LACP LAGG device problems

[Scott Long]

Adrian, you're killing my spam filter!  But yes, our use of FreeBSD at Netflix is hardly a science project.  Http://openconnect.netflix.com

Scott

On Jul 21, 2013, at 1:31 PM, Adrian Chadd <adrian at freebsd.org> wrote:

> Barney,
> 
> I now work at netflix. We push >10gig per box. I'm working on making
> that much, much more than 10gig. It's not a "science project."
> 
> sheesh. :-)
> 
> 
> 
> -adrian
> 
> On 21 July 2013 09:23, Barney Cordoba <barney_cordoba at yahoo.com> wrote:
>> I wasn't referring to science projects. Nor did I say it wasn't useful.
>> Only that 10g is cheap now and quite a bit better. LAGG isn't perfect.
>> 
>> 
>> ----- Original Message -----
>> From: Adrian Chadd <adrian at freebsd.org>
>> To: Barney Cordoba <barney_cordoba at yahoo.com>
>> Cc: freebsd-net at freebsd.org; isp <mline at ukr.net>
>> Sent: Sunday, July 21, 2013 9:49 AM
>> Subject: Re: LACP LAGG device problems
>> 
>> Hah!
>> 
>> I'm pushing 20GE out using lagg right now (and fixing the er, amusing
>> behaviour of doing so.) I'm aiming to hit 40 once I get hardware that
>> doesn't get upset pushing that many bits. The netops people at ${JOB}
>> also point out that even today switches occasionally get confused and
>> "crash" a switchport. Ew.
>> 
>> So yes, there are people using lagg, both for failover and throughput reasons.
>> 
>> I'm working on debugging/statistics right now as part of general "why
>> are things behaving crappy" debugging. I'll see about improving some
>> of the peer reporting at the same time.
>> 
>> 
>> 
>> -adrian
>> 
>> On 21 July 2013 06:03, Barney Cordoba <barney_cordoba at yahoo.com> wrote:
>>> 
>>> --------------------------------------------
>>> On Sat, 7/20/13, isp <mline at ukr.net> wrote:
>>> 
>>> Subject: LACP LAGG device problems
>>> To: freebsd-net at freebsd.org
>>> Date: Saturday, July 20, 2013, 10:04 AM
>>> 
>>> 
>>> 
>>> 
>>> Hi! Can anybody tell me, is there any plans to improve
>>> LAGG(802.3ad)
>>> device driver in FreeBSD?
>>> It will be greate to have a possibility to set LACP mode
>>> (active/passive)
>>> and system priority.
>>> Also there is no way to set hashing algorithm and master
>>> interface
>>> (port).
>>> And we can't see any information about our neighbor.
>>> The same function in Linux is named Bonding and it is much
>>> more better.
>>> I realy can donate some money to those who can make this
>>> improvements.
>>> Best regards.
>>> 
>>> _______________________________________________
>>> 
>>> Why are you using LAGG when 10g cards are like $350? It's not
>>> a peering protocol nor it is PTP; can you see your "peer" info on
>>> an ethernet?
>>> 
>>> Bonding is a late 90s concept designed to connect 2 slow links to
>>> get higher speeds, back in the day when 100Mb/s was ambitious.
>>> The point of LAGG is that it's transparent; you can load balance
>>> traffic to multiple hosts or create a redundant link without having
>>> to have equipment running some special applications, or any special
>>> logic above the LAGG device.
>>> 
>>> Describing how you are using LAGG (and why) might be better
>>> than just asking for "improvements".
>>> 
>>> BC
>>> 
>>> _______________________________________________
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