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278 Glossary of Terms
Term Definition
packets to the appropriate network.
RTS (Length) (Request to Send) A packet sent when a computer has data to transmit. The computer
will wait for a CTS (Clear To Send) message before sending data. The RTS Length value
should remain at its default setting unless you encounter inconsistent data flow. Only
minor modifications to this value are recommended.
SLIP (Serial Line Internet Protocol) SLIP is a standard protocol for connecting to the Internet
with a modem over a phone line. It has trouble with noisy dial-up lines and other error-
prone connections, so look to higher-level protocols like PPP for error correction.
SMTP (Simple Mail Transfer Protocol) A standard protocol that regulates how e-mail is
distributed over the Internet. See also, Protocol.
SNMP (Simple Network Management Protocol) A standard protocol that regulates network
management over the Internet. SNMP uses TCP/IP to communicate with a management
platform, and offers a standard set of commands that make multi-vendor
interoperability possible. SNMP uses a standard set of definitions, known as a MIB
(Management Information Base), which can be supplemented with enterprise-specific
extensions. See also, TCP/IP and MIB.
Socket A communication path between two computer programs, not necessarily running on
the same machine. Sockets are managed by a “socket device driver” that establishes
network connections, as needed. Programs that communicate through sockets need not
know anything about how the network functions.
Solution Provider Vendors are considered to be solution providers when they provide products and/or
services that meet their customer’s specific needs. Normally, a solution provider is
offering a solution that isn’t readily available on the open market. For example,
NOMADIX™ is a solution provider to its customers (broadband network service
providers), and those customers are solution providers to their end users (network
subscribers).
SSID (Service Set Identifier) A 32-character unique identifier attached to the header of
packets sent over a WLAN that acts as a password when a mobile device tries to
connect to the BSS. The SSID differentiates one WLAN from another, so all access points
and all devices attempting to connect to a specific WLAN must use the same SSID. A
device will not be permitted to join the BSS unless it can provide the unique SSID.
Because an SSID can be “sniffed” in plain text from a packet it does not supply any
security to the network. An SSID is also referred to as a “network name” because
essentially it is a name that identifies a wireless network.
SSL (Secure Sockets Layer) A protocol developed by Netscape for transmitting private
documents via the Internet. SSL works by using a private key to encrypt data that is
transferred over the SSL connection. Both Netscape Navigator and Internet Explorer
support SSL, and many Web sites use the protocol to obtain confidential user
information, such as credit card numbers. See also, Protocol.
Static IP Address An IP address that is assigned to a computing device permanently (or until the user
changes it manually), unlike a dynamic IP address which is assigned to a device
temporarily by the DHCP server. See also, DHCP, IP Address and Dynamic IP Address.
STP (Spanning Tree Protocol) A link management protocol that is part of the IEEE 802.1
standard for media access control bridges. Using the spanning tree algorithm, STP
provides path redundancy while preventing undesirable loops in a network that are
created by multiple active paths between stations. Loops occur when there are alternate