Nomadix Universal subscriber gateway User Manual page 246

Subnet Mask
See Subnet Address.
Subscriber
Any person or organization that pays a period fee for services.
SYSLOG
(SYStem LOGging) Syslog is the standard event logging subsystem for Unix and consists of a server
daemon, a client function library, and a client command line utility. You can log to files, terminal devices,
logged on users, or even forward to other syslog systems. See also, Daemon.
T-1 Carrier
A dedicated phone connection supporting data rates of 1.544 Mbps. A T-1 line actually consists of 24
individual channels, each of which supports 64 Kbps. Each 64 Kbps channel can be configured to carry
voice or data traffic. Most telephone companies allow you to buy just some of these individual channels,
known as fractional T-1 access. T-1 lines are a popular leased line option for businesses connecting to the
Internet and for Internet Service Providers (ISPs) connecting to the Internet backbone.
T-3 Carrier
A dedicated phone connection supporting data rates of about 43 Mbps. A T-3 line actually consists of 672
individual channels, each of which supports 64 Kbps. T-3 lines are used mainly by Internet Service
Providers (ISPs) connecting to the Internet backbone and for the backbone itself.
Tag
A code inserted into a file or data structure indicating how something is to be interpreted. The USG
supports VLANs which use tagging to assign ports. Many pieces of software use tags of various kinds for
various purposes. HTML commands are often called "tags." See also,
TCP
(Transmission Control Protocol) Manages data into small packets and ensures that the data is transmitted
correctly over a network. If an error is detected, the data is transmitted again in its original form. See also,
TCP/IP.
TCP/IP
(Transmission Control Protocol/Internet Protocol). A suite of protocols that regulates data communications
for the Internet. See also,
Telnet
A software program and command utility used to connect between remote locations and services. Telnet
connects you to the login prompt of another host (that you have access rights to). See also, Host.
Throughput
The net data transfer rate between an information source and its destination, using the maximum packet
size without loss. Throughput is expressed as Megabits per second (Mbps). At the time of this writing, the
specific rate for "throughput" for the Universal Subscriber Gateway is 39 Mbps, as defined by RFC1242,
Section 3.17. See also, Forwarding
Translation
See IP Address Translation.
242
Internet Protocol, Protocol, and TCP.
Rate, Mbps, Packet,
U S
NIVERSAL UBSCRIBER
VLAN and HTML.
Packet Switching Network, pps, and RFC.
Glossary of Terms
G ™
ATEWAY