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

 

 

Page 20
Image 20
Cisco Systems uBR7200 Series manual See the sample command output below