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.