Product : Citrix, XenServer/7, Enterprise
Feature : Advanced Network Switch, Networking, Network and Storage
Content Owner:  Roman Macek
Summary
Yes (Open vSwitch) - vSwitch Controller
Details
The Open vSwitch is fully supported

The vSwitch brings visibility, security, and control to XenServer virtualized network environments. It consists of a virtualization-aware switch (the vSwitch) running on each XenServer and the vSwitch Controller, a centralized server that manages and coordinates the behavior of each individual vSwitch to provide the appearance of a single vSwitch.
The vSwitch Controller supports fine-grained security policies to control the flow of traffic sent to and from a VM and provides detailed visibility into the behavior and performance of all traffic sent in the virtual network environment. A vSwitch greatly simplifies IT administration within virtualized networking environments, as all VM configuration and statistics remain bound to the VM even if it migrates from one physical host in the resource pool to another.

Details in the XenServer 7.0 vSwitch Controller Users Guide: http://bit.ly/2d98foz