This document specifies Operator Virtual Connection (OVC) Services based mainly on the service attributes defined in MEF 26.1; there are also some service attributes defined in this document that go beyond MEF 26.1. The key service constructs are the OVC itself and the OVC End Points at the External Interfaces (EIs) – the External Network Network Interface (ENNI) and the User Network Interface (UNI). Per MEF 26.1, at least one OVC End Point is at an ENNI. Three General OVC Services are defined, based on OVC Type. In addition, two E-Access and two E-Transit services are defined, based on OVC Type and the EIs involved.