Cisco Systems uBR7200 Series manual Show Cable Hop Parameter Descriptions

Page 15

Chapter 4 Troubleshooting the System

Managing Cable Modems on the HFC Network

Table 4-14 Show Cable Hop Parameter Descriptions

Field

 

Description

 

 

 

 

 

 

 

 

 

 

Upstream Port

The upstream port for this information line

 

 

 

 

 

Port Status

 

Show “down” if frequency is unassigned, “admindown” if the port is

 

 

shutdown, or the center frequency of the channel if the port is up

 

 

 

Poll Rate

 

The rate station maintenance polls are generated (msec)

 

 

 

 

 

 

Missed Poll Count

The number of missing polls

 

 

 

 

 

 

 

 

 

Min Poll Sample

The number of polls in the sample

 

 

 

 

 

Missed Poll Pcnt

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 which frequency hopping will occur (seconds)

 

 

Corr FEC Errors

The number of correctable FEC errors on this upstream port

 

 

Uncorr FEC Errors

The number of uncorrectable FEC errors on this upstream port

 

 

 

 

 

 

 

 

 

 

noisy1#show

cable hop

 

 

 

 

 

 

 

 

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

Cable3/0/U0

down

1000

* * * frequency not set

* * * 0

0

Cable3/0/U1

admindown

1000

* * * interface is down

* * * 0

0

Cable3/0/U2

admindown

1000

* * * interface is down

* * * 0

0

Cable3/0/U3

admindown

1000

* * * interface is down

* * * 0

0

Cable3/0/U4

admindown

1000

* * * interface is down

* * * 0

0

Cable3/0/U5

admindown

1000

* * * interface is down

* * * 0

0

Cable4/0/U0

10.800 Mhz 1000

0

0

-----

100%

300

0

0

Cable6/0/U0

down

1000

* * *

frequency not set

* * * 0

0

Using Cisco IOS Release 12.0(5)T1 or higher headend images, you can use the following command to obtain specific upstream interface information:

show cable hop cable-if[upstream <portnum>]

Table 4-15 Upstream Port Parameter Descriptions

 

 

Field

 

Description

 

 

 

 

 

 

 

 

 

Upstream Port

 

The upstream port for this information line

 

 

 

 

 

 

 

 

 

Port Status

 

Show “down” if frequency is unassigned, “admindown” if the port is

 

 

 

 

 

shutdown, or the center frequency of the channel if the port is up

 

 

 

 

 

 

 

 

 

Poll Rate

 

The rate station maintenance polls are generated (msec)

 

 

 

 

 

 

 

 

 

Missed Poll Count

 

The number of missing polls

 

 

 

 

 

 

 

 

 

Min Poll Sample

 

The number of polls in the sample

 

 

 

 

 

 

 

 

 

Missed Poll Pcnt

 

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 at which frequency hopping will occur (seconds)

 

 

 

 

 

 

 

 

 

 

 

 

Cisco uBR7200 Series Universal Broadband Router Software Configuration Guide

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

78-5897-01

 

 

 

 

4-15

 

 

 

 

 

 

Image 15
Contents Troubleshooting the System Managing Cable Modems on the HFC Network Configure Sync Message IntervalVerify Sync Message Interval Activate Cable Modem AuthenticationVerify Cable Modem Authentication Activate Cable Modem Upstream Address VerificationCMTS01config-if#cable source-verify dhcp CMTS01config-if#no cable source-verifyVerify Cable Modem Upstream Address Verification Automatic CMTS01config-if#no cable insertion-intervalCMTS01config-if#cable insertion-interval max CMTS01config-if#cable insertion-intervalConfigure Per Modem Filters Configure access lists to be specified on a Configure Cable Modem Registration Timeout Clear Cable Modem ResetCMTS01config-if#cable registration-timeout n Clear Cable Modem Counters Verify Clear Cable Modem ResetVerify Clear Cable Modem Counters Configure Traffic ShapingConfigure Downstream Rate Limiting and Shaping Configure Upstream Rate Limiting and ShapingCMTS01# show interface c3/0 sid 1 counters CMTS01config-if#nocable upstream n1 rate-limitBlind Strategies and Time Scheduled Combined Token-bucketGuided Frequency Hop Field Description Sample outputShow Cable Hop Command Spectrum Management Debug and Test Commands14 Show Cable Hop Parameter Descriptions Polling Cable Modems Debug and Test CommandsVerifying Remote Query Information Enable SnmpConfigure Remote Modem Monitoring Allows you to configure accessUnderstanding Show Command Responses General Show CommandsMonitoring and Maintaining Remote Querying Show Cable Modem See the sample command output below Page SID Show Cable Modem Maintenance Cable modem cable 3/0 upstream 0 unregisteredCable modem cable 3/0 upstream 0 offline Show Interface Cable UBR7200#show cable modem maintenanceMTU CRC Router# show interface cable 6/0 downstream Field Description18 Show Interface Cable Upstream Command Field Descriptions ATP Enhanced Show Interface Upstream Output Cable slot 3, port Show Interface Cable SIDConnectivity Router# show interface c3/0 sid counters verboseShow Router# show interface c3/0 sid connectivityRouter# show interface c3/0 sid 1 counters Troubleshooting Using Cable Flap Lists Show Cable QoS ProfileUBR7200#show cable qos profile Page Page UBR7200#show cable flap Display the Flap ListMAC ID Statistic DescriptionPlant troubleshooting. The CRC counter indicates Troubleshoot with the Flap List Verify Cable Flap List Insertion Time Set Cable Flap List AgingSet Cable Flap List Insertion Time Verify Cable Flap List AgingSet Cable Flap List Power Adjustment Threshold Verify Cable Flap List Power Adjustment ThresholdSet Cable Flap List Miss Threshold Verify Cable Flap List Size Set Cable Flap List SizeClear Cable Flap List Verify Cable Flap List Miss ThresholdCustomize Other Flap List Values and Related Commands Performing Amplitude Averaging Enable or Disable Power AdjustmentSyntax Valid Values Set Frequency Threshold to Affect Power AdjustmentSetting Downstream Test Signals Configure Unmodulated Test SignalsStep Command Purpose Pinging Unresponsive Cable Modems Configure Prbs Test SignalsVerify Test Signal Output Step CommandUsing Cable Interface Debug Commands Verify the PingDebug Cable ARP Requests Debug Baseline Privacy Activity Debug Cable MAC Protocol ErrorsDebug Environmental Monitor Messages Activate Debug of Baseline PrivacyActivate QoS Debug Debug Cable MapsDebug Cable Modems Debug Cable PHY MessagesDebug Cable Modem Registration Requests Debug Cable Modem Reset MessagesDebug Cable Modem Ranging Messages Debug Upstream MessagesDebug Upstream Channel Change UCC Messages Debug Spectrum ManagementDebug Channel Allocations Debug Cmts TransmissionsShow diag Show frame-clocks Show tech support Show version Managing the Cisco uBR7246 VXR Clock CardDebug Upstream Channel Description UCD Messages Clear Clock CountersCable clock force primary secondary no cable clock force Force Alternate ClockSet Midplane TDM Clock as Primary Reference Display Clock ValuesShow controllers clock-reference Show Clock Diagnostic InformationShow Clock Hardware Information and Register Values Router# show cable clock33 describes the fields shown in the show diag display Show Clock Frames Show General InformationRouter# show frame-clocks