We are using cisco switches like as 3750, 6500 etc. So there is no fairqueue.
On 26 November 2010 09:43, Mikael Abrahamsson <[email protected]> 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: [email protected] >

