Re: Clock Rate

This is getting so distant from reality ... as a lab can get.
What exactly is DCE and DTE ? Is a router a DTE or a DCE ?
Is the cable a DCE or a DTE ? :)
-Carlos

Radioactive Frog @ 17/07/2011 01:57 -0300 dixit:
> Great explaination Gaurav.
> Just would add on top of gaurav's statement - You need a very SPECIFIC
> cables that has one end DTE and other end DCE to get it working.
>
> On Sun, Jul 17, 2011 at 2:12 AM, GAURAV MADAN <gauravmadan1177_at_gmail.com>wrote:
>
>> Things to consider here are :
>>
>> 1) Clock rate is applicable to DCE devices and not on DTE devices
>> 2) Devices can be categorized as DCE or DTE depending the cable connected
>> to
>> serial interface.
>> 3) Generally DCE devices are FR switch etc.
>> 4) If you are configuring the back to back connection ; configure "clock
>> rate <> " CLI on DCE end only
>> 5) I think latest IOS on serial HWIC will take clock rate command only on
>> DCE end and not on DTE end . However older IOS used to take it on any
>> device
>> 6) Any rate is good ... as long as it is working .. default 9600 bps should
>> be OK .
>>
>>
>> HTH
>> Gaurav Madan
>> CCIE
>>
>> On Sat, Jul 16, 2011 at 9:36 PM, <jhnrose401_at_gmail.com> wrote:
>>
>>> Dear
>>>
>>> I want to know what clock rate i will use when i am in the lab or when i
>> am
>>> using
>>> dynamips what is the method or way i will configure the correct clock
>>> rate to
>>> my routers
>>>
>>> Eg
>>>
>>> For DCE i ll configure the clock rate not for DTE correct
>>>
>>> if both devices are DCE i will define CR on both or in a single devices.
>>>
>>> R1 --ser1/0 -------------------s1/0 R2
>>>
>>> I am facing problem my ospf adj flap after few minutes is CR are the
>> reason
>>> R1 = s1/0 ip add 10.1.1.1/24 and loop back 1.1.1.1/24
>>> R2 = s1/0 ip add 10.1.1.2/24 and loop back 2.1.1.1/24
>>> clock rate 64000 on both sides
>>> R1 and R2
>>>
>>> router ospf 1
>>> net 0.0.0.0 255.255.255.255 are 0
>>>
>>> thks
>>>
>>>
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-- 
Carlos G Mendioroz  <tron_at_huapi.ba.ar>  LW7 EQI  Argentina
Blogs and organic groups at http://www.ccie.net