[SOLVED] RB1100AH with v6.7 running BGP got 100% CPU

Hardware MikroTik hardware general
1

I have RB1100AH with ROS v6.7 running BGP with one instance and receive full internet routes from my upstream.
No filter rules, no mangles, no queues.
I’ve monitor it for some time and found that the CPU always goes up to 100% for 15-20 seconds and go back to normal.
This symptom (CPU goes up to 100%) occured almost like once every 20 to 30 seconds and is very annoying.

I attached 3 dumpscreens with time to show what i meant.

00:02:18 – CPU 5%
1.png
00:02:36 – CPU 100%
2.png
00:02:55 – CPU 5%
3.png
Any hints what is going on ?
Thanks

2

Downgrade to 5.26 , problem solved. Thanks.

3

I also have this problem.
With v5.26 it works ok, but no, this is not a resolution, this is a workaround…
Is this a problem that mikrotik is working on?

4

all routes are refreshed in specific intervals if CPU usage is very low and will not affect overall performance.