Cisco UBR904 - Router - EN Troubleshooting Tips page 19

ds_data_dma_ctrl=0x98, ds_mac_dma_ctrl=0xD8
ds_dma_data_index=0x0007, ds_dma_msg_index=0x0000
upstream dma:
us_bd_base=0x001FB8, us_pd_base=0x002038
us_dma_ctrl=0x80, us_dma_tx_start=0x00
Global control and status:
global_ctrl_status=0x00
interrupts:
irq_pend=0x0008, irq_mask=0x00F7
Table 2 briefly describes some of the fields shown in the display. For more information, see the
Broadcom documentation for the BCM3220 chip.
Table 2 Show Controllers Cable-Modem Field Descriptions
Field
BCM3220 unit
idb
ds
regaddr
reset_mask
station address
default station address
PLD VERSION
MAC state
Prev States
MAC mcfilter
data mcfilter
DS
US
Tuner: status
Rx: tuner_freq
symbol_rate
local_freq
snr_estimate
ber_estimate
lock_threshold
qam_mode
Tx: tx_freq
power_level
symbol_rate
TFTP server
TOD server
Security server
Description
The unit number of this BCM3220 chip.
Interface description block number.
Downstream channel.
Indicates the start of the BCM3220 registers.
Indicates the bit to hit when resetting the chip.
MAC address of this uBR904 cable modem interface.
Default MAC address assigned by the factory for this uBR904 cable modem.
PLD version of the BCM3220 chip.
Current MAC state of the cable modem.
Number of states that have previously existed since initialization.
MAC control filter for MAC messages.
MAC control filter for data.
Downstream Broadcom receiver chip number and ID.
Upstream Broadcom transmitter chip number and ID.
Current status of the tuner.
Downstream frequency (in Hz) that the uBR904 searched for and found.
Downstream frequency in symbols per second.
Frequency on which the transmitter and the tuner communicate.
Estimate of signal-to-noise ratio (SNR) in Db X 1000.
Estimate of bit error rate (always 0).
Minimum signal-to-noise ratio (SNR) that the uBR904 will accept as a valid lock.
The modulation scheme used in the downstream direction.
Upstream frequency sent to the uBR904 by the CMTS in the UCD message.
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 0 mac
state command to see the power level in dBmV.
Upstream frequency in symbols per second.
IP address of the TFTP server at the headend.
IP address of the time-of-day server at the headend.
IP address of the security server at the headend.
Troubleshooting Tips for the Cisco uBR904 Cable Modem 19
show controllers cable-modem