Cisco Systems UBR924 manual Show controllers cable-modem

			show controllers cable-modem tuner
	Table 9	Show Controllers Cable-Modem Tuner Field Descriptions
	Field	Description
	tuner_freq	Indicates the current downstream frequency.
	symbol_rate	Indicates the downstream symbol rate in symbols per second.
	local_freq	Frequency on which the transmitter and tuner communicate.
	snr_estimate	Signal to noise estimate in dB X 1000.
	ber_estimate	Bit error rate estimate (always 0).
	lock_threshold	Minimum signal-to-noise ratio (SNR) that the Cisco uBR924 will accept as a valid lock.
	QAM status	Indicates if QAM/FEC lock has been acquired and the modulation mode in use.
	tx_freq	Upstream frequency sent to the Cisco uBR924 by the CMTS in the UCD message.
	power_level	Transmit power level as set in the hardware, given 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.
	symbol_rate	Indicates the upstream symbol rate in symbols per second that is negotiated
		between the CMTS and the cable access router.
Related Commands
	Command		Description
	show controllers cable-modem		Displays high-level controller information about a Cisco
			uBR924 cable access router.
	show controllers cable-modem bpkm		Displays information about the baseline privacy key
			management exchange between the Cisco uBR924 and the
			CMTS.
	show controllers cable-modem des		Displays information about the Data Encryption Standard
			(DES) engine registers.
	show controllers cable-modem filters		.Displays the registers in the MAC hardware that are used for
			filtering received frames.
	show controllers cable-modem		Displays the mini-slot lookup table inside a Cisco uBR924.
	lookup-table
	show controllers cable-modem mac		Displays detailed MAC-layer information for a Cisco uBR924.
	show controllers cable-modem phy		Displays the contents of the registers used in the downstream
			physical hardware of the Cisco uBR924.

Troubleshooting Tips for the Cisco uBR924 Cable Access Router 57