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Basic Advanced TCP/IP Wireless
VT2400/VT2500 Series Voice Gateway User Guide
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TBCP
Tagged Binary Communication Protocol
TCP
Transmission Control Protocol on OSI transport layer four, provides reliable transport over the network
for data transmitted using IP (network layer three). It is an end-to-end protocol defining rules and
procedures for data exchange between hosts on top of connectionless IP. TCP uses a timer to track
outstanding packets, checks error in incoming packets, and retransmits packets if requested.
TCP/IP
The Transmission Control Protocol/Internet Protocol suite provides standards and rules for data
communication between networks on the Internet. It is the worldwide internetworking standard and the
basic communications protocol of the Internet.
Telnet
The Internet standard protocol for remote terminal connection service. Telnet allows a user at one site
to interact with a system at another site as if the user’s terminal were directly connected to the host
computer.
TFTP
Trivial File Transfer Protocol is a very simple protocol used to transfer files.
THDD
Telephony Hardware Device Driver.
TKIP
Temporal Key Integrity Protocol
transparent
bridging
A method to enable all hosts on the wired Ethernet LAN, WLAN, and USB connection to communicate
as if they were all connected to the same physical network.
transport layer
Layer of the OSI concerned with protocols for error recognition and recovery. This layer also regulates
information flow.
trunk
Electronic path over which date is transmitted.
TTL
The time to live is the number of routers (or hops) a packet can traverse before being discarded. When
a router processes a packet, it decreases the TTL by 1. When the TTL reaches zero, the packet is
discarded.
tunnel
To place packets inside other packets to send over a network. The protocol of the enclosing packet is
understood by each endpoint, or tunnel interface, where the packet enters and exits the network.
VPNs rely on tunneling to create a secure network.
Tunneling requires the following protocol types:
•
A carrier protocol, such as TCP, used by the network over which the data travels
•
An encapsulating protocol, such as IPSec, L2F, L2TP, or PPTP, that is wrapped around the original
data
•
A passenger protocol, such as IP, for the original data
two-way
A cable system that can transmit signals in both directions to and from the headend and the
subscriber.