Protocol “Layers”
1 Protocol “Layers” Networks are complex! r many “pieces”: m hosts m routers m links of various media m applications m protocols m hardware, software Question:
1 What is the Internet? Hosts or end-systems PCs, workstations, servers PDAs, phones, toasters Communication links fiber, copper, radio, satellite Routers.
What is the Internet?
CE80N Introduction to Networks & The Internet
CS E551 : Computer Network Review
Physical Layer1
