Cisco Systems uBR7200 Series manual Show Interface Cable Upstream Command Field Descriptions

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Chapter 4 Troubleshooting the System

Understanding Show Command Responses

Table 4-18 Show Interface Cable Upstream Command Field Descriptions

 

 

 

 

Field

Description

 

 

 

 

 

Cable

Indicates the location of the upstream interface

 

 

 

 

 

 

 

 

 

 

 

Upstream is

Indicates the administrative state of the upstream interface

 

 

 

 

up/...administratively down

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Received broadcasts

Number of broadcast packets received through this

 

 

 

 

 

upstream interface

 

 

 

 

 

 

 

 

 

 

 

multicasts

Number of multicast packets received through this

 

 

 

 

 

upstream interface

 

 

 

 

 

 

 

 

 

 

 

unicasts

Number of unicast packets received through this interface

 

 

 

 

 

 

 

 

 

 

 

discards

Number of packets discarded by this interface

 

 

 

 

 

 

 

 

 

 

 

errors

Sum of all errors that prevented upstream transmission of

 

 

 

 

 

packets through this interface

 

 

 

 

 

 

 

 

 

 

 

unknown protocol

Number of packets received that were generated using a

 

 

 

 

 

protocol unknown to the Cisco uBR7246

 

 

 

 

 

 

 

 

 

 

 

packets input

Number of packets received through this upstream

 

 

 

 

 

interface that were free from errors

 

 

 

 

 

 

 

 

 

 

 

corrected

Number of error packets received through this upstream

 

 

 

 

 

interface that were corrected

 

 

 

 

 

 

 

 

 

 

 

uncorrectable

Number of error packets received through this upstream

 

 

 

 

 

interface that could not be corrected

 

 

 

 

 

 

 

 

 

 

 

noise

Number of upstream packets corrupted by line noise

 

 

 

 

 

 

 

 

 

 

 

microreflections

Number of upstream packets corrupted by

 

 

 

 

 

microreflections

 

 

 

 

 

 

 

 

 

 

 

Guaranteed-rate service queue

Number of bandwidth requests queued up in the

 

 

 

 

depth

Guarantee-rate queue. This queue is only available to

 

 

 

 

 

modems that have a reserved minimum upstream rate in

 

 

 

 

 

their Class of Service

 

 

 

 

 

 

 

 

 

 

 

Best-effort service queue depth

Number of bandwidth requests queued up in the

 

 

 

 

 

Best-effort queue. This queue is available to all modems

 

 

 

 

 

that do not have any reserved rate on the upstream

 

 

 

 

 

 

 

 

 

 

 

Total Modems On This

Number of cable modems currently sharing this upstream

 

 

 

 

Upstream Channel

channel. This field also shows how many of these modems

 

 

 

 

 

are active

 

 

 

 

 

 

 

 

 

 

 

Current Total Bandwidth

Total amount of bandwidth reserved by all modems

 

 

 

 

Reserved

sharing this upstream channel that require bandwidth

 

 

 

 

 

reservation. The Class of Service for these modems

 

 

 

 

 

specifies some non-zero value for the guaranteed-upstream

 

 

 

 

 

rate. When one of these modems is admitted on the

 

 

 

 

 

upstream, this field value is incremented by this

 

 

 

 

 

guaranteed-upstream rate value

 

 

 

 

 

 

 

 

 

Cisco uBR7200 Series Universal Broadband Router Software Configuration Guide

 

 

 

 

 

 

 

 

 

 

 

 

4-28

 

 

 

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 IntervalCMTS01config-if#no cable source-verify CMTS01config-if#cable source-verify dhcpVerify Cable Modem Upstream Address Verification 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 Clear Cable Modem Reset Configure Cable Modem Registration TimeoutCMTS01config-if#cable registration-timeout n 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 InformationGeneral Show Commands Understanding Show Command ResponsesMonitoring and Maintaining Remote Querying Show Cable Modem See the sample command output below Page SID Cable modem cable 3/0 upstream 0 unregistered Show Cable Modem MaintenanceCable modem cable 3/0 upstream 0 offline 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 Show Cable QoS Profile Troubleshooting Using Cable Flap ListsUBR7200#show 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 TimeVerify Cable Flap List Power Adjustment Threshold Set Cable Flap List Power Adjustment ThresholdSet Cable Flap List Miss 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 ValuesConfigure Unmodulated Test Signals Setting Downstream Test SignalsStep Command Purpose Configure Prbs Test Signals Verify Test Signal OutputStep Command Pinging Unresponsive Cable ModemsVerify the Ping Using Cable Interface Debug CommandsDebug Cable ARP Requests 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 Show General Information Show Clock FramesRouter# show frame-clocks
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