Cisco Systems uBR7200 Series manual See the sample command output below

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

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