http://info.softwaretoolbox.com/4-reasons-tunneling?utm_campaign=DataHub%20-%20Tunnelling%20Campaign%202016&utm_medium=External%20Websites&utm_source=CSIA%20X-Change%20Website

The greater availability of operational data created by the presence of standards such as OPC and the Internet of Things trend to “IP enable everything” has generated greater demand for access to the data across a wider number of locations and users. Add to that the potential for data sources at varying locations, with varying sources, different operating systems, different network segments, and the headache grows. However, getting that data from the factory floor to your systems and staff to monitor and act upon it has challenges. This whitepaper explores what a technology called OPC Data tunneling is, how it can be used for more than just OPC data, and provides a means of quantifying the cost of attempting to integrate data without tunneling.