Glossary
G
gateway
A network route that typically translates information between two different protocols.
geographic cluster
A collection of servers (such as Web sites) that provide a common service over different physical locations. See cluster.
geographic load balancing
Distributing requests as equally as possible across servers in different physical locations. See load balancing. See also intelligent
load balancing.
geographic probe
A query sent to a site in a geographic cluster to gather information so Equalizer can determine the site that is best able to process a
pending request. See geographic cluster.
H
header
One or more lines of data that identify the beginning of a block of information or a file.
hot backup
Configuring a second Equalizer as a backup unit that will take over in case of failure. Also known as a hot spare. See backup Equal-
izer. See also primary Equalizer. A server can also be used as a hot backup, or hot spare, within a cluster. If all the other servers in
the cluster fail, the hot spare will begin processing requests for the cluster.
HTTP
HyperText Transfer Protocol; the protocol with which a computer or user access information on the World Wide Web.
HTTPS
HyperText Transfer Protocol (Secure). The SSL/TLS protocol is used in combination with the HTTP protocol to provide secure
identification and data encryption.
hub
A device that joins all the components attached to a network.
I
ICMP
Internet Control Message Protocol. Used by operating systems of networked computers to send error messages indicating that a
requested service is not available or that a host or router could not be reached.
ICMP echo request
The act of repeating a stream of characters (for example, echoing on the computer screen characters as a user types those char-
acters). See ping. See also echo.
ICMP Probe Maximum Tries
Enables probing servers using ICMP echo (ping) probes. These probes are 5 seconds apart. If a server does not respond to an
ICMP prebend it has attempted to probe the number of times specified, it is marked down only if there are no other probes (TCP,
ACV, or server agent) active for the cluster.
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Copyright © 2014 Coyote Point Systems, A Subsidiary of Fortinet, Inc.
Summary of Contents for Equalizer GX Series
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