Summary

The Internet has a long history, which has culminated in a very robust protocol suite. With the advent of IPS protocols, storage network administrators now can leverage that robust protocol suite. An in-depth analysis of IP and ICMP is provided in this chapter to enable storage network administrators to understand the network layer functionality that underlies all IPS protocols. FC does not inherently provide any network layer functionality, so this chapter does not discuss FC. Chapter 7, "OSI Transport Layer," builds upon this chapter by exploring the transport layer functionality of TCP and UDP. Chapter 7 also explores the transport layer functionality of FC.