Hello!

Is it possible to add interface name to output of:
interface pppoe-server print detail

Which interface name do you want to see ?
As PPPoE interface name is included to the output.

interface pppoe-server print detail
Flags: X - disabled, D - dynamic, R - running
0 DR name="<pppoe-ppp1>" user="ppp1" service="service1" mtu=1480 mru=1480
remote-address="00:0C:42:1F:97:24" encoding="MPPE128 stateless"
uptime=6d20h5m36s

I mean the interface which is used for pppoe protocol, the ethernet interface.

The problem is that on the mikrotik there is several pppoe servers with the same service name but on different ethernet interfaces. And I'd like to know which ethernet interface pppoe sessions belong to.

Wow! I've just found the command to discover underlying interface: