MIGRATION OF ROADSIDE TELECOMMUNICATIONS TO IP WHILST MAINTAINING THE INVESTMENT

摘要

The Highways Agency's current roadside network infrastructure is based on 20-year-old communications technology. With the general move to Internet protocols (IP), the Highways Agency is keen to replace its legacy systems with a more modern IP infrastructure, offering cost savings, flexible routing, disaster recovery sites and simplification of the network. An IP network is fully connected, allowing any device to exchange data with any other, which raises a number of security, verification and management issues. This paper examines how the legacy protocols will be transmitted over IP, the issues involved in mixed legacy and IP networks and the measures being planned to address these.