From: Greg Ferro (gferro@xxxxxxxxxxxxxxxxxxx)
Date: Sun Apr 08 2001 - 06:40:17 GMT-3
Tariq, gosh you ask a lot of questions, one day you are going to think
things out before you email the group on every little thing. A hint for you
- more thinking, less talking.
Both of your cables are DTE, you can't set clock on a DTE interface. The
standards specifically say that clock must be provided by the DCE side. On
many Cisco routers you can actually enter a clock rate even if the
interface is DTE. But it will "disappear" when you show the config. (useful
troubleshooting tip!!!! fast way to work out which end is DCE )
The Cisco router cable has 60 pins in it. For different interface types,
different pins are used. But particularly there are certain pins that
loopback to other pins. This determines the type of cable to the module and
whether it is DCE or DTE. So no magic jumper box is ever going to change this.
For Cisco cables, any cable that is male will be DTE, any cable that is
female will be DCE. This is a CISCO rule.
Oh yeah, DB15 is always X21 interface for Cisco. Another Cisco rule.
At 01:57 AM 7/04/2001, you wrote:
>I have never had any problem with clockrate on 4000.. I think you are
>wrong.. ;-)
>
>----- Original Message -----
>From: "Daniel C. Young" <danyoung99@mediaone.net>
>To: "'Tariq Sharif'" <tariq_sharif@btinternet.com>; <adiment@uswest.com>;
><ccielab@groupstudy.com>
>Sent: Friday, April 06, 2001 1:44 PM
>Subject: RE: Cisco 4500 15 pin Serial Interface
>
>
> > If you connect it, instead, to a 2500, then you can configure clock rate
>on
> > the 2500. The 4500, for some reason, just won't seem to take the clock
>rate
> > command. This has been my experience.
> >
> > Please correct me if you know otherwise.
> >
> > Daniel Young
> > Sr. Network Engineer
> > Internet Data Center
> > SBC Service Inc. - ITO
> >
> > (949) 221-1928 Office
> > (714) 350-8945 Cell
> > ICQ# 109846891
> >
> >
> > -----Original Message-----
> > From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]On Behalf Of
> > Tariq Sharif
> > Sent: Friday, March 23, 2001 6:57 AM
> > To: adiment@uswest.com; ccielab@groupstudy.com
> > Subject: RE: Cisco 4500 15 pin Serial Interface
> >
> >
> > Both ends of the cable are reported to be DTEs. I have a # of DCE to DTE
> > cables but they are all DB60 (both ends). I've got 2 cables that are DB15
>to
> > DB 60 but both ends are DTE to DTE. If I buy a connector box (cheap
>options)
> > I need to cross some pins.
> >
> > Does anyone know the pins that need to be crossed?
> >
> > Many thanks & regards.
> >
> > Tariq Sharif
> >
> >
> > -----Original Message-----
> > From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]On Behalf Of
> > adiment@uswest.com
> > Sent: 15 March 2001 17:19
> > To: ccielab@groupstudy.com
> > Subject: RE: Cisco 4500 15 pin Serial Interface
> >
> >
> >
> > Do a "show controller" for the DB60 serial interface and make sure it's a
> > DCE cable.
> >
> > -----Original Message-----
> > From: Tariq Sharif [mailto:tariq_sharif@btinternet.com]
> > Sent: Thursday, March 15, 2001 11:13 AM
> > To: Ccielab@Groupstudy. Com
> > Subject: Cisco 4500 15 pin Serial Interface
> >
> >
> > Has anyone used Cisco 4500 15 pin Serial Interface. I'm connecting it to
> > another 4500 which has DB60 serial connection. The cable shows 15 pin to
>be
> > DTE but clockate command at DB60 doesn't appear in config. Any ideas?
> >
> > Many thanks & regards.
> >
> > Tariq Sharif
> > LAB SWAP Message board on groupstudy.com.
Regards
Greg Ferro | |
Senior Network Engineer, CCIE #6920, CCNP ||| |||
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