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Subject: Re: svn commit: r306577 - head/sys/netinet
To: koobs@FreeBSD.org, Eric van Gyzen <vangyzen@FreeBSD.org>,
 src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org
References: <201610020142.u921gjsJ016528@repo.freebsd.org>
 <46cdc5d8-75ee-16f6-ee9d-d9c14cb5098e@FreeBSD.org>
Cc: Steven Hartland <smh@FreeBSD.org>, Gleb Smirnoff <glebius@freebsd.org>,
 David Bright <dab@FreeBSD.org>
From: Eric van Gyzen <eric@vangyzen.net>
Message-ID: <89972ae0-2125-1966-4845-38c6a4d20b1e@vangyzen.net>
Date: Sun, 30 Oct 2016 14:45:56 -0500
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On 10/30/16 4:44 AM, Kubilay Kocak wrote:
> On 2/10/2016 12:42 PM, Eric van Gyzen wrote:
>> Author: vangyzen Date: Sun Oct  2 01:42:45 2016 New Revision: 306577
>> URL: https://svnweb.freebsd.org/changeset/base/306577
>>
>> Log: Add GARP retransmit capability
>
> Thanks for this David & Eric
>
> I presume this is (or would be) quite complementary to D4111 [1]
> (Gratuitous ARP's for lagg(4) failover) when it lands? I'm thinking
> particularly given the various states upstream switch ports can have
> during topology changes.
>
> [1] https://reviews.freebsd.org/D4111

Yes, I expect it would be nicely complementary.  The disruption of a 
topology change increases the chance of a dropped packet, so it would be 
wise to retransmit the GARP sent by lagg(4).

Eric