Hello! Help please.
Two rb1200. Routing between them.
If I do ping from 10.0.0.254 to 192.168.0.253 - ping is excellent, no losses.
If I do ping from 10.0.0.1 to 10.0.0.254 - Ping also excellent.
If I do ping from 10.0.0.1 to 192.168.0.253 - ping is lost to 2-5%, while the pings with large size packets are lost at ~ 20-30%

RB1200 CPU load is not large, about 30-40% of the traffic is about 150 Mbit and 15-20k pps
What could it be? Thank you!

what version of RouterOS?
what ports are you using?
what configuration?
are there any queues?

what version of RouterOS?
what ports are you using?
what configuration?
are there any queues?

Version 5.11.
10.0.0.254 - Port 7
192.168.0.254 - bonding 3 and 5 port (balance r-r)

Version 5.11.
192.168.0.253 - bonding 3 and 5 port (balance r-r)

Queues do not use.
Only routing.
At 192.168.0.253 raised BGP-routing with my ISP. The provider giving only default route 0.0.0.0 / 0

In the last rb1200 bad ports (9 and 10)
the first port is not working.
In the other rb1200 9 port is not stable.

Concluded that the last rb1200 ports do not work correctly.