Cisco Systems UBR924 manual Use Additional Troubleshooting Commands

Step 5—Use Additional Troubleshooting Commands

Event 11—Enter the Maintenance State

As soon as the Cisco uBR924 has successfully completed the above events, it enters the operational maintenance state and is authorized to forward traffic into the cable network.

508178.322 CMAC_LOG_STATE_CHANGE maintenance_state

Step 5—Use Additional Troubleshooting Commands

You can use other show controllers and debug cable modem commands to troubleshoot different aspects of a Cisco uBR924 cable access router. However, the most useful command is the show controllers cable-modem 0 mac command.

To display additional controller information inside a Cisco uBR924, enter one or more of the following commands in privileged EXEC mode:

Command	Purpose
show controllers cable-modem	Displays high-level controller information.
show controllers cable-modem bpkm	Displays privacy state information.
show controllers cable-modem des	Displays information about the Data Encryption
	Standard (DES) engine registers.
show controllers cable-modem filters	Displays information about the MAC and SID filters.
show controllers cable-modemlookup-table	Displays the Cisco uBR924’s internal mini-slot lookup
	table.
show controllers cable-modem mac [errors hardware	Displays detailed MAC-layer information.
log resets state]
show controllers cable-modem phy	Displays physical-layer information such as receive and
	transmit physical registers.
show controllers cable-modem tuner	Displays tuning information.
show interface cable-modem	Displays information about the Cisco uBR924
	interface.
To debug different components of a Cisco uBR924, enter one or more of the following commands
in privileged EXEC mode:
Command	Purpose
debug cable-modem bpkm {errors events packets}	Debugs baseline privacy information.
debug cable-modem bridge	Debugs the bridge filter.
debug cable-modem error	Debugs cable interface errors.
debug cable-modem interrupts	Debugs Cisco uBR924 interface interrupts.
debug cable-modem mac {log [verbose] messages}	Displays and debugs the MAC-layer log entries in
	real time.
debug cable-modem map	Debugs map message processing information.

18Cisco IOS Release 12.0(5)T