[Bug 262316] em(4) does not autonegotiate when fixed media is set

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=262316

J.R. Oldroyd <fbsd@opal.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Resolution|Not A Bug                   |---
             Status|Closed                      |Open

--- Comment #2 from J.R. Oldroyd <fbsd@opal.com> ---
Stefan, I believe you are mis-reading the standard.

You are quoting what the standard says to do in the event of autonegotiation
failure.  In that event, setting half-duplex is indeed the required behavior.

However, citing from the same article that you cited, "The Ethernet standards
and major Ethernet equipment manufacturers recommend enabling autonegotiation."

If both ends of a link are not under common administrative control, it may not
be possible to set both ends to matching modes.  Clearly, having a device
inform the other end what its configured capabilities are is preferable to
having a non-working link.

-- 
You are receiving this mail because:
You are the assignee for the bug.