Alcatel-Lucent AOS-W 6.5.3.x - Page 1153

1153| Glossary of Terms AOS-W 6.5.3.x| User Guide
TACACS
Terminal Access Controller Access Control System. TACACS is a family of protocols that handles remote
authentication and related services for network access control through a centralized server.
TACACS+
Terminal Access Controller Access Control System+. TACACS+ provides separate authentication,
authorization, and accounting services. It is derived from, but not backward compatible with, TACACS.
TCP
Transmission Control Protocol. TCP is a communication protocol that defines the standards for establishing
and maintaining network connection for applications to exchange data.
TCP/IP
Transmission Control Protocol/ Internet Protocol. TCP/IP is the basic communication language or protocol of
the Internet.
TFTP
Trivial File Transfer Protocol. The TFTP is a software utility for transferring files from or to a remote host.
TIM
Traffic Indication Map. TIM is an information element that advertises if any associated stations have buffered
unicast frames. APs periodically send the TIM within a beacon to identify the stations that are using power
saving mode and the stations that have undelivered data buffered on the AP.
TKIP
Temporal Key Integrity Protocol. A part of the WPA encryption standard for wireless networks. TKIP is the next-
generation Wired Equivalent Privacy (WEP) that provides per-packet key mixing to address the flaws
encountered in the WEP standard.
TLS
Transport Layer Security. TLS is a cryptographic protocol that provides communication security over the
Internet. TLS encrypts the segments of network connections above the Transport Layer by using asymmetric
cryptography for key exchange, symmetric encryption for privacy, and message authentication codes for
message integrity.
TLV
Type-length-value or Tag-Length-Value. TLV is an encoding format. It refers to the type of data being
processed, the length of the value, and the value for the type of data being processed.
ToS
Type of Service. The ToS field is part of the IPv4 header, which specifies datagrams priority and requests a
route for low-delay, high-throughput, or a highly reliable service.
TPC
Transmit Power Control. TPC is a part of the 802.11h amendment. It is used to regulate the power levels used
by 802.11a radio cards.