i386/69460: the nic's speed slow down when both side been set to 100Mb full duplex mode

[Savvy Chen]

>Number:         69460
>Category:       i386
>Synopsis:       the nic's speed slow down when both side been set to 100Mb full duplex mode
>Confidential:   no
>Severity:       serious
>Priority:       high
>Responsible:    freebsd-i386
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Fri Jul 23 03:40:20 GMT 2004
>Closed-Date:
>Last-Modified:
>Originator:     Savvy Chen
>Release:        4.5 to 4.9
>Organization:
ArrayNetworks
>Environment:
FreeBSD fremont.arraynetworks.com.cn 4.5-RELEASE FreeBSD 4.5-RELEASE #0: Mon Jan 28 14:31:56 GMT 2002     murray at builder.freebsdmall.com:/usr/src/sys/compile/GENERIC  i386

FreeBSD bsd4602 4.9-RELEASE FreeBSD 4.9-RELEASE #0: Mon Oct 27 17:51:09 GMT 2003     root at freebsd-stable.sentex.ca:/usr/obj/usr/src/sys/GENERIC  i386
>Description:
When the nic's speed been set to autoselect, the speed is about 1Mb/s tansmiting a big file. But when the nic's speed been set to 100Mb full duplex mode on both side, the speed would be about 300Kb/s.
>How-To-Repeat:
The server[FreeBSD] and client's[FreeBSD or other OS] nic speed set to 100baseTX and full-duplex.
>Fix:

>Release-Note:
>Audit-Trail:
>Unformatted: