Date: Thu, 03 Mar 2022 16:28:13 +0000 From: bugzilla-noreply@freebsd.org To: bugs@FreeBSD.org Subject: [Bug 262316] em(4) does not autonegotiate when fixed media is set Message-ID: <bug-262316-227-y1M5n0PxPT@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-262316-227@https.bugs.freebsd.org/bugzilla/> References: <bug-262316-227@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D262316 Stefan E=C3=9Fer <se@FreeBSD.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Resolution|--- |Not A Bug Status|New |Closed CC| |se@FreeBSD.org --- Comment #1 from Stefan E=C3=9Fer <se@FreeBSD.org> --- The behavior is correct according to the standard! See: https://en.wikipedia.org/wiki/Duplex_mismatch If a device is set to a fixed speed and media setting, a connecting device configured to perform auto-negotion may detect the speed, but must assume half-duplex mode. This may not be the expected behavior today, but is what the standard deman= ds. Either use auto-negotiation on both interfaces or set both to matching mode= s. --=20 You are receiving this mail because: You are the assignee for the bug.=
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