Glossary
protocol
A set of rules that govern adherence to a set of standards. See protocol stack.
protocol stack
A layer of protocols that process network actions cooperatively and in tandem. See protocol.
proxy server
A utility, which is part of a firewall, that helps the regular tasks of managing data transmittal from a network to the Internet and from
the Internet to the network. See also firewall.
Q
quiesce
Quiesce is a server option that, when enabled, tells Equalizer not to send the server any new traffic, while existing connections are
allowed to complete. Eventually, the server should not be serving any traffic. Sometimes called ‘server draining’.
R
RADIUS
Remote Authentication Dial-In User Service; a protocol that authorizes and authenticates a user trying to link to a network or the
Internet.
receive timeout
This is the failover timeout (in ms) for receiving peer data.
redirection
The process of receiving input from or sending output to a different resource than usual.
regular expression (RE)
One or more non-empty branches, separated by pipe symbols (|). An expression matches anything that matches one of the
branches. See atom, branch and piece.
request packet
A packet that contains information that requests a response. See packet and response packet.
reserved network
A network consisting of “phony” IP addresses, which are not registered and cannot be made visible outside of the internal network.
resolution
The process of interpreting all the messages between an IP address and a domain name address.
Responder
This is an L7 advanced feature. A user can configure Equalizer to send a response directly to the client under specified cir-
cumstances. Without involving a server. Responders come in two flavors. "Sorry"
response load balancing
Dispatches the highest percentage of requests to the server with the shortest response time. Equalizer does this carefully: if Equal-
izer sends too many requests to a server, the result can be an overloaded server with slower response time. The fastest response
policy optimizes the cluster-wide response time. The fastest response policy also checks the number of active connections and
server agent values (if configured); but both of these have less of an influence than they do under the adaptive load balancing
policy. For example, if a server’s active connection count and server agent values are high, Equalizer might not dispatch new
requests to that server even if that server’s response time is the fastest in the cluster.
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