From: Jake (jakeczyz@xxxxxxxxx)
Date: Sun Jul 21 2002 - 15:55:26 GMT-3
Well said!! The only other thing I might add is that you can think of it in te
rms of DTE
and DCE. Whenever you connect two DCE together or two DTE together, you'll need
to
crossover, otherwise use straight through. Since routers, firewalls, and, of co
urse, PC's
are all considered DTE (data terminal equipment) while switches, hubs, and brid
ges are
considered DCE (data communications equipment) the rules make sense.
Just my $.02 worth.
HTH,
Jake
9102
--- Asim Khan <asimmegawatt@yahoo.com> wrote:
> Tom,
>
> The decision when to use Cross and when to use
> straight cable depends upon the interface type. By
> defualt all the interfaces are grouped in two classes;
> MDI (media dependent interface) and MDI-X (media
> dependent interface-Crossover i.e internally crossed).
> All the end devices have MDI interfaces like Routers,
> Computers, Firewalls etc. Whereas all the intermediate
> devices have MDI-X interfaces like Switches and Hubs.
> So when you connect two MDI interfaces you will have
> to use Cross cable. Similarly between MDI and MDI-X
> interfaces you have to use Straight and between two
> MDI-X interfaces you have to use Cross. So from above
> discussion we conclude
>
> Computer to Router ----> Cross Cable
> Router to Router ----> Cross Cable
> Computer to Computer -----> Cross Cable
> Computer to Switch/Hub---> Straight Cable
> Router to Switch/Hub ----> Stright Cable
> Switch to Switch -----> Cross Cable
>
> Remember on some Hubs we have uplink port which can be
> changed from MDI to MDI-X and vice versa through the
> toggle switch located near the uplink port.
>
> Hope this helps.
>
> Asim Khan
>
>
> --- Tom Young <gitsyoung@yahoo.co.jp> wrote:
> > Hi, group
> >
> > A very simple question ,may I use crossover cable
> > to
> > connect a computer to router's ethernet port
> > directly?Certainly I will set the port address and
> > computer's address in one subnet.
> >
> > Thanks
> >
This archive was generated by hypermail 2.1.4 : Sat Sep 07 2002 - 19:36:38 GMT-3