Error Disabling the Clock Rate on Interface

[gfiguereo]

When i try to disable the clock rate on a Serial interface of a 3640 Router the router returns the following error:

Router(Config-if)#no clock rate 56000

FECPM PM doesn't support clock rate 0

HOw can i disable the clock rate

[Georg Pauwen]

Hello,

the command

no clock rate

is correct;is your interface configured as a DCE device ? Try and configure it as a DTE and try the command again. Or shut down the interface and try the command again.

Regards,

Georg

[kkalaycioglu]

You can check whether interface isDTE or DCE using "show controller serial X" command. (type "serial" completely, TAB won't work).

[gfiguereo]

What is the command to configure the interface back to DTE??

[Georg Pauwen]

Hello,

DTE is the default. Can you remove the serial cable from the interface and try the command again ?

Regards,

Georg

[gfiguereo]

The cable is unplugged. the interface doesn't have cable connected.

[kkalaycioglu]

If there's no cable connected it's accepted as DTE. If you connect a DTE cable (for example A V.35 male connector) it'll stay DTE. If you connect a DCE cable (e.g. V.35 female cable) it'll be automatically DCE. In this case you've to configure a clock rate.

[myce]

hi i'm a newbie..

What happens if my router is connected is a DTE (because a DTE cable is connected to it).. then i configured the serial with a clockrate..

is this the result of not able to ping the serial int from inside the router?

[sohail_sarwar]

Hi

I even kept the interface in admin shut mode but it refuses to accept the command no clock rate

After using show controller interfaces serial 0/1

it gives o/p as serail not connected

Kindly see how to remove the command

regards

Sohail JKB