Nuage Networks Nuage Networks Nuage Networks Alcatel-Lucent PayPal This proposal describes a mechanism that can be used to detect Data Path Failures and sanity of VXLAN Control and Data Plane for a given VXLAN Segment. This document defines the following: o Information carried in a VXLAN "Echo Request", and o "Echo Reply" for the purposes of fault detection and isolation, and mechanisms for reliably sending the Echo Request and reply.