For eBGP or iBGP peers? Do you use public or private IPs for loopback?1) Make sure you have loopback interface setup with IP address.
you have route reflector enabled on both routers for iBGP?the only one with different settings is the ibgp peer (it has route reflector setup)
What do you suggest regarding the PCC classifier???sure, but if you're using NAT, long-time connections will break periodically. so you'd better use http://wiki.mikrotik.com/wiki/PCC#Appli ... _Balancing
by this way I can have load balance and failover combined?in the new routeros versions, u do not have to mark any packets to obtain a load balance. you could simply add 2 gateways in your ip route to get your load balance work