Cisco Systems uBR7200 Series manual See the sample command output below

Page 20

Chapter 4 Troubleshooting the System

Understanding Show Command Responses

See the sample command output below:

router# show

cable modem

 

 

 

 

 

 

Interface

Prim

Online

Timing Rec

QoS

CPE IP address

MAC address

 

Sid

State

Offset Power

 

 

 

 

Cable3/0/U0

1

online

2257

0.00

3

0

10.30.128.142

0090.8330.0217

Cable3/0/U0

2

online

2262

*-0.50

3

0

10.30.128.145

0090.8330.020f

Cable3/0/U0

3

online

2260

0.25

3

0

10.30.128.146

0090.8330.0211

Cable3/0/U0

4

online

2256

*0.75

3

0

10.30.128.143

0090.8330.0216

Cable3/0/U0

5

online

2265

*0.50

3

0

10.30.128.140

0090.8330.0214

Cable3/0/U0

6

online

2256

0.00

3

0

10.30.128.141

0090.8330.0215

Cable3/0/U0

7

online

4138

!-1.00

3

1

10.30.128.182

0050.7366.124d

Cable3/0/U0

8

online

4142

!-3.25

3

1

10.30.128.164

0050.7366.1245

Cable3/0/U0

9

online

4141

!-3.00

3

1

10.30.128.185

0050.7366.17e3

Cable3/0/U0

10

online

4142

!-2.75

3

0

10.30.128.181

0050.7366.17ab

Cable3/0/U0

11

online

4142

!-3.25

3

1

10.30.128.169

0050.7366.17ef

The show cable modem indicates when the Cisco uBR7200 series router has detected an unstable return path for a particular CM and has compensated with a power adjustment. An asterisk appears in the power adjustment field for a CM when a power adjustment has been made; an exclamation point appears when the CM has reached its maximum power transmit level and cannot increase its power level any further.

Columns are described below:

•The prim Sid column reveals the primary (lifeline) service identifier assigned to the cable modem.

•The SID column is the service identifier.

•The Online State column reveals the state of the modem; values include:

–offline—Cable modem considered offline

–offline time—the time the cable modem went offline; the format is the same as other show cable modem commands (month, day, time, and year)

–init (r1)—Cable modem sent initial ranging

–init (r2)—Cable modem is ranging

–init (rc)—Cable modem ranging complete

–init (d)—Dhcp request received

–init (i)—Dhcp reply received; IP address assigned

–init (o)—Option file transfer started

–init (t)—TOD exchange started

–online—Cable modem registered, enabled for data

–online(d)—Cable modem registered, but network access for the cable modem is disabled

–online(pk)—Cable modem registered, BPI enabled and KEK assigned

–online(pt)—Cable modem registered, BPI enabled and TEK assigned

–reject (m)—Cable modem did attempt to register; registration was refused due to bad MIC

–reject (c)—Cable modem did attempt to register; registration was refused due to bad COS

–reject (pk)—KEK modem key assignment rejected

–reject (pt)—TEK modem key assignment rejected

•The Rec Power column contains the nominal receive power in decibels for this SID

Cisco uBR7200 Series Universal Broadband Router Software Configuration Guide

4-20

78-5897-01

 

 

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Contents Troubleshooting the System Configure Sync Message Interval Managing Cable Modems on the HFC NetworkActivate Cable Modem Authentication Verify Cable Modem AuthenticationActivate Cable Modem Upstream Address Verification Verify Sync Message IntervalVerify Cable Modem Upstream Address Verification CMTS01config-if#cable source-verify dhcpCMTS01config-if#no cable source-verify CMTS01config-if#no cable insertion-interval CMTS01config-if#cable insertion-interval maxCMTS01config-if#cable insertion-interval AutomaticConfigure Per Modem Filters Configure access lists to be specified on a CMTS01config-if#cable registration-timeout n Configure Cable Modem Registration TimeoutClear Cable Modem Reset Verify Clear Cable Modem Reset Clear Cable Modem CountersConfigure Traffic Shaping Configure Downstream Rate Limiting and ShapingConfigure Upstream Rate Limiting and Shaping Verify Clear Cable Modem CountersCMTS01config-if#nocable upstream n1 rate-limit Blind Strategies and Time Scheduled CombinedToken-bucket CMTS01# show interface c3/0 sid 1 countersGuided Frequency Hop Sample output Field DescriptionSpectrum Management Debug and Test Commands Show Cable Hop Command14 Show Cable Hop Parameter Descriptions Debug and Test Commands Polling Cable ModemsEnable Snmp Configure Remote Modem MonitoringAllows you to configure access Verifying Remote Query InformationMonitoring and Maintaining Remote Querying Understanding Show Command ResponsesGeneral Show Commands Show Cable Modem See the sample command output below Page SID Cable modem cable 3/0 upstream 0 offline Show Cable Modem MaintenanceCable modem cable 3/0 upstream 0 unregistered UBR7200#show cable modem maintenance Show Interface CableMTU CRC Field Description Router# show interface cable 6/0 downstream18 Show Interface Cable Upstream Command Field Descriptions ATP Enhanced Show Interface Upstream Output Show Interface Cable SID Cable slot 3, portRouter# show interface c3/0 sid counters verbose ShowRouter# show interface c3/0 sid connectivity ConnectivityRouter# show interface c3/0 sid 1 counters UBR7200#show cable qos profile Troubleshooting Using Cable Flap ListsShow Cable QoS Profile Page Page Display the Flap List UBR7200#show cable flapStatistic Description MAC IDPlant troubleshooting. The CRC counter indicates Troubleshoot with the Flap List Set Cable Flap List Aging Set Cable Flap List Insertion TimeVerify Cable Flap List Aging Verify Cable Flap List Insertion TimeSet Cable Flap List Miss Threshold Set Cable Flap List Power Adjustment ThresholdVerify Cable Flap List Power Adjustment Threshold Set Cable Flap List Size Clear Cable Flap ListVerify Cable Flap List Miss Threshold Verify Cable Flap List SizeCustomize Other Flap List Values and Related Commands Enable or Disable Power Adjustment Performing Amplitude AveragingSet Frequency Threshold to Affect Power Adjustment Syntax Valid ValuesStep Command Purpose Setting Downstream Test SignalsConfigure Unmodulated Test Signals Configure Prbs Test Signals Verify Test Signal OutputStep Command Pinging Unresponsive Cable ModemsDebug Cable ARP Requests Using Cable Interface Debug CommandsVerify the Ping Debug Cable MAC Protocol Errors Debug Environmental Monitor MessagesActivate Debug of Baseline Privacy Debug Baseline Privacy ActivityDebug Cable Maps Debug Cable ModemsDebug Cable PHY Messages Activate QoS DebugDebug Cable Modem Reset Messages Debug Cable Modem Ranging MessagesDebug Upstream Messages Debug Cable Modem Registration RequestsDebug Spectrum Management Debug Channel AllocationsDebug Cmts Transmissions Debug Upstream Channel Change UCC MessagesManaging the Cisco uBR7246 VXR Clock Card Debug Upstream Channel Description UCD MessagesClear Clock Counters Show diag Show frame-clocks Show tech support Show versionForce Alternate Clock Set Midplane TDM Clock as Primary ReferenceDisplay Clock Values Cable clock force primary secondary no cable clock forceShow Clock Diagnostic Information Show Clock Hardware Information and Register ValuesRouter# show cable clock Show controllers clock-reference33 describes the fields shown in the show diag display Router# show frame-clocks Show Clock FramesShow General Information
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