I'm new to APIC-EM and still learning 
. Got my APIC-EM installed and discovered routers just fine.
In Chrome Postman, i tried this -
GET : https://apic-em-controller:8049/api/v1/topology/l3/ospf
RESULT:
{
"response": {
"errorCode": "RBAC",
"message": "Failed to provide a CAS service ticket to validate",
"detail": "Failed to provide a CAS service ticket to validate"
},
"version": "1.0"
}
in APIC-EM Swagger, I tried the API and it worked. I received 200 OK.
