One of the processor cores is constantly under high load, in the tools profile this core is used by the management process and it doesn't depend on the amount of traffic.
Total CPU load 10-50%.
The network is working fine, but management of mikrotik is difficult, commands are executed for a long time, sometimes it doesn't respond to snmp.
I read about similar problems and often the cause was SNMP, but I tried to disable SNMP and there was no result. The message sometimes appears in the logs "snmp/warning timeout while waiting for program 20"
What is configured on CCR1072 (RouterOS 6.49.5):
3984 NAT rules (src-nat 1:1)
8 filters (fasttrack connection enabled)
1 mangle
290 vlans
313 ip addresses on mikrotik's interfaces
317 ip routes (21 via ospf)
5 OSPF neighbors
1 bonding
NO scripts
NO queues
NO BGP
NO Hotspot
NO tunnels and encryption (IPSec/L2TP etc.)
What I tried and it didn't solve the problem:
- disabled mangle rule
- added "no track" RAW rules for clients who don't use NAT
- disabled dhcp-relays
- disabled SNMP
- disabled filters rules
- MAC-Server, MAC-WinBox only from ether1
- discovery interface: none
- disabled all ip-services
- disabled DNS allow remote requests, filtered 53/UDP
- disabled LCD
What other process can use "management" like this?