Chapter 15. Troubleshooting the Network Layer

The network layer handles all the software addresses of hosts. It is responsible for making sure that packets get to the destinations for which they are intended for. These addresses can be IP, AppleTalk, IPX, or any number of other networking protocol addresses. The specific protocol that will be covered in this chapter is TCP/IP, because it is the most widely used protocol for corporate and Internet applications.

This chapter will cover troubleshooting of the network layer of the Open Systems Interconnection (OSI) model. This chapter is meant only as a guideline for troubleshooting of the network layer in general. Although specific examples are given using the Ethernet and Frame Relay data link ...

Get Cisco® Router Configuration & Troubleshooting, Second Edition now with the O’Reilly learning platform.

O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.