Agilent Technologies 622Vu Advisor, Руководство пользователя, Страница: 40 / 244

2.2 Specific Capabilities
622Vu lets you:
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Configure analysis devices.
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Monitor physical ATM ports while they send/receive traffic, allowing you to
observe the characteristics of the physical interface to ATM devices.
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Capture and examine traffic as it enters the analysis device. You can capture
all traffic or only selected traffic, as controlled by 622Vu’s optional filtering
capability. This filtering capability allows you to restrict the capture to only
certain types of cells or specific paths, and/or to restrict the amount of
memory used to store captured cells. 622Vu offers a variety of filtering
capabilities, including real-time filtering by IP address, VCC, and/or
protocol.
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Manipulate files of captured cells: to create subsets of the cells and/or PDUs,
to locate specific information within the captured traffic, to generate scripts
(groups of cells) to send out over the network for further analysis, and so
forth.
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Save captured traffic (or a subset of a particular capture). If you save a
capture file, you can then export it in any of several formats: full textual
decode, the standard 622Vu format, or Network Associates Sniffer format.
•
Send out scripts (available only in end-station mode), where each script
comprises a predefined, specific pattern of ATM traffic (transmit sequences
and timed pauses).
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Generate ping messages to verify connectivity to remote end stations through
an ATM network.
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Send data over a particular virtual circuit (available only in end-station
mode), to test the quality of service over that VCC. This is known as
QoSMeter testing, and emphasizes analysis of variations in cell delay and
latency of data transmission.
•
Monitor real-time statistics for the link attached to an analysis device
(available any time, unless you’re actively capturing traffic). At your
request, 622Vu displays the active network connections on the link,
providing statistics in a tabular fashion so you can track bandwidth use (and
error counts) easily. It also offers a graphing capability, so you can lay out
the statistics in graphical form. If you notice a problem while monitoring the
statistics, you can begin capturing any particular VCC(s).
2: Introduction
2.2 Specific Capabilities
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