Information Technology Reference
In-Depth Information
Figure8-1
NetWare and the OSI Reference Model
OSI reference model
NetWare
7
Application
Applications
RPC-
based
application
NetWare
Core
Protocol
(NCP)
6
Presentation
LU 62
support
NetWare
shell
(client)
NetBIOS
emulator
5
Session
RPC
SPX
4
Transport
IPX
3
Network
2
Data link
Token
Ring/
IEEE
802.5
Ethernet/
IEEE
802.3
FDDI
ARCnet
PPP
1
Physical
Media Access
NetWare runs on Ethernet/IEEE 802.3, Token Ring/IEEE 802.5, Fiber Distributed Data Interface
(FDDI), Copper Distributed Data Interface (CDDI), and ARCnet. NetWare also works over synchronous
wide-area network (WAN) links using the Point-to-Point Protocol (PPP).
The Network Layer
Internetwork Packet Exchange (IPX) is Novell's original network layer protocol. When a device to be
communicated with is located on a different network, IPX routes the information to the destination
through any intermediate networks. Figure 8-2 shows the IPX packet format.