LINK LAYER

LINK LAYER

1. Links

   • Datagram
     • • Must be moved over each of the individual links in the end-to-end path

2. Link-layer frame

   • Transmits the frame into the link

3. Connect the difference Nodos

   • like
     • WiFi access points
     • Switches
     • Hosts
     • Routers

4. Error-Detection and - Correction Techniques

   • Error-detection bits
   • Cyclic Redundancy Check (CRC)
   • Parity Checks
   • Checksumming Methods