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Date:      Tue, 11 Jan 2022 09:02:05 +0000
From:      bugzilla-noreply@freebsd.org
To:        bugs@FreeBSD.org
Subject:   [Bug 261100] After update to FreeBSD 13 Stable ( stable/13 aef4a2f5a ) lagg0 stop receiving traffic
Message-ID:  <bug-261100-227@https.bugs.freebsd.org/bugzilla/>

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D261100

            Bug ID: 261100
           Summary: After update to FreeBSD 13 Stable ( stable/13
                    aef4a2f5a ) lagg0 stop receiving traffic
           Product: Base System
           Version: 13.0-STABLE
          Hardware: amd64
                OS: Any
            Status: New
          Severity: Affects Some People
          Priority: ---
         Component: kern
          Assignee: bugs@FreeBSD.org
          Reporter: rpalov@e-card.bg

After we update one server from FreeBSD-CURRENT 13 r369433 to  stable/13
aef4a2f5a both lagg interfaces stop working.

One of them is in LACP mode other is in Failover mode.

Both interfaces are used as vlan parents.=20

All native interfaces( laggport ) are ibg* .

When we replace failover lagg in vlan definition with native interface the
network is working.=20

It can be reproduced if You include the native interface of the machine whi=
ch
is proved as working, for example igb0, to lagg0 and  migrate ip configurat=
ion
from igb0 to lagg0, then try use the lagg0 as uplink of the machine.=20

Cheers
Rumen

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