Sorry if this is a double post but I can't find my post from last week.

I recently installed opmanager.

have a c3750 as a core switch and inventory/discovery is working, it finds bunch of hosts and devices.

It even sees switch details etc.

Next I tried to create a layer2 map.

However it only maps my workstation, the switch and the pc running opmanager.

I tried querying the switch with mib-browser according to:

https://www.manageengine.com/network-monitoring/faq/layer2-mapping-troubleshooting-device-mapping-does-not-exist.html

Any advise much appreciated.