Cisco Systems UBR900 Possible but Uncommon Cable Interface Reset Causes, Message Description

show controllers cable-modem mac

The following example indicates that an event in the cable interface driver caused the interface to reset. This often occurs because a shut or clear command is currently being issued on the interface.

uBR924# show controllers cable-modem 0 mac resets 527986.444 CMAC_LOG_RESET_FROM_DRIVER 528302.042 CMAC_LOG_RESET_FROM_DRIVER 528346.600 CMAC_LOG_RESET_FROM_DRIVER 528444.494 CMAC_LOG_RESET_FROM_DRIVER

Table 10	Possible but Uncommon Cable Interface Reset Causes
Message		Description
CMAC_LOG_RESET_CONFIG_FILE_PARSE_FAILED		The format of the DOCSIS configuration file acquired
		from the TFTP server is not acceptable.
CMAC_LOG_RESET_LOSS_OF_SYNC		Synchronization with the CMTS has been lost (SYNC
		messages are not being received).
CMAC_LOG_RESET_T4_EXPIRED		Maintenance ranging opportunities for this
		Cisco uBR900 are not being received from the CMTS.
CMAC_LOG_RESET_DHCP_WATCHDOG_EXPIRED		The DHCP server took too long to respond.
CMAC_LOG_RESET_TOD_WATCHDOG_EXPIRED		The Time Of Day server took too long to respond.
CMAC_LOG_RESET_PRIVACY_WATCHDOG_EXPIRED		The baseline privacy exchange with the CMTS took too
		long.
CMAC_LOG_RESET_CHANGE_US_WATCHDOG_EXPIRED		The Cisco uBR900 series was unable to transmit a
		response to a UCC-REQ message.
CMAC_LOG_RESET_SECURITY_WATCHDOG_EXPIRED		The “full security” exchange with the CMTS took too
		long.
CMAC_LOG_RESET_CONFIG_FILE_WATCHDOG_EXPIRED		The TFTP server took too long to respond.
CMAC_LOG_RESET_ALL_FREQUENCIES_SEARCHED		All downstream frequencies to be searched have been
		searched.
		Note This message indicates that downstream
		frequencies were found, but the Cisco uBR900 series
		failed to acquire a downstream lock.
CMAC_LOG_RESET_T2_EXPIRED		Initial ranging opportunities are not being received.
CMAC_LOG_RESET_T3_RETRIES_EXHAUSTED		The CMTS failed too many times to respond to a
		RNG-REQ message.
		Note After 16 T3 timeouts, the Cisco uBR900 series will
		reset the cable interface.
CMAC_LOG_RESET_RANGING_ABORTED		The CMTS commanded the Cisco uBR900 series to abort
		the ranging process.
CMAC_LOG_RESET_NO_MEMORY		The Cisco uBR900 series has run out of memory.
CMAC_LOG_RESET_CANT_START_PROCESS		The Cisco uBR900 series was unable to start an internal
		process necessary to complete ranging and registration.
CMAC_LOG_RESET_CONFIG_FILE_READ_FAILED		The reading of the configuration file from the TFTP
		server failed.
		Note The file might not exist, or it might have incorrect
		permissions.
CMAC_LOG_RESET_AUTHENTICATION_FAILURE		The Cisco uBR900 series failed authentication as
		indicated in a REG-RSP message from the CMTS.

92Cisco IOS Release 12.0(7)T