Cisco Broadband Cable, Справочное руководство

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Cisco Broadband Cable Command Reference Guide
OL-1581-08
Chapter 3 Cisco CMTS Show Commands
show cable modem
Tip In Cisco IOS Release 12.1(12)EC, Release 12.2(8)BC1, and later releases, you can add a timestamp to
show commands using the exec prompt timestamp command in line configuration mode.
Related Commands
reject(ptd) The CM registered, but network access for CPE devices using this CM has
been disabled through the DOCSIS configuration file. In addition, BPI
encryption was not established because TEK key assignment was rejected.
Note
This state is equivalent to the online(d) and reject(pt) states.
Note In Cisco IOS Release 12.1(20)EC, Cisco IOS Release 12.2(15)BC1, and earlier releases, when
network access is disabled in the DOCSIS configuration file sent to the CM, the network
disabled status takes precedence, and the MAC status field shows online(d) even if BPI
encryption fails. Use the
show cable modem mac-address command to confirm whether BPI
is enabled or disabled for a particular cable modem.
reject(ts) The CM attempted to register, but registration failed because the TFTP server
timestamp in the CM registration request did not match the timestamp
maintained by the CMTS. This might indicate that the CM attempted to
register by replaying an old DOCSIS configuration file used during a prior
registration attempt.
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.
1. The CM MAC state field can also be retrieved using SNMP by getting the value of the cdxCmtsCmStatusValue object in the
CISCO-DOCS-EXT-MIB.
Table 3-15 Descriptions for the MAC State Field (continued)
1
MAC State Value Description
Command Description
cable modem vendor Associates the name of a vendor with its Organizational Unique Identifier
(OUI).
show cable modem
access-group Displays the access groups for the CMs on a particular cable interface.
show cable modem
classifiers Displays information about the classifiers for a particular CM.
show cable modem
cnr Displays information about the upstream carrier-to-noise ratio (CNR) for a
particular cable modem.
show cable modem
connectivity Displays connectivity statistics for one or more CMs.
show cable modem
counters Displays downstream and upstream traffic counters for one or more CMs.