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Cisco Broadband Cable Command Reference Guide
OL-1581-08
Chapter 3 Cisco CMTS Show Commands
show cable hop
Cable6/0/U0 down 1000 * * * interface is down * * * 0 0
Cable6/0/U1 22.000 Mhz 1000 * * *set to fixed frequency * * * 31375 1912
Cable6/0/U2 26.000 Mhz 1000 * * *set to fixed frequency * * * 0 0
Cable6/0/U3 admindown 1000 * * * frequency not set * * * 0 0
Router#
show cable hop c2/0 upstream 2
Upstream Port Poll Missed Min Missed Hop Hop Corr Uncorr
Port Status Rate Poll Poll Poll Thres Period FEC FEC
(ms) Count Sample Pcnt Pcnt (sec) Errors Errors
Cable2/0/U2 admindown 1000 * * * frequency not set * * * 0 0
Router#
Table 3-9
describes the fields displayed by the
show cable hop
and
show cable hop upstream
commands.
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.
Table 3-9
show cable hop Command Field Descriptions
Field
Description
Upstream Port
The upstream port for this information line.
Port Status
Lists the status of the port. Valid states are down if frequency is
unassigned or admindown if the port is shut down. If the port is up,
this column shows the center frequency of the channel.
Poll Rate
The rate that station maintenance polls are generated (in
milliseconds).
Missed Poll Count
The number of missing polls, per codeword/FEC block.
Min Poll Sample
The number of polls in the sample, per codeword/FEC block.
Missed PollPcnt
The ratio of missing polls to the number of polls, expressed as a
percentage.
Hop Thres Pcnt
The level that the missed poll percentage must exceed to trigger a
frequency hop, expressed as a percentage.
Hop Period
The maximum rate that frequency hopping will occur (in seconds).
Corr FEC Errors
The number of correctable forward error corrections (FEC) errors
on this upstream port, per codeword/FEC block.
Uncorr FEC Errors
The number of uncorrectable FEC errors on this upstream port, per
codeword/FEC block.
Note
The
show cable hop
and
show controllers cable
commands display FEC errors per
codewords, while the
show interface cable upstream
command displays FEC errors per
packets, where a packet could contain multiple codewords.
