ETSI MEC Reference Architecture
In its first phase, the ETSI MEC has defined the various hardware and software components that make up a MEC environment, defined APIs for applications to publish and consume services, specified the initial set of network context related services and outlined how MEC applications should be orchestrated.
Given the strong affinity between NFV and edge computing, as seen from the above PoCs, it is no surprise that the ETSI MEC reference architecture looks remarkably like the ETSI NFV reference architecture. The one major difference is that MEC has to provide access to the subscriber information, RAN context and RAN management through standardized APIs. This figure from ETSI GS MEC 003 V1.1.1 shows the reference architecture:
The ETSI MEC architecture is divided into three parts:
1. Mobile edge host level
2. Mobile edge system level
3. Networks related entities (wireless, wired or local networks)