That's 2 and I did find this article.
http://quux.wiki.zoho.com/Autonegotiation.html Other opinion's (Where's Shook, Sherry and Espinola when you need em) From: Kennedy, Jim [mailto:[EMAIL PROTECTED] Sent: Friday, November 21, 2008 9:43 AM To: NT System Admin Issues Subject: RE: Why would you set a NIC to 100/full or Auto? +1 2 is silly since you would only do this on core static equipment like servers and router and switches that rarely reboot. However I still manually set them for servers since they all go into a 6509 and the newer nics have trouble negotiating with them..... From: John Hornbuckle [mailto:[EMAIL PROTECTED] Sent: Friday, November 21, 2008 9:40 AM To: NT System Admin Issues Subject: RE: Why would you set a NIC to 100/full or Auto? I haven't heard about number 2, and it doesn't really make sense to me since auto-negotiation should only be taking place when a link is established. But I confess to believing in number 1. I'm not so sure that was only "in the old days", though; I still see the occasional speed/duplex mismatch. So for servers, I do have a habit of manually setting those on the NIC and switch port. John Hornbuckle MIS Department Taylor County School District 318 North Clark Street Perry, FL 32347 www.taylor.k12.fl.us From: Brumbaugh, Luke [mailto:[EMAIL PROTECTED] Sent: Friday, November 21, 2008 9:37 AM To: NT System Admin Issues Subject: Why would you set a NIC to 100/full or Auto? I heard 2 arguments and both seem valid. I find it a pain to have to go back in and set NIC speed on the switch and server/PC. Over wire builds suck (WDS) for speed etc. 1. Was that in old days the NIC chips had hard time negotiating and it is no longer needed, except that it would be good practice for servers which rarely change. 2. The other was that the auto-negotiate packets are 30% of the broadcast packets and by removing all doubt, they lessen the traffic. What exactly is the real story? I never had to set this before on the pc side of the LAN. TIA Luke L. Brumbaugh Network Engineer Butler Animal Health Supply Ph:(614) 659-1736 ********************************************************************** CONFIDENTIALITY NOTICE: The information transmitted in this message is intended only for the person or entity to which it is addressed and may contain confidential and/or privileged material. Any review, retransmission, dissemination or other use of this information by persons or entities other than the intended recipient is prohibited. If you received this in error, please contact the sender and destroy all copies of this document. Thank you. Butler Animal Health Supply ********************************************************************** ~ Finally, powerful endpoint security that ISN'T a resource hog! ~ ~ <http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/> ~
