Interface Type | Virtual Test Head VTH | Underlying Protocol | Completion Status |
|---|---|---|---|
| O1 | O1 VTH | NETCONF | |
| A1 | A1 VTH | RESTful/HTTPS | |
| E1 | E1 VTH | SCTP | |
| F1 | F1 VTH | SCTP | |
| E2 | E2 VTH | SCTP | |
| FH | FH VTH | M-Plane is NETCONF, and CUS is SCTP |
The VTH development is closely aligned with the SIM project. The message generators developed under SIM project will be mostly reused in VTH.