Cisco Systems uBR7200 Series manual Debug Spectrum Management, Debug Channel Allocations

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Chapter 4 Troubleshooting the System

Using Cable Interface Debug Commands

Debug Spectrum Management

This command activates debugging of spectrum management (frequency agility) on the HFC network. When this command is activated, messages generated because of spectrum group activity are displayed on the Cisco uBR7200 series console. Spectrum group activity can be additions or changes to spectrum groups, or frequency and power level changes controlled by spectrum groups. The format for the command follows:

CMTS01# debug cable specmgmt

To deactivate debugging of cable spectrum management, use the no debug cable specmgmt command:

CMTS01# no debug cable specmgmt

Debug Channel Allocations

This command activates debugging of channel allocations on the HFC network. When this command is activated, messages generated when channels are allocated to cable modems on the HFC network are displayed on the Cisco uBR7200 series console. The format for the command follows:

CMTS01# debug cable startalloc

To deactivate debugging of cable channel allocations, use the no debug cable startalloc command:

CMTS01# no debug cable startalloc

Debug CMTS Transmissions

This command activates debugging of transmissions from the Cisco uBR7200 series across the HFC network. When this command is activated, messages generated at the headend are displayed on the Cisco uBR7200 series console. The format for the command follows:

CMTS01# debug cable transmit

To deactivate debugging of cable transmissions, use the no debug cable transmit command:

CMTS01# no debug cable transmit

Debug Upstream Channel Change (UCC) Messages

This command activates debugging of upstream channel change (UCC) messages generated when cable modems request or are assigned a new channel. When this command is activated, messages related to upstream channel changes are displayed on the Cisco uBR7200 series console. The format for the command follows:

CMTS01# debug cable ucc

To deactivate debugging of cable upstream channel changes, use the following command:

CMTS01# no debug cable ucc

Cisco uBR7200 Series Universal Broadband Router Software Configuration Guide

 

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Contents Troubleshooting the System Managing Cable Modems on the HFC Network Configure Sync Message IntervalVerify Cable Modem Authentication Activate 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#cable insertion-interval max CMTS01config-if#no cable insertion-intervalCMTS01config-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 Clear Cable Modem Counters Verify Clear Cable Modem ResetConfigure Downstream Rate Limiting and Shaping Configure Traffic ShapingConfigure Upstream Rate Limiting and Shaping Verify Clear Cable Modem CountersBlind Strategies and Time Scheduled Combined CMTS01config-if#nocable upstream n1 rate-limitToken-bucket CMTS01# show interface c3/0 sid 1 countersGuided 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 CommandsConfigure Remote Modem Monitoring Enable SnmpAllows 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 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 SIDShow Router# show interface c3/0 sid counters verboseRouter# 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 UBR7200#show cable flap Display the Flap ListMAC ID Statistic DescriptionPlant troubleshooting. The CRC counter indicates Troubleshoot with the Flap List Set Cable Flap List Insertion Time Set Cable Flap List AgingVerify 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 Clear Cable Flap List Set Cable Flap List SizeVerify Cable Flap List Miss Threshold Verify Cable Flap List SizeCustomize Other Flap List Values and Related Commands Performing Amplitude Averaging Enable or Disable Power AdjustmentSyntax Valid Values Set Frequency Threshold to Affect Power AdjustmentStep Command Purpose Setting Downstream Test SignalsConfigure Unmodulated Test Signals Verify Test Signal Output Configure Prbs Test SignalsStep Command Pinging Unresponsive Cable ModemsDebug Cable ARP Requests Using Cable Interface Debug CommandsVerify the Ping Debug Environmental Monitor Messages Debug Cable MAC Protocol ErrorsActivate Debug of Baseline Privacy Debug Baseline Privacy ActivityDebug Cable Modems Debug Cable MapsDebug Cable PHY Messages Activate QoS DebugDebug Cable Modem Ranging Messages Debug Cable Modem Reset MessagesDebug Upstream Messages Debug Cable Modem Registration RequestsDebug Channel Allocations Debug Spectrum ManagementDebug Cmts Transmissions Debug Upstream Channel Change UCC MessagesDebug Upstream Channel Description UCD Messages Managing the Cisco uBR7246 VXR Clock CardClear Clock Counters Show diag Show frame-clocks Show tech support Show versionSet Midplane TDM Clock as Primary Reference Force Alternate ClockDisplay Clock Values Cable clock force primary secondary no cable clock forceShow Clock Hardware Information and Register Values Show Clock Diagnostic InformationRouter# 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