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Cisco Broadband Cable Command Reference Guide
OL-1581-07
Chapter 6 Cable CPE Commands
show controllers cable-modem
Tip
In Cisco IOS Release 12.2(8)T and later releases, you can add a timestamp to
show
commands using the
exec prompt timestamp
command in line configuration mode.
Related Commands
Qualified syncs
Number of times a timestamp message was received by the router.
CRC fails
Number of times a MAC message failed a cyclic redundancy check (CRC).
HDR chk fails
Number of times a MAC header failed its 16-bit CRC check. The MAC
header CRC is a 16-bit Header Check Sequence (HCS) field that ensures the
integrity of the MAC header even in a collision environment.
Data pdus
Total number of data protocol data units (PDUs) of all types received by the
router.
Mac msgs
Number of MAC messages received by the router.
Valid hdrs
Number of valid headers received by the router, including PDU headers,
MAC headers, and headers only.
Global control and
status:
Used to reset the BCM3300 chip.
interrupts:
Hexadecimal values of the pending IRQ interrupt and IRQ mask.
Table 6-4
show controllers cable-modem Field Descriptions
Field
Description
Command Description
show controllers cable-modem
bpkm
Displays information about the baseline privacy key management
exchange between the router and the CMTS.
show controllers cable-modem
crypto des
Displays information about the DES engine registers.
show controllers cable-modem
filters
Displays the registers in the MAC hardware that are used for
filtering received frames.
show controllers cable-modem
lookup-table
Displays the mini-slot lookup table for the cable interface.
show controllers cable-modem
mac
Displays detailed MAC-layer information for the cable interface.
show controllers cable-modem
phy
Displays the contents of the registers used in the downstream
physical hardware for the cable interface.
show controllers cable-modem
tuner
Displays the settings for the upstream and downstream tuners used
by the cable interface.
