Reference Architecture

This section describes the reference architecture, the function blocks, and the function entities of Escalator for the reader to well understand how the basic functions to be organized.

The software stack on each node is generally as shown in the table below.

_images/figure2.png

Since the upgrading of control node will not affect the VNFs service in the blue box, this chapter will focusing on the upgrading of compute nodes.

Precondition of Upgrade