Date: Fri, 25 Mar 2011 14:10:13 -0700 From: Freddie Cash <fjwcash@gmail.com> To: Rumen Telbizov <telbizov@gmail.com> Cc: Denny Schierz <linuxmail@4lin.net>, freebsd-stable <freebsd-stable@freebsd.org> Subject: Re: SAS HBA LSI 9200-8e supported under 8.2? Message-ID: <AANLkTinmnOtLisOeGkmjCsLU6b=pqauzv_cLvLW8QgFm@mail.gmail.com> In-Reply-To: <AANLkTincriB%2B4%2B4H4hqhwWj_u3JABm6DpBzKSCbGboh9@mail.gmail.com> References: <1300618959.2191.5.camel@netti> <AANLkTi=8%2BrM9CJUd2ACB8U1QA9LzBwcwBLg0LjAwOTpH@mail.gmail.com> <1300887484.5930.72.camel@pcdenny> <AANLkTinGw0Lbnhu%2Bbo01RiRgPN1TpBouG1XdxM4T9ZOz@mail.gmail.com> <8CDBE9B8-4834-4F2C-84B9-2DA371D5B2C3@4lin.net> <AANLkTik8NmvRdH_SfXzcvTxVvhy8n77Q80hbaXniLFBQ@mail.gmail.com> <1301056115.21588.103.camel@pcdenny> <AANLkTikxOiq_H9M_EU6dLAQ3jt=8ynaD_dyCs2t5-7rL@mail.gmail.com> <AANLkTincriB%2B4%2B4H4hqhwWj_u3JABm6DpBzKSCbGboh9@mail.gmail.com>
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On Fri, Mar 25, 2011 at 8:47 AM, Rumen Telbizov <telbizov@gmail.com> wrote: > On Fri, Mar 25, 2011 at 7:38 AM, Freddie Cash <fjwcash@gmail.com> wrote: >> On Fri, Mar 25, 2011 at 5:28 AM, Denny Schierz <linuxmail@4lin.net> wrot= e: >> > So, how complicated is load balancing with two Gb Network cards? :-) O= k, >> > that should be a new thread;-) >> >> Simple as pie. =C2=A0Read through lagg(4) to see how it's done from the >> command-line using ifconfig(8). >> >> ifconfig_lagg0=3D"laggproto round-robin laggport em0 laggport em1 inet >> 192.168.0.1/24" > > That's actually an interesting problem (although it really belongs to a > different thread). > Freddie, have you tried this with an HP Procurve (say 2910al) switch. > I did and a dual gigabit connection between two machines made the switch > cpu utilization to jump from around 1% to 30%. I guess it might be HP > specific problem due to the enormous mac address bounce between the two > ports. I am curious to know if anybody else has experienced similar > problems? Yes, using LACP trunking on the switch and lagg(4). I'll have to double-check the exact switch models but I believe one is a 2910 and the other is a 28-something. I've also done it using load-balance and fail-over using unmanaged switch ports. Never used round-robin, though. --=20 Freddie Cash fjwcash@gmail.com
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