i use v.35 dce,dte cables
on the intface s0 which attach to the v.35 dce cable,i got the following:
routerA(config-if)#dce-terminal-timing-enable
%not allowed on dte interface
but if i use the command below:
routerA(config-if)#no dce-terminal-timing-enable
routerA(config-if)#dce-terminal-timing-enable
routerA(config-if)#clock rate 4000000
it does work.
use sh controll s0 i saw it was a dce cable!
just confused why i must use "no dce-terminal-timing-enable" first,then the
"dce-terminal-timing-enable" works!
also i just got a empty 2500 router,which means it's nvram is clear by
"write erase" then just reboot by power off!
""Gareth Hinton"" <[EMAIL PROTECTED]> wrote in message
986m1l$i5b$[EMAIL PROTECTED]">news:986m1l$i5b$[EMAIL PROTECTED]...
> From what I've seen of this command, it seems to allow a DCE interface to
> receive timing from a DTE.
> Would like to see a decent explanation of its function.
> Never seen it before. I'm not sure whether you're using it in error when
you
> should be using a DCE cable and setting clockrate, or whether you're ahead
> of me and you know a neat trick.
>
> Cheers,
>
> Gareth
>
> > ----- Original Message -----
> > From: robert lowery <[EMAIL PROTECTED]>
> > Newsgroups: groupstudy.cisco
> > To: <[EMAIL PROTECTED]>; Eric ding <[EMAIL PROTECTED]>
> > Sent: Wednesday, March 07, 2001 8:58 AM
> > Subject: Re: strange question about dce setting?
> >
> >
> > > Have you tried to use a special crossover cable... that is db60 both
> ends
> > but wired with
> > > one end dce and the other dte. To make it work you add the command
> > clockrate 64000 (for
> > > example) on the interface that has the dce end. If you try to add
> > clockrate on the dte
> > > end ..it will not allow you to do so. If you do a show controler
serial
> > (port no) it
> > > will tell you what type of end is attached.
> > >
> > > ps I sell these specials cables on ebay and direct.
> > >
> > > bob...aka barronvonpuppy
> > >
> > >
> > > Eric ding wrote:
> > >
> > > > two 2500 routers,routerA and routerB, back-to-back connection
.both
> of
> > > > them use serial 0,when i set routerA's serial for dce,i got the
> output
> > > > below:
> > > > routerA(config-if)#dce-terminal-timing-enable
> > > > %not allowed on dte interface
> > > > but if i use the command below:
> > > > routerA(config-if)#no dce-terminal-timing-enable
> > > > routerA(config-if)#dce-terminal-timing-enable
> > > > it does work.
> > > > i was confused about it!
> > > > any suggestion will be appreciated!
> > > >
> > > > _________________________________
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