User's Manual

Glossary
48 Installation and User Guide: Airgo Wireless LAN Client Adapter
Static IP Address
A permanent IP address assigned to a node in a TCP/IP network.
Subnet
Portion of a network, designated by a particular set of IP addresses. Provides a
hierarchy for addressing in LANs. Also called subnetwork.
Subnet Mask
A TCP/IP addressing method for dividing IP-based networks into subgroups or
subnets (compare with maskbits). Each triplet of digits in an IP address consists of
8 bits. To specify using a subnet mask, indicate the masked bits as an IP address.
To specify the subnet in maskbits, count the number of bits in the prefix. Example:
subnet mask 255.255.255.0 is equivalent to 24 maskbits, which is the total number
of bits in the 255.255.255 prefix.
Temporal Key Integrity Protocol (TKIP)
Part of the IEEE 802.11i encryption standard. TKIP provides improvements
to WEP encryption, including per-packet key mixing, message integrity
check and a re-keying mechanism.
Traffic Class Identifier (TCID)
Part of the standard 802.11 frame header. The 3-bit TCID is used for
mapping to class-of-service values.
Transmission Control Protocol/Internet Protocol (TCP/IP)
One of the most commonly used communication protocols in modern networking.
Addresses used in TCP/IP usually consist of four triplets of digits, plus a subnet
mask (for example, 192.168.25.3, subnet 255.255.255.0).
Transport Layer Security (TLS)
Protocol that provides privacy protection for applications that communicate with
each other and their users on the Internet. TLS is a successor to the Secure Sockets
Layer (SSL).
Trunk
In telecommunications, a communications channel between two switching
systems. In a wireless network, a trunk is a wireless connection from one access
point to another.
Type of Service (ToS)
Sometimes also called IP Precedence, ToS is a system of applying QoS
methodologies, based on headers placed into transmitted IP packets.
User Datagram Protocol (UDP)
A connectionless protocol similar to TCP/IP, but without the same level of error-
checking. UDP is commonly used when some small degree of errors and packet-
loss can be tolerated without losing program integrity, such as for online games.
Virtual LAN (VLAN)
A local area network with a definition that addresses network nodes on some basis
other than physical location or even whether the systems are wired together or
operating using the same local equipment. VLANs are, on average, much easier to
manage than a physically implemented LAN. In other words, moving a user from
one VLAN to another is a simple change in software, whereas on a regular LAN,
the computer or device would need to be connected physically to a different switch