cable
interface line cards. It can indicate intermittent upstream, laser
clipping, or common-path distortion.
CRC The number of cyclic redundancy check (CRC) errors from this
CM. It can indicate intermittent upstream, laser clipping, or
common-path distortion.
P-Adj The number of times the headend instructed the CM to adjust
transmit (TX) power more than 3 dB. It can indicate amplifier
degradation, poor connections, or thermal sensitivity.
Flap The sum of P-Adj and Ins values. CMs with high flap counts have
high SIDs and might not register.
Time The most recent time that the CM dropped the connection.
Command Description
cable flap-list aging Specifies the number of days to keep a CM in the flap-list table before aging
it out of the table.
cable flap-list
insertion-time Sets the insertion time interval that determines whether a CM is placed in the
flap list.
cable flap-list miss-
threshold Specifies the miss threshold for recording a flap-list event.
cable flap-list power-
adjust threshold Specifies the power-adjust threshold for recording a CM flap-list event.
cable flap-list size Specifies the maximum number of CMs that can be listed in the flap-list
table.
clear cable flap-list Clears all the entries in the flap-list table.