Motorola BSR 2000 manual Show cable modem timing-offset

Release 1.0 CMTS Commands

show cable modem timing-offset

This show cable modem timing-offsetcommand allows the user to select which cable modems are displayed on the console based on their timing offset value. The timing offset stored at the cable modem is the accumulation of all the timing adjustments sent to the cable modem. The cable modem starts at an initial timing offset which takes into account the cable modem’s internal delays. The BSR cannot determine at what timing offset a particular cable modem starts and therefore the values stored and displayed by the BSR are the summation of the adjustments from the cable modem’s initial timing offset. Since most manufacturers use a different initial timing offset value, the values stored by the BSR will vary per cable modem based on the manufacturer.

Note: The true timing offset that a CM is using should be read at the CM using SNMP. A CM with the highest recorded timing offset could be the furthest unit away from the BSR and be functioning correctly.

The show cable modem timing-offsetcommand displays the following information about a cable modem:

Interface	cable modem interface with active
	connection
Prim Sid	Primary Service Identifier number
Connect State	describes the connectivity state of a cable
	modem. The table below describes the 20
	cable modem connectivity states
	supported on the BSR
Timing Offset	current cable modem timing adjustment
Rec Power	cable modem receive downstream power
	level in dbmv
Ip address	cable modem IP address
Mac address	cable modem Media Access Control layer
	address

526363-001-00 Rev. B MGBI 11-209