[132480] in North American Network Operators' Group
Re: Network management software with high detailed traffic report
daemon@ATHENA.MIT.EDU (Sergey Voropaev)
Fri Nov 26 03:45:47 2010
In-Reply-To: <alpine.DEB.1.10.1011260740120.1154@uplift.swm.pp.se>
Date: Fri, 26 Nov 2010 11:45:38 +0300
From: Sergey Voropaev <serge.devorop@gmail.com>
To: Mikael Abrahamsson <swmike@swm.pp.se>
Cc: nanog@nanog.org
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
We are using cisco switches like as 3750, 6500 etc. So there is no
fairqueue.
On 26 November 2010 09:43, Mikael Abrahamsson <swmike@swm.pp.se> wrote:
> On Fri, 26 Nov 2010, Sergey Voropaev wrote:
>
> We use a several connections to the financial providers. This connections
>> are low bandwidth (up to 2 Mbps). This connections used by a number of
>> front
>> end services from a nubmer of departments and we could not differentiate
>> its
>> and configure QoS. But from time to time some one produce an extremely
>> high
>> traffic spikes (less than 30 seconds) without congestion avoidance
>> mechanisms. Our task - is to find such applications and report to
>> management
>> and developers a problem. Also if we'll be aware about it we could
>> configure
>> QoS.
>>
>
> What kind of queuing are you using?
>
> It sounds like configuring fair-queue on the interface (if your platform
> supports that, usually the ones with 2M interfaces do), it should help with
> the problem you're describing.
>
> If you have CPU to spare, configure fair-queue everywhere you can where you
> don't have a "better" QoS-configuration in place. It really solves a lot of
> the problems people are seeing with FIFO and mixed traffic.
>
> --
> Mikael Abrahamsson email: swmike@swm.pp.se
>
