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FinM Deployment Guide
Release 4.5.10
3‐1
Chapter 3: Network Guidelines
3.1 Scope of This Chapter
This chapter provides a description of the typical networking topology required by RADWIN's
Fiber in Motion Train‐To‐Ground solution.
Fiber in Motion Train‐To‐Ground solution.
3.2 Overview
Included in this chapter are:
•
A general introduction to the network requirements for trackside and on‐board net‐
works,
•
A description of the required routers' functionalities,
•
A data flow description,
•
Sample IP and VLAN assignment guidelines,
•
A short description of the update messages during handovers, and how the recom‐
mended network topology supports these messages.
The typical networking described in this chapter enables broadband Train‐To‐Ground
communication, while maintaining a handover time of less than 50ms.
communication, while maintaining a handover time of less than 50ms.
3.3 Wayside Network
The RADWIN Fiber in Motion best‐practice solution is based on a transparent layer 2
architecture:
architecture:
•
The backhaul network is connected to the Radio Base Stations (TBS) deployed along the
tracks side via GbE copper or fiber, as a layer 2 based network.
Follow the guidelines carefully. Any questions or clarifications should be
addressed to RADWIN's Professional Services team for an official response.
addressed to RADWIN's Professional Services team for an official response.
Prior to project rollout, a detailed network architecture (including topology and
HW to be used) should be shared with RADWIN for confirmation.
HW to be used) should be shared with RADWIN for confirmation.