Mastering Intranet and Internet Technology
LANs vs WANs
LAN Basis
A LAN provides a high speed transmission communications system required to support current applications and users.
LAN Protocols
Consider
The OSI Reference Model
in the Appendix.
The Physical Connection
Ethernet
Token Ring
The Logical Connection
IPX
IP
NetBIOS/NetBEUI
Services, Control & Accounting
WAN Protocols
HDLC/SDLC
ISDN
X.25
Frame Relay
ATM
RS-232
WAN Transmission Speeds
1,200 b/S
2,400 b/S
4,800 b/S
9,600 b/S
14,400 b/S
19,200 b/S
28,800 b/S
33,600 b/S
56 Kb/S
64 Kb/S
n * 64 Kb/S
1.54 Mb/S (T1)
2.048 Mb/S (E1)
8 Mb/s
34 Mb/S
140 Mb/s
155.52 Mb/S
2
n
* 155.52 Mb/S (current max 2.5 Gb/S)
New Systems
Web Author: Geoff May
Last Update: 21/08/2000
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