When troubleshooting network issues it’s helpful to understand if the issue is occurring at Layer 2 or Layer 3 of the OSI model. If you’re able to get local communications to work but the ...

OSI Protocol Stack The conceptual OSI protocol stack models how network data moves from one computer through another, by way of succeeding layers of computer software.

In this continuation of his tip on ISDN implementation, Chris Partsenidis discusses the OSI Layers, protocols, components and router options used by ISDN.