Cisco Explorer 4700 Installation Guide Page 622

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Glossary
GL-6
Device Manager Guide, Cisco ACE 4700 Series Application Control Engine Appliance
OL-26645-02
sticky
A feature that ensures that the same client gets the same server for multiple connections. It is used when
applications require a consistent and constant connection to the same server. If you are connecting to
a system that keeps state tables about your connection, sticky allows you to get back to the same real
server again and retain the statefulness of the system.
suspend
Removes an entity from the resource pool for future load-balancing content requests or connections.
Suspending a service or device does not affect existing content flows, but it prevents additional
connections from accessing the suspended entity or content. See also activate.
T
TCP
Transport Control Protocol. Connection-oriented transport layer protocol that provides reliable
full-duplex data transmission. TCP is part of the TCP/IP protocol stack.
threshold
A range in which you expect your network to perform. If a threshold is exceeded or goes below the
expected bounds, you examine the areas for potential problems. You can create thresholds for a specific
device.
traceroute
A diagnostic tool that helps you understand why ping fails or why applications time out. Using it, you
can view each hop (or gateway) on the route to your device and how long each took.
Transport Control
Protocol
See TCP.
U
URI
Uniform Resource Identifier. Type of formatted identifier that encapsulates the name of an Internet
object, and labels it with an identification of the name space, thus producing a member of the universal
set of names in registered name spaces and of addresses referring to registered protocols or name
spaces. [RFC 1630]
user role
A mechanism for granting access to features and functionality to a user account.
V
virtual context
A concept that allows users to partition an ACE appliance into multiple virtual devices. Each virtual
context contains its own set of policies, interfaces, resources, and administrators, allowing
administrators to more efficiently manage system resources and services.
VLAN
Virtual LAN. Group of devices on one or more LANs that are configured (using management software)
so that they can communicate as if they were attached to the same wire, when in fact they are located
on a number of different LAN segments. Because VLANs are based on logical instead of physical
connections, they are extremely flexible.
VLAN Trunking
Protocol
See VTP.
virtual server
A virtual server represents groups of real servers and are associated with a real server farm.
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