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Date:      Thu, 19 Mar 2009 16:35:31 +0100
From:      Christian Meutes <christian@errxtx.net>
To:        Christopher Arnold <chris@arnold.se>, Peter Spekreijse <peter@spekreijse.net>
Cc:        Steve Bertrand <steve@ibctech.ca>, isp@freebsd.org
Subject:   Re: ISPs?
Message-ID:  <17AF069575D7E2B24912CFBA@tok>
In-Reply-To: <alpine.BSF.2.00.0903191554160.5077@localhost>
References:  <153046.19925.qm@web63901.mail.re1.yahoo.com> <907077794.20090317173752@homelink.ru>	<49C05E35.8070609@ibctech.ca> <001501c9a795$07058de0$1510a9a0$@com>	<49C1C3D0.5060304@neely.cx> <CC6BF6C0-D134-4DE6-9D47-17E01AA71BBB@ekalb.net> <5F9EF08A583352985E262800@tok> <49C24561.5090301@spekreijse.net>	<49C253FE.3010408@ibctech.ca> <49C2583D.30502@spekreijse.net> <alpine.BSF.2.00.0903191554160.5077@localhost>

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I am also very interested in pps with IMIX type of traffic you are having.
How does FreeBSD with $preferred_BGP_daemon scales on IX with dozens or=20
hundred
of peers and having two or more full feeds?

How fast is the convergence in IGP/BGP? And how do you guys do=20
configuration changes
without interrupting everything (reloading daemon)?



--On Donnerstag, 19. M=C3=A4rz 2009 15:54 +0100 Christopher Arnold=20
<chris@arnold.se> wrote:

>
>
> On Thu, 19 Mar 2009, Peter Spekreijse wrote:
>
>>> Peter Spekreijse wrote:
>>>> We do use it for routing, using FreeBSD, booting from flash, running
>>>> completely in RAM. We have created a solid state BGP/OSPF router with
>>>> FreeBSD. Our border routers run Quagga (bgp and ospf) but we are in =
the
>>>> process of moving to OpenBGPD / OpenOSPFD. Our internal routers =
already
>>>> use OpenOSPFD. We are using Network Appliances from portwell as
>>>> hardware (8 * 1 Gbit/sec ethernet). We're in process of testing other
>>>> appliances.
>>>
> What thruput and PPS are you seeing on theese?
>
>> We've two full bgp tables in our border routers (275K+ prefixes per
>> table).  The quagga version we use get's real busy if one of our BGP
>> peers disappears  suddenly. It starts recalculating the routing table
>> and neglects the BGP  sessions. Sometimes the other BGP sessions
>> time-out, then we lose every  route.
>>
> Opps very bad...
>
> Have you tried going SMP so one CPU can dio the BGP thread and the other
> forwarding and updating the route table?
>
> Or are you using polling(4)? In that case have you tried to give more %
> of the CPU to the userland processes?
>
>  	/Chris
>
> --
> http://www.arnold.se/chris/
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