Specifications

Equalizer Installation and Administration Guide 201
Glossary
This glossary defines some of the key terms used in this document. Some of the glossary definitions
are based on RFC1208, “A Glossary of Networking Terms.”
1
active content verification
(ACV)
Active Content Verification; an Equalizer mechanism for checking the validity of
a server. ACV does not support UDP-based services.
administration address The IP address assigned to Equalizer on the internal network. See internal
network and IP address.
administration interface The browser-based interface for setting up and managing the operation of
Equalizer.
address translation The modification of external addresses to standardized network addresses and
of standardized network addresses to external addresses.
agent An application that gathers or processes information for a larger application.
See server agent.
aggregation A summary of all the data that is computed from detailed information. See
sticky network aggregation.
alias A nickname that replaces a long name or one that is difficult to remember or
spell. See IP alias.
aliased IP address A nickname for an IP address. See IP alias.
algorithm Instructions, procedures, or formulas used to solve a problem.
application layer Layer 7 (L7); the highest layer of standards in the Open Systems
Interconnection (OSI) model (according to The MIcrosoft Press Computer
Dictionary), which helps a user perform work such as transferring files,
formatting e-mail messages, and accessing remote computers.
atom The smallest part of a regular expression in Equalizer. See branch, piece, and
regular expression.
authoritative name server A name server that maintains the complete information for a particular part of
the domain name space. See name server.
back-end server A physical server on the internal network that receives connection requests
from Equalizer.
backup Equalizer The backup unit, which replaces the primary Equalizer if that Equalizer fails.
See hot backup and primary Equalizer.
bound A character that represents the limit of part of a regular expression.
bracket expression In a regular expression, a list of characters enclosed in brackets ( [...] ).
branch In an Equalizer regular expression, a complete piece of a regular expression.
You can concatenate and/or match branches. See atom, piece, and regular
expression.
cache An area in which information is temporarily stored.