Chapter 4 Network Layer Computer Networking: A Top Down Approach 6th edition Jim Kurose, Keith Ross Addison-Wesley March 2012 Application Layer. - ppt download
Switch, Network | HIT Wiki | Fandom
Computer network diagram - Wikipedia
DSL modem - Wikipedia
Network switch - Wikipedia
Avaya ERS 8600 - Wikipedia
How to Use a Router As a Switch: 11 Steps (with Pictures)