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G-3000H User’s Guide
32
Chapter 1 Getting to Know Your ZyAIR
The 802.11b data rate and corresponding modulation techniques are shown in the table below.
The modulation technique defines how bits are encoded onto radio waves.
802.11g Wireless LAN Standard
The ZyAIR, complies with the 802.11g wireless standard and is also fully compatible with the
802.11b standard. This means an 802.11b radio card can interface directly with an 802.11g
device (and vice versa) at 11 Mbps or lower depending on range. 802.11g has several
intermediate rate steps between the maximum and minimum data rates. The 802.11g data rate
and modulation are as follows:.
Note:
The ZyAIR may be prone to RF (Radio Frequency) interference from other 2.4
GHz devices such as microwave ovens, wireless phones, Bluetooth enabled devices,
and other wireless LANs.
STP (Spanning Tree Protocol) / RSTP (Rapid STP)
(R)STP detects and breaks network loops and provides backup links between switches,
bridges or routers. It allows a bridge to interact with other (R)STP-compliant bridges in your
network to ensure that only one path exists between any two stations on the network.
WMM QoS
WMM (Wi-Fi MultiMedia) QoS (Quality of Service) allows you to prioritize wireless traffic
according to the delivery requirements of the individual and applications.
Certificates
The ZyAIR can use certificates (also called digital IDs) to authenticate users. Certificates are
based on public-private key pairs. Certificates provide a way to exchange public keys for use
in authentication.
Table 1
IEEE 802.11b
DATA RATE (MBPS)
MODULATION
1
DBPSK (Differential Binary Phase Shifted Keying)
2
DQPSK (Differential Quadrature Phase Shifted Keying
)
5.5 / 11
CCK (Complementary Code Keying)
Table 2
IEEE 802.11g
DATA RATE (MBPS)
MODULATION
6/9/12/18/24/36/48/54
OFDM (Orthogonal Frequency Division Multiplexing)
Summary of Contents for ZyAIR G-3000H
Page 1: ...G 3000H 802 11g Wireless Access Point User s Guide Version 3 50 1 2006 ...
Page 22: ...G 3000H User s Guide 22 List of Figures ...
Page 26: ...G 3000H User s Guide 26 List of Tables ...
Page 114: ...G 3000H User s Guide 114 Chapter 9 VLAN ...
Page 134: ...G 3000H User s Guide 134 Chapter 11 Certificates ...
Page 164: ...G 3000H User s Guide 164 Chapter 15 Introducing the SMT ...
Page 180: ...G 3000H User s Guide 180 Chapter 17 LAN Setup ...
Page 218: ...G 3000H User s Guide 218 Chapter 24 System Maintenance and Information ...
Page 224: ...G 3000H User s Guide 224 Appendix C Power over Ethernet PoE Specifications ...
Page 226: ...G 3000H User s Guide 226 Appendix D Brute Force Password Guessing Protection ...
Page 238: ...G 3000H User s Guide 238 Appendix E Setting up Your Computer s IP Address ...
Page 242: ...G 3000H User s Guide 242 Appendix F IP Address Assignment Conflicts ...
Page 254: ...G 3000H User s Guide 254 Appendix G Wireless LANs ...
Page 262: ...G 3000H User s Guide 262 Appendix H IP Subnetting ...
Page 264: ...G 3000H User s Guide 264 Appendix I Command Interpreter ...
Page 268: ...G 3000H User s Guide 268 Appendix J Log Descriptions ...
Page 272: ...G 3000H User s Guide 272 Appendix L Power Adaptor Specifications ...
Page 280: ...G 3000H User s Guide 280 Appendix M Text File Based Auto Configuration ...
Page 294: ...G 3000H User s Guide 294 Appendix N Wireless LAN Manager ...
Page 299: ...G 3000H User s Guide Index 299 ZyNOS F W Version 196 zyxel prowireless mib 287 ...