Protocols and Packets
Applying what you have learned to real-world troubleshooting is important for the successful support person. Starting with Table 4-3, I compare some of the protocols, applications, and utilities at each layer of Novell's IPX/SPX stack to the TCP/IP suite to assist you with supporting day-to-day internetworks.
| Layer | ISO's OSI Model | DoD TCP/IP Suite | Novell IPX/SPX Stack |
|---|---|---|---|
| 7 | Application | Application | Applications
NetBIOS NCP[*] SAP[*] RIP NLSP[*] |
| 6 | Presentation | ||
| 5 | Session | ||
| 4 | Transport | Transport Host-to-Host | SPX |
| 3 | Network | Internet | IPX |
| 2 | Data Link | Data Link | Various LAN/WAN technologies such as Ethernet, Token Ring, FDDI, Frame Relay, HDLC, PPP |
| 1 | Physical | Physical |
[*] NCP = NetWare Core Protocol
[*] SAP ...
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