Date: Thu, 19 May 2011 13:55:36 GMT From: Frank Razenberg <frank@zzattack.org> To: freebsd-gnats-submit@FreeBSD.org Subject: kern/157182: lagg interface not working together with epair interface on bridge Message-ID: <201105191355.p4JDta7U047088@red.freebsd.org> Resent-Message-ID: <201105191400.p4JE0OIZ059565@freefall.freebsd.org>
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>Number: 157182 >Category: kern >Synopsis: lagg interface not working together with epair interface on bridge >Confidential: no >Severity: serious >Priority: low >Responsible: freebsd-bugs >State: open >Quarter: >Keywords: >Date-Required: >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Thu May 19 14:00:24 UTC 2011 >Closed-Date: >Last-Modified: >Originator: Frank Razenberg >Release: 8.2-STABLE >Organization: >Environment: FreeBSD laggtest.zzattack.org 8.2-STABLE FreeBSD 8.2-STABLE #1: Thu May 19 13:18:35 UTC 2011 root@laggtest.zzattack.org:/usr/obj/usr/src/sys/ZZAT amd64 KERNCONF ZZAT is jsut GENERIC with options VIMAGE >Description: The combination of an epair and lagg interface on a bridge seems to cause problems. When both types of interfaces are added to a bridge, dmesg first outputs >How-To-Repeat: csup 8.2-STABLE build/install/boot into kernel with options VIMAGE have dhcp server on network I had a em0 interface, not sure if it works better with others. ifconfig lagg create laggproto lacp laggport em0 ifconfig em0 up dhclient lagg0 >Fix: >Release-Note: >Audit-Trail: >Unformatted: >> error setting interface capabilities on lagg0 The bridge can still be used and it both interfaces are on placed on the bridge. It seems however that the epair and lagg do not communicate. Initially I believed this to be an epair problem and posted on freebsd-virtualization instead. For reference: http://lists.freebsd.org/pipermail/freebsd-virtualization/2011-May/thread.html#707 >> bound to 10.31.45.194 ifconfig epair create ifconfig bridge create ifconfig bridge0 addm lagg0 ifconfig bridge0 addm epair0a >> error setting interface capabilities on lagg0 ifconfig epair0a up dhclient epair0b >> no DHCPOFFERS received ifconfig bridge0 destroy ifconfig lagg0 destroy dhclient em0 >> bound 10.31.45.194 ifconfig bridge0 addm em0 ifconfig bridge0 addm epair0a ifconfig bridge0 up dhclient epair0b >> works # Note that simply removing lagg0 from the bridge and adding em0 to it instead # does NOT work. We need to use a completely new bridge.
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