kern/110561 "em" driver shuts down interface when "ifconfig media 100baseTX" is invoked

[Infraservice hostmaster]

| 
| On Tue, Mar 20, 2007 at 07:40:10AM +0000, Infraservice hostmaster wrote:
| > The following reply was made to PR kern/110561; it has been noted by GNATS.
| > 
| > From: Infraservice hostmaster <hostmaster at Infra-Service.ca>
| > To: bug-followup at freebsd.org
| > Cc:  
| > Subject: Re: kern/110561 "em" driver shuts down interface when "ifconfig media 100baseTX" is invoked
| > Date: Tue, 20 Mar 2007 03:31:54 -0400 (EDT)
| > 
| >  | 
| >  | Synopsis: :"em" driver shuts down interface when "ifconfig  media 100baseTX"  is invoked
| >  | 
| >  | State-Changed-From-To: open->closed
| >  | State-Changed-By: remko
| >  | State-Changed-When: Tue Mar 20 06:42:06 UTC 2007
| >  | State-Changed-Why: 
| >  | This is not a bug, this is a problem in the negotiation on the other
| >  | side. If the switch you are attaching to is not supporting the fixed
| >  | setting of the speed and duplex settings or incorrectly negotiates then
| >  | this is not a problem of the driver nor the card but a switching
| >  | problem. Please try to findout FIRST what the real problem is and THEN
| >  | get back to me if this really is a FreeBSD problem (Discuss this on the
| >  | networking mailinglist please >
| >  | http://lists.freebsd.org/mailman/listinfo/freebsd-net/).
| >  
| >  
| >  	This happens to every interface we tried it on!
| 
| Right, which is consistent with the switch failing to negotiate.


	wrong, each interface connects to distinctly different devices

	one is a cisco adsl router, another is a FBSD 6.2 box with an
	Intel fxp card - it ifconfigs media/mediaopt just fine BTW