Cisco Broadband Cable Command Reference Guide

Chapter 2 Cisco Cable Modem Termination System Commands
Related Commands
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Table 2-19 show cable hop Command Field Descriptions
Cisco Broadband Cable Command Reference Guide
show cable hop
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.
Min Poll Sample The number of polls in the sample.
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. FECs measure noise.
Uncorr FEC Errors The number of uncorrectable FEC errors on this upstream port.
Tip In Cisco IOS Release 12.1(12)EC, 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.
Command Description
cable spectrum-group
hop period
Changes the minimum time between frequency hops.
cable spectrum-group
hop threshold
Specifies a frequency hop threshold for a spectrum group.
cable upstream Configures the priority of the corrective actions to be taken when a frequency
hop-priority
hop is necessary due to ingress noise on the upstream.
cable upstream Configures the upstream for the CNR and FEC threshold values to be used
threshold
in determining the allowable noise levels.
show cable host Displays the statistics for the host behind the CM.
show cable modem Displays CM configuration settings.
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