Priscilla Oppenheimer wrote:
>
> Regarding the original question, though I couldn't find a URL to confirm
> this, I don't think the Ethernet AUI port on the 2500 series Cisco router
> supports full duplex. I think the 2500 routers came out before full duplex
> Ethernet existed for one thing. Also, I doubt that it is possible to
> support full duplex with an AUI attachment. You would need a way to tell
> the transceiver to ignore collision detection, and that's probably not
> supported.
>
The 2500 e0 is definitely half-duplex CSMA/CD only. It uses a LANCE chip
as its "NIC" which predates fast Ethernet. AFAIK, there are no Cisco
routers with 10Mb Ethernets that support full-duplex. Prior to the
introduction of fast Ethernet in the industry, there were a few NIC
vendors that added full-duplex capability to 10Mb cards. But it never
really caught on; plus it was superceded by 10/100.
Marty Adkins Email: [EMAIL PROTECTED]
Mentor Technologies Phone: 240-568-6526
133 National Business Pkwy WWW: http://www.mentortech.com
Annapolis Junction, MD 20701 Cisco CCIE #1289
_________________________________
FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html
Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
