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Date:      Tue, 17 Dec 2013 17:02:03 -0800
From:      Xin Li <delphij@delphij.net>
To:        Allan Jude <freebsd@allanjude.com>, freebsd-current@freebsd.org
Subject:   Re: 10-RC2 current wireless link aggregation not working correctly
Message-ID:  <52B0F40B.7020501@delphij.net>
In-Reply-To: <52B08B28.6040402@allanjude.com>
References:  <80a9ff942e0bf413ceaf9aa469b50687@rdsor.ro> <CAJ-VmonwU6nySMPdtBcL2TpOH01av5sfvz=4Co28r%2BiWYH85Nw@mail.gmail.com> <52B08B28.6040402@allanjude.com>

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On 12/17/13 09:34, Allan Jude wrote:
> If I am am understanding correctly, Dan and Nikolai say that just 
> running 'ifconfig' brings the lagg back to life. Why would that
> make a difference at all? Running ifconfig with no parameters
> shouldn't be changing anything.

I don't really believe these claim.

I had similar issue in the past and found an 'arp -a -d' would "fix"
it so I didn't pursued further but I think this would be an
interesting problem to get addressed.

If I would take an guess, I would start from making lagg(4) interface
to initiate one or a few gratuitous ARP broadcast when the active port
changes.  Some switches could use this to kick out their (outdated)
memory of where the port is.

Cheers,
- -- 
Xin LI <delphij@delphij.net>    https://www.delphij.net/
FreeBSD - The Power to Serve!           Live free or die
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