Hi
I’m an advanced user on Mikrotik systems. After more than six months reflecting on the run BGP based on the MK, I replaced my Cisco 3825 to CCR1036-12G-4S ((RouterOS v6.19). I have two ISP with a full array of BGP. The first ISP: symmetrical 200Mb/s, second ISP 100Mb/s.
I have a subtle problems of IP flows.
symptoms:
- Very often you can not complete download large files (over 500MB)
- Speedtest.net - at 95% download, tip begins to gently fall (by 2s) and oscillates around 90Mbit / s + - delta 0,5Mbit, and the test never ends. This is repeated every time. It looks as if some bandwidth limiter, which does not exist.
- Consist website loaded slowly
- Some web pages do not make at all. The page structure is broken.
From the beginning I had implemented PCQ but in order to eliminate possible causes I led to a clean, simplest configuration. Only IP routing with BGP.
I have no problems with BGP as such.
I verified ISP - it’s not their problem.
I checked the CPU Mikrotik - is quite ok - one core is sometimes busy in the range of 60-100%, I think of it is responsible for the GUI of WinBox. ALL system uses 800MB of 4GB RAM.
I would add that, as I’ll put back the CISCO router everything back to order.
It looks like a performance problem of fast flow, the problem of buffers/CPU on MK.
Any ideas?