Coyote Point Systems E350GX, Руководство по установке и администрированию

Страница: 325 / 344

Equalizer Installation and Administration Guide 321
Appendix J:
Glossary
active content verification
(ACV) A method for checking a server for valid content. As part of a TCP probe,
Equalizer sends a custom string to the server’s probe port and checks the
response for a specific string. ACV does not support UDP-based services.
administration address The IP address assigned to Equalizer on any VLAN. Access to Equalizer can
be configured for each VLAN.
administration interface The browser-based interface for setting up and managing 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 See link aggregation and 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 of the Open Systems Interconnection (OSI) network model, where
communication between endpoints is defined by the application.
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 master records for a particular domain. See
name server.
back-end server A physical server that is part of a virtual cluster on Equalizer.
backup Equalizer The backup unit in a failover pair of Equalizers. The backup unit constantly
monitors the health of the active (primary) unit, and replaces the primary unit
in the event that the primary becomes unavailable. 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.
broadcast domain
cache An area in which information is temporarily stored.