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Cisco Broadband Cable Command Reference Guide
OL-1581-08
Chapter 2 Cisco CMTS Configuration Commands
cable power
•
You can turn power both on and off to a cable interface line card slot, even if a card is not physically
present in the slot.
•
This is the only CLI command that actually powers off a card. The
hw module reset
command
appears to perform a similar function, but it performs only the equivalent of issuing the
shutdown
and
no shutdown
commands on the card.
•
When power is turned off for a cable interface line card, the power to that card slot will remain off
until the
cable power on
command is used to turn the power back on. If you insert a cable interface
card in to a slot that had been previously powered down, you will have to use the
cable power on
command to turn on power before being able to use the card.
•
This command requires that a working TCC+ card be present because the TCC+ card controls and
monitors the operation of the cable interface line cards. In Cisco IOS Release 12.2(8)BC1 and later,
this command is disabled if a working TCC+ card is not present in the router.
Note
The Cisco uBR10012 router requires a working TCC+ card for normal operations. Using the
router without a working TCC+ card is not a supported configuration.
Examples
The following example shows how to power off the first cable interface card in a Cisco uBR10012
chassis (card 5, slot 0). It also shows the output from the
show interface cable
command, with a line
that indicates that the hardware is not present.
router#
cable power off 5/0
Line Card 5/0 is POWERED OFF
router#
show int c5/0/0
Cable5/0/0 is down, line protocol is down
Hardware is not present
Hardware is UBR10012 CLC, address is 0005.00e0.2f14 (bia 0005.00e0.2f14)
Internet address is 10.20.42.1/24
MTU 1500 bytes, BW 27000 Kbit, DLY 1000 usec,
reliability 255/255, txload 1/255, rxload 1/255
...
router#
Note
The
show interface cable
command will not display output for a card that is not physically present, so
if you can use the
show interface cable
command but it indicates that the hardware is not present, this
usually means that power to the card has been turned off using the
cable power off
command.
The following example shows the error message that results when you attempt to power on or off a cable
interface card that is not physically present in the chassis:
router#
cable power off 6/1
Line Card 6/1 is not present
router#
Note
Power is still turned on or off to a cable interface line card slot, even when the card is not physically
present in that slot.