Part III: Layer I + IIMedium Access and Logical Link LayerChapter 6. Introduction to the Data-Link LayerChapter 7. The Serial-Line Internet Protocol (SLIP)Chapter 8. The Point-to-Point Protocol (PPP)Chapter 9. PPP over EthernetChapter 10. Asynchronous Transfer ModeATMChapter 11. Bluetooth in LinuxChapter 12. Transparent Bridges