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Cisco Broadband Cable Command Reference Guide
OL-1581-08
Chapter 3 Cisco CMTS Show Commands
show cable modem
Total US Throughput : 0 bits/sec, 0 packets/sec
Total DS Data : 1452073 packets, 171343858 bytes
Total DS Throughput : 0 bits/sec, 0 packets/sec
Active Classifiers : 0 (Max = NO LIMIT)
DSA/DSX messages : reject all
Dynamic Secret : A3D1028F36EBD54FDCC2F74719664D3F
Spoof attempt : Dynamic secret check failed
Total Time Online : 16:16
Router#
Note
The “Number of CPES” field shows the value set for the CM, not the value for the CMTS that is set by
the
cable modem max-cpe
command. In Cisco IOS Release 12.2(15)BC1 and later releases, the
verbose
display also includes information about the dynamic shared-secret feature (see the
cable dynamic-
secret
command).
Note
An asterisk (*) in the Receive Power column indicates that a power adjustment has been made for that
CM. An exclamation point (!) in the Receive Power column indicates that the CM has reached its
maximum power transmit level and cannot increase its power level further. An exclamation point (!) in
the Timing Offset column indicates that the CM has exceeded the maximum delay and timing offset
specified by the
cable map-advance
command.
A pound sign (#) in the MAC State column indicates that the
cable tftp-enforce
mark-only
command
has been used to require that a CM attempt a TFTP download of the DOCSIS configuration file before
registering, but the CM did not do so (Cisco IOS Release 12.1(11b)EC1 and Cisco IOS
Release 12.2(8)BC2 or later releases).
Tip
The
show cable modem
command displays the CM timing offset in DOCSIS ticks, while other
commands, such as
cable map-advance
, display the offset in microseconds. Use the following method
to convert microseconds to DOCSIS ticks:
ticks = microseconds*64/6.25
.
Table 3-14
describes the major fields shown in the
show cable modem
displays:
Table 3-14 Descriptions for the show cable modem Fields
Field
Description
MAC Address
The MAC address for the CM.
IP Address
The IP address that the DHCP server has assigned to the CM.
I/F, Interface
The cable interface line card providing the upstream for this CM.
sysDescr
Identifies the vendor and model of the cable modem, as reported by the cable
modem. This field displays a value only when the
cable modem remote-
query
command has been configured.
Upstream Power
Downstream Power
The Upstream and Downstream Power fields are displayed only if the
CM remote-query feature has been enabled using the
cable modem remote-
query
command. Upstream Power displays the CM transmit level in dBmV,
and Downstream Power displays the dBmV level received at the CM, as
measured by the CMTS.
MAC State
The current state of the MAC layer (see
Table 3-15
).