Cisco Broadband Cable Command Reference Guide

show cable modem
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Table 2-22 Descriptions for the MAC State Field (continued)
The following example shows sample output for the summary option:
Router# show cable modem summary
Interface Total Active Registered Description
Modems Modems Modems
Cable3/0/U0 165 141 141 Line 32/1
Cable3/0/U1 209 172 170 Line 32/2
Cable3/0/U2 262 207 203 Line 32/3
Cable3/0/U3 256 194 188 Line 32/4
Cable5/0/U0 746 714 711 Line 41/1
Cable6/0/U0 806 764 759 Line 42/2
Cisco Broadband Cable Command Reference Guide
Chapter 2 Cisco Cable Modem Termination System Commands
MAC State Value Description
reject(ip) The CM attempted to register, but registration failed because the IP address
in the CM request did not match the IP address that the TFTP server recorded
when it sent the DOCSIS configuration file to the CM. IP spoofing could be
occurring.
reject(na) The CM attempted to register, but registration failed because the CM did not
send a Registration-Acknowledgement (REG-ACK) message in reply to the
Registration-Response (REG-RSP) message sent by the CMTS. A
Registration-NonAcknowledgement (REG-NACK) is assumed.
Note The Description field appears in Cisco IOS Release 12.1(11b)EC and later releases.
The following example shows sample output for the summary option for all enabled cable interface line
cards on a Cisco uBR10012 router:
Router# show cable modem summary
Interface Cable Modem
Total Registered Unregistered Offline
Cable5/1/0/U5 2 2 0 0
Cable6/1/0/U0 14 13 1 0
Cable6/1/1/U2 14 14 0 0
Cable7/0/0/U0 2 2 0 0
Cable7/0/0/U5 4 3 1 1
Router#
The following example shows sample output for the summary and total options for all enabled cable
interface line cards on a Cisco uBR10012 router:
Router# show cable modem summary total
Interface Cable Modem
Total Registered Unregistered Offline
Cable5/1/0/U5 1 1 0 0
Cable6/1/0/U0 11 8 3 1
Cable6/1/1/U2 17 16 1 0
Cable7/0/0/U0 2 1 1 0
Cable7/0/0/U5 1 0 1 0
Total: 32 26 6 1
Router#
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