Hello.
I have a CRS326-24G-2S+ switch on which ROS 7.11.2 is installed.

Option 82 is enabled on the switch:
/interface bridge
add add-dhcp-option82=yes

tcpdump:
Circuit-ID SubOption 1, length 25: 10.150.1.150 eth 0/11:111
Remote-ID SubOption 2, length 2: 11

Agent-Remote-ID - Identifies the remote host.
Agent-Circuit-ID - Identifies the circuit (interface or VLAN) on the switching device on which the request was received.

In RouterOS it’s the other way around.
Agent-Circuit-ID and Agent-Remote-ID swapped places.