Professional Access Point
Administrator Guide
Glossary - 309
E
EAP
The
Extensible Authentication Protocol
(EAP) is an authentication protocol that supports multiple methods,
such as token cards, Kerberos, one-time passwords, certificates, public key authentication, and smart
cards.
Variations on EAP include EAP Cisco Wireless (LEAP), Protected EAP (PEAP), EAP-TLS, and EAP
Tunnelled TLS (EAP-TTLS).
EDCF
Enhanced Distribution Control Function
is an extension of
DCF
. EDCF, a component of the IEEE Wireless
Multimedia (WMM) standard, provides prioritized access to the wireless medium
ESS
An
extended service set
(ESS) is an
Infrastructure Mode
Wireless Networking Framework
with multiple
access points, forming a single subnetwork that can support more clients than a basic service set (
BSS
).
Each access point supports a number of wireless stations, providing broader wireless coverage for a large
space, for example, an office.
Ethernet
Ethernet
is a local-area network (
LAN
) architecture supporting data transfer rates of 10 Mbps to 1 Gbps.
The Ethernet specification is the basis for the
IEEE
802.3
standard, which specifies the physical and lower
software layers. It uses the
CSMA/CA
access method to handle simultaneous demands.
Ethernet supports data rates of 10 Mbps,
Fast Ethernet
supports 100 Mbps, and
Gigabit Ethernet
supports
1 Gbps. Its cables are classified as "
X
base
Y
", where
X
is the data rate in Mbps and
Y
is the category of
cabling. The original cable was
10base5
(Thicknet or "Yellow Cable"). Some others are
10base2
(Cheapernet),
10baseT
(Twisted Pair), and
100baseT
(Fast Ethernet). The latter two are commonly
supplied using
CAT5
cabling with
RJ-45
connectors. There is also
1000baseT
(Gigabit Ethernet).
ERP
The
Extended Rate Protocol
refers to the protocol used by
IEEE
802.11g
stations (over 20 Mbps
transmission rates at 2.4GHz) when paired with Orthogonal Frequency Division Multiplexing (OFDM). Built
into ERP and the IEEE
802.11g
standard is a scheme for effective interoperability of IEEE 802.11g stations
with IEEE 802.11b nodes on the same channel.
Legacy IEEE 802.11b devices cannot detect the ERP-OFDM signals used by IEEE 802.11g stations, and
this can result in collisions between data frames from IEEE 802.11b and IEEE 802.11g stations.
If there is a mix of 802.11b and 802.11g nodes on the same channel, the IEEE 802.11g stations detect this
via an ERP flag on the access point and enable
request to send
(
RTS
) and
clear to send
(
CTS
) protection
before sending data.
See also
CSMA/CA
protocol.
Summary of Contents for Instant802 APSDK
Page 1: ...Professional Access Point Administrator Guide R46 1224 00 rev 2 0 07 06...
Page 2: ......
Page 4: ...Professional Access Point Administrator Guide iv...
Page 8: ...Professional Access Point Administrator Guide viii...
Page 42: ...Professional Access Point Administrator Guide Basic Settings 42...
Page 52: ...Professional Access Point Administrator Guide Access Points 52...
Page 58: ...Professional Access Point Administrator Guide User Management 58...
Page 62: ...Professional Access Point Administrator Guide Sessions 62...
Page 70: ...Professional Access Point Administrator Guide Channel Management 70...
Page 88: ...Professional Access Point Administrator Guide Neighboring Access Points 88...
Page 96: ...Professional Access Point Administrator Guide Ethernet Wired Settings 96...
Page 120: ...Professional Access Point Administrator Guide Security 120...
Page 128: ...Professional Access Point Administrator Guide Virtual Wireless Networks 128...
Page 134: ...Professional Access Point Administrator Guide Radio 134...
Page 138: ...Professional Access Point Administrator Guide MAC Filtering 138...
Page 152: ...Professional Access Point Administrator Guide Quality of Service 152...
Page 160: ...Professional Access Point Administrator Guide Wireless Distribution System 160...
Page 164: ...Professional Access Point Administrator Guide Time Protocol 164...
Page 170: ...Professional Access Point Administrator Guide SNMP 170...
Page 290: ...Professional Access Point Administrator Guide Configuration Troubleshooting 290...
Page 298: ...Professional Access Point Administrator Guide Regulatory Information 298...
Page 328: ...Professional Access Point Administrator Guide Index 328...
