Cisco Systems UBR924 manual Cisco IOS Release 12.05T

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show controllers cable-modem

Table 2

Show Controllers Cable-Modem Field Descriptions (continued)

 

 

 

Field

 

Description

 

 

 

TX PD ring:

 

Indicates the memory location of the beginning of buffer information for the transmit

 

 

packet descriptor ring.

tx_head_pd

 

Indicates current head packet descriptor.

tx_tail_pd

 

Indicates current tail packet descriptor.

ehdr

 

Extended MCNS header.

 

 

 

MIB Statistics:

 

 

 

 

 

DS fifo full

 

Number of times the downstream input first-in first-out (FIFO) buffer became full on

 

 

the Cisco uBR924.

 

 

 

rerequests

 

Number of times a bandwidth request generated by the Cisco uBR924 was not

 

 

responded to by the CMTS.

 

 

DS mac msg overruns

Number of times the Cisco uBR924’s DMA controller had a downstream MAC

 

 

message and there were no free MAC message buffer descriptors to accept the message.

 

 

 

DS data overruns

 

Number of times the Cisco uBR924’s DMA controller had downstream data and there

 

 

were no free data PDU buffer descriptors to accept the data.

 

 

 

Qualified maps

 

Number of times a MAP message passed all filtering requirements and was received by

 

 

the Cisco uBR924.

 

 

 

Qualified syncs

 

Number of times a timestamp message was received by the Cisco uBR924.

 

 

 

CRC fails

 

Number of times a MAC message failed a cyclic redundancy (CRC) check.

 

 

 

HDR chk fails

 

Number of times a MAC header failed its 16-bit CRC check. The MAC header CRC is a

 

 

16-bit Header Check Sequence (HCS) field that ensures the integrity of the MAC

 

 

header even in a collision environment.

 

 

 

Data pdus

 

Total number of data PDUs (protocol data units) of all types received by the

 

 

Cisco uBR924.

 

 

 

Mac msgs

 

Number of MAC messages received by the Cisco uBR924.

 

 

 

Valid hdrs

 

Number of valid headers received by the Cisco uBR924, including PDU headers, MAC

 

 

headers, and headers only.

 

 

Global control and status:

Used to reset the BCM3300 chip.

 

 

 

interrupts:

 

Hexadecimal values of the pending IRQ interrupt and IRQ mask.

 

 

 

24Cisco IOS Release 12.0(5)T

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Contents Benefits RestrictionsRelated Features and Technologies Related DocumentsRelated Documents List of Terms If MIB MIB-IIList of Terms List of Terms Cmts to Cable Modem Network Topology Troubleshooting Steps Understand How Basic Initialization Works12960 Connect to the Cisco uBR924 CmtsDisplay the Cisco uBR924’s MAC Log File UBR924# show controllers cable-modem 0 mac logCmacloginitialrangingminislots CmaclogpowerlevelisCmaclogadjustrangingoffset CmaclogadjusttxpowerInterpret the MAC Log File and Take Action CmaclogregistrationokCmaclogregrspackmsgqueued CmaclognoprivacyInterpret the MAC Log File and Take Action Event 4-Start Ranging for Power Adjustments Event 3-Obtain Upstream ParametersCmaclogdhcperroracquiringsecsvraddr Event 5-Establish IP ConnectivityEvent 6-Establish the Time of Day Event 7-Establish SecurityEvent 10-Comply with Baseline Privacy CmaclogprivacyfsmstatechangeCmaclogbpkmreqtransmitted CmaclogbpkmrspmsgrcvdUse Additional Troubleshooting Commands Event 11-Enter the Maintenance StateCommand Reference Show controllers cable-modem Examples Show Controllers cable-modemShow Controllers Cable-Modem Field Descriptions Show controllers cable-modem Cisco IOS Release 12.05T Related Commands Show controllers cable-modem bpkm UBR924# show controllers cable-modem 0 bpkmRelated Commands Describes the fields shown in the displayShow controllers cable-modem des DES engine registers are displayed in the following example UBR924# show controllers cable-modem 0 des downstream desRelated Commands Show controllers cable-modem filters Show Controllers Cable-Modem Filters Field Descriptions Show controllers cable-modem filters Show controllers cable-modem lookup-table Mini-slot lookup table is displayed in the following example Show controllers cable-modem lookup-table Related Commands Errors Show controllers cable-modem macCmaclogresetfromdriver ExampleCmaclogwillsearchdsfrequencyband CmaclogallucdsfoundCmaclogprivacynotconfigured CmaclogwatchdogtimerCmaclogresetdhcpwatchdogexpired CmaclogregrspackmessageeventUBR924# show controllers cable-modem 0 mac resets CMACLOGRESETT4EXPIREDCmaclogresetconfigfileparsefailed CmaclogresetlossofsyncCmaclogresettodwatchdogexpired CmaclogresetprivacywatchdogexpiredCmaclogresetservicenotavailable CMACLOGRESETT6RETRIESEXHAUSTEDCmaclogresetnetaccessmissing Cmaclogresetdhcpfailed1600 Interrupts Burst profiles profile UBR924# show controller cable-modem 0 mac state Burst Descriptor Interval Usage Code Show Controllers Cable-Modem MAC State Field Descriptions US ID Show controllers cable-modem mac Related Commands Show controllers cable-modem phy D12=FFD3FFE0D14=FFF3FFED = Ffffff = FffffeCC CC CC CC CC 0D 0D CC CC CC CC CC CC CC CC 0D Related Commands Show controllers cable-modem tuner Show controllers cable-modem Debug Commands UBR924# debug cable-modem bpkm errors Debug cable-modem bpkmStatebauthwait Related Commands Debug cable-modem bridge UBR924# debug cable-modem bridgeRelated Commands Debug cable-modem error Debug cable-modem errorRelated Commands Debug cable-modem interrupts UBR924# debug cable-modem interruptsRelated Commands Debug cable-modem mac Debug cable-modem mac log 014259 528302.046 CmaclogdriverinitidbshutdownCmaclogdriverinitidbshutdown UBR924# debug cable mac log UBR924# debug cable mac log verboseUBR924# debug cable-modem mac messages ? Debug cable mac messages Fixed QpskOFF EhdrMar 014420 Debug cable-modem map Debug cable-modem mapRelated Commands