Mikrotik 6.48 and cpu 100%

RouterOS Forwarding Protocols
1

I have a server with a Xeon processor, 24GB of RAM, it is used for BGP. 4 full feeds from upstreams. There are no scripts there, and the sheduler is also empty. Bandwidth about 1.4 - 2.0 Gbps. Network cards are Intel x520 DA2.
I use /tools profile to find issue: Every 6 hours, one routing process jumps to 100% usage. It changes the core every few seconds. What could be the reason?

Has anyone had such a problem? Note that the traffic is not increasing, pps also everything is normal.
graph.png

2

Have you monitored the network bandwidth usage before and during these spikes?

3

Yes, i’m using librenms. Nothing suspicious.

4

Anyone ???
cpu.png

5

It seems like Bgp doing some work. Maybe updating routes or cache. Is route cache enabled?

Enviado desde mi Mi A2 mediante Tapatalk

6

What cache, where i can find it to check ? ok , i find it.

ip  route cache print       
      cache-size: 119277
  max-cache-size: 8388608