DTE to DTE uses cross-over cables.
Is this correct?
""Bradley J. Wilson"" <[EMAIL PROTECTED]> wrote in message
031901c0608a$b9d87d20$ca01010a@bwilson">news:031901c0608a$b9d87d20$ca01010a@bwilson...
> Okay...I've been digesting the responses I've received about this issue,
and
> what I've come up with can be reduced to two comments:
>
> 1) The fact that flipping the MDI/MDI-X switch didn't initially work leads
> me to believe that I wasn't using it right. The fact remains that
> connecting a hub to a switch must be accomplished using a crossover cable.
>
> 2) Why is that? It's true that connecting devices at different layers of
> the OSI model requires a straight-through cable, and that connecting
devices
> at the same layer requires a crossover cable. So isn't it true that
> switches are layer 2, and hubs are layer 1? No. Hubs are actually layer
2
> devices, and here's why: while a hub may not understand or care about
source
> and destination MAC addresses, checksums, or what's in the "type" field,
it
> *does* know the rules of CSMACD communication, and has to play by the same
> rules as other layer 2 devices. Therefore, hubs can be considered Layer 2
> devices, and thus must be connected to switches with a crossover cable.
>
> Anyone see anything wrong with my synopsis above? Let me know. Just be
> careful with your caps lock key. ;-)
>
> Thanks,
>
> BJ
>
>
>
>
> _________________________________
> FAQ, list archives, and subscription info:
http://www.groupstudy.com/list/cisco.html
> Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
>
_________________________________
FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html
Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
