Agilent Technologies 622Vu Advisor, User Manual

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PMD
See Physical Media Dependent sublayer.
PNNI
Private Network-to-Network Interface. A switch-to-switch signalling protocol. 622Vu
Advisor lets you identify specific VCCs that should always be interpreted (i.e., decoded) as
using PNNI signalling or routing, as detailed under Specifying Decode Preferences on page
100.
point-to-multipoint connection
Collection of associated ATM virtual channel (VC) or virtual
path (VP) links that associate endpoint nodes through a simple tree topology, and that have the
following characteristics:
•
A single root link serves as the root. When this root node sends information, all other
nodes on the connection (known as leaf nodes) receive copies of the information.
•
The current implementation of the signalling specification only supports zero return
bandwidth (i.e., from the leaf nodes to the root node).
•
The leaf nodes can’t communicate with each other directly, but can be connected via a
distributed implementation.
The current release does not support point-to-multipoint connection.
point-to-point connection
Collection of associated ATM virtual channel (VC) or virtual path
(VP) links that connect two endpoints. The current version of the ATM Forum signalling
specification supports point-to-point virtual channel (VC) connections.
private UNI
User-Network Interface between terminal or endpoint equipment and a private
network.
profile
See user profile.
property
See cell property.
provider network
Any of several public networks that link ATM users together. Local users
typically connect to their regional ATM provider network (possibly passing through one or
more private ATM networks first). The regional provider networks connect to a higher level
(e.g., national) provider network, and so forth. Communications between two provider
networks are facilitated through a network-to-network interface (NNI). Communications
between a provider network and a user’s equipment (gateway, router, host, etc.) are facilitated
through a user-network interface (UNI).
PTI Payload Type Indicator. Same as Payload Type.
public UNI
User-Network Interface between terminal or endpoint equipment and a public
network.
Q.2931 [29]
The broadband signalling protocol standards that are currently under development to
support ATM connections at the user-network interface. These standards have been
supplemented where necessary to support capabilities identified by the ATM Forum as
important for early deployment and interoperability of ATM equipment (primarily to support
point-to-multipoint connections, additional traffic descriptors, and private network
addressing).
QoSMeter test session
Analysis tool designed to test the quality of service on a particular
virtual circuit. Using QoSMeter, you first define the set of tests you want to run. Each set of
tests comprises a session. The tests in a session are identical, and are defined in terms of the
amount of data to send (test size), the percent of bandwidth to use when transmitting the test,
and the percent of bandwidth committed to background traffic.
Next you run the session, transmitting test traffic from your analysis device, across a virtual
circuit, then back to the same (or another) analysis device. You (or another user) can monitor
the test traffic as it’s received.
A: Glossary
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