Originally Posted by
pheoxs
Network infrastructure is a huge field, a lot in the IT space but it's also growing rapidly in the industrial automation space since so many devices are networked now. Many plants have thousands of IP devices connected now. We use multiple vlans to stack networks onto switches to seperate different types of data for security (though many places still use entirely separate switch networks). One network for the remote IO panels, another network for the plant network, another for the corporate network, another intermediary network between the plant and the corporate network. Sometimes MCCs having with own network sub loops