Atec Agilent-J2300E - Manual (Page 35)

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Real-time Capturing, Filtering and Searching
The Agilent Advisor now offers real-time IP and WAN filtering at rates up to
155Mb/s (up to DS3 for Frame Relay). This allows the user to isolate and
analyze LAN and Frame Relay traffic on an ATM circuit or LAN traffic taking
place on a Frame Relay circuit.
The real time filtering function provides application-level, LAN-centric
troubleshooting on ATM or Frame Relay networks, thus allowing users to
observe specific traffic types that may be causing trouble on the network.
The user can filter by IP source and/or destination address for IP traffic
encapsulated in Frame Relay, and additionally encapsulated in ATM. This
feature maximizes valuable buffer space for optimal data collection of
targeted LAN traffic, since the filtering takes place before data capture.
In addition to capture filtering performed in the hardware, the Agilent
Advisor is able to gather counts of events such as cells or frames that meet the
filtering criteria. More details of these features are given in technology specific
sections in this specification.
Powerful filtering and search functionality allows the user to drill down
further for troubleshooting purposes when post-processing data from a
capture buffer or file. The same graphical user interface is used for pre and
post filtering.
Capture Filters and Counters
Hardware counters and filters allow the user select frames to bring into the
capture buffer. A typical Filters and Counters screen is depicted in figure 18.
The Agilent Advisor will capture every frame, no matter what the traffic level,
and that is exactly what is needed.
Up to 16 hardware data filters can be enabled simultaneously or individually
turned on or off. A flexible and user-friendly menu helps the user define
specific filters, counters, and triggers:
• Up to 16 hardware data filters (both sides of the network)
• Enabled simultaneously or individually
• Flexible, user-friendly menu for protocol specific filter and counter setup
• Several user selectable actions for triggers
• Filter up to 64 bytes into the frame
Filter/Counter Statistics are available in Graphical and statistical view of the
network based on setup filters/counters:
Graph type:
• Bar
• Pie
Mode
• Instantaneous
• Cumulative
Graph
• % of frames
Throughput (frame/s)
Frame Relay (continued)