show controllers cable-modem mac
Troubleshooting Tips for the Cisco uBR924 Cable Access Router 49
COS 1:
Assigned SID: 5
Max Downstream Rate: 4000000
Max Upstream Rate: 2000000
Upstream Priority: 7
Min Upstream Rate: 100000
Max Upstream Burst: 12
Privacy Enable: TRUE
Ranging Backoff Start: 0 (at initial ranging)
Ranging Backoff End: 4 (at initial ranging)
Data Backoff Start: 0 (at initial ranging)
Data Backoff End: 4 (at initial ranging)
IP Address: 0.0.0.0
Net Mask: 0.0.0.0
TFTP Server IP Address: 223.255.254.254
Time Server IP Address: 188.188.1.5
Config File Name: muck/ebuell/tftp/cm_conf
Time Zone Offset: -28800
Table 8 describes the fields shown in the display.
Table 8
Show Controllers Cable-Modem MAC State Field Descriptions
Field
Description
MAC State
Current operational state of the MAC layer of the Cisco uBR924.
Ranging SID
Service ID used for ranging requests.
Registered
Indicates whether or not the Cisco uBR924 is currently registered with the CMTS.
Privacy Established
Indicates whether or not keys for baseline privacy have been exchanged between the
Cisco uBR924 and the CMTS, establishing privacy.
Mac Resets
Number of times the Cisco uBR924 reset or initialized this interface.
Sync lost
Number of times the Cisco uBR924 lost synchronization with the downstream
channel.
Invalid Maps
Number of times the Cisco uBR924 received invalid MAP messages.
Invalid UCDs
Number of times the Cisco uBR924 received invalid UCD messages.
Invalid Rng Rsp
Number of times the Cisco uBR924 received invalid ranging response messages.
Invalid Reg Rsp
Number of times the Cisco uBR924 received invalid registration response messages.
T1 Timeouts
Number of timeouts caused by the Cisco uBR924 not receiving a valid upstream
channel descriptor (UCD) from the CMTS within the specified time.
T2 Timeouts
Number of timeouts caused by the Cisco uBR924 not receiving a maintenance
broadcast for ranging opportunities from the CMTS within a specified time.
T3 Timeouts
Number of timeouts caused by the Cisco uBR924 not receiving a response within a
specified time from the CMTS to a RNG-REQ message during initial maintenance.
T4 Timeouts
Number of timeouts caused by the Cisco uBR924 not receiving a response within a
specified time from the CMTS to a periodic maintenance request.
Range Aborts
Number of times the ranging process was aborted by the CMTS.
DS ID
Identifier of the downstream channel on which this MAC management message has
been transmitted. This identifier is arbitrarily chosen by the CMTS and is only
unique within the MAC-sublayer domain.
DS Frequency
Downstream frequency acquired by the Cisco uBR924 during its last initialization
sequence.
