Assigning No Clock rate in Serial

[md_ani]

Hii Dear All,

For some signed purpose I had given the command "clock rate 2000000" in my serial. Now I want to remove that so that Default command i.e, No Clock Rate can be active but I am unable to do so as after giving "No Clock Rate" or "No Clock Rate 2000000" command it says "clock rate 0 is not supported"

Help me pls as I don't want to give any clock rate.

Anis

[steve.busby]

Anis,

To set your clock rate back to it's default, you can issue the interface config command "default clock rate".

HTH

Steve

[md_ani]

Hi,

After giving the command it is saying the same message.

Output is below

"Router(config-if)#default clock rate

clock rate 0 is not supported"

[smif101]

What type of cable are you using, if it is a DTE cable then the clockrate command shouldn't be up there and if it is, it is not using that rate anyway. If it is a DCE cable then you need to input some specified clock so it knows what to output.

[steve.busby]

Anis,

Jason is absolutely correct, if you have a DCE cable you have to specify the clocking. If you go with just clearing the clock, as in "default clock rate", your interface will be up, but line protocol will be down.

[md_ani]

Hii All,

I am not using that Serial now as I have shifted my Lease Line Modem to Another serial. But now I want to remove that command from the serial which I am not using.

Problem is that when I was using that Serial (which is having clock rate)I was recieving Input errors, CRC and Frame in that serial. I just went to the cisco site and found that MisMatched Clock Rate could be one of the reason for this. I saw in configuration that clock rate 2000000 is given. I tried to remove the clock rate but I was unable to do so. Finally I shifted to another serial as it was free. now I want to remove that clock rate from the serial which I am not using. Hope this'll clear my situation.

Waiting for response from all of u.

Anis

[smif101]

Well the problem you are getting with the errors is probably because you were using your internal clock instead of your ISP's clock to send your data. You should be accepting timing from your ISP unless they have it setup to use Terminal Timing on there end, which I doubt. One big question I have is do you have some type of patch panel in between or directly connecting from router to ISP equipment via the cisco cable.

I would think the only way to get the serial link to not read a clock rate is to throw a DTE serial cable on the port to reset it.