Cisco Broadband Cable Command Reference Guide

show controllers cable-modem
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Table 5-4 show controllers cable-modem Field Descriptions
Cisco Broadband Cable Command Reference Guide
Chapter 5 Cable CPE Commands
Field Description
data mcfilter MAC control filter for data.
DS Downstream Broadcom receiver chip number and ID.
US Upstream Broadcom transmitter chip number and ID.
Tuner: status Current status of the tuner.
Rx: tuner_freq Downstream frequency (in Hz) that the router searched for and found.
symbol_rate Downstream frequency in symbols per second.
local_freq Frequency on which the transmitter and the tuner communicate.
snr_estimate Estimate of signal-to-noise ratio (SNR) in dB multiplied by 1000.
ber_estimate Estimate of bit error rate (always 0).
lock_threshold Minimum signal-to-noise ratio (SNR) that the router will accept as a valid
lock.
qam_mode The modulation scheme used in the downstream direction.
Tx: tx_freq Upstream frequency sent to the router by the CMTS in the UCD message.
power_level Transmit power level as set in the hardware, expressed as a hexadecimal
value. The units are unique to the hardware used. Use the show controllers
cable-modem mac state command to see the power level in dBmV.
symbol_rate Upstream frequency in symbols per second.
TFTP server IP address of the TFTP server at the CMTS.
TOD server IP address of the time-of-day server at the CMTS.
Security server IP address of the security server at the CMTS.
Timezone Offset Correction received from the DHCP server to synchronize the router time
clock with the CMTS.
Config filename Name of the file stored on the cable company’s TFTP server that contains
operational parameters for the router.
buffer size Size in bytes of the BCM3300 message buffers.
RX data PDU ring: Indicates the memory location of the beginning of buffer information for the
receive data ring.
rx_head Indicates current head buffer descriptor.
rx_p Indicates current head packet descriptor.
RX MAC message ring: Indicates the memory location of the beginning of buffer information for the
receive MAC message ring.
rx_head_mac Indicates current head buffer descriptor.
rx_p_mac Indicates current head packet descriptor.
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