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Sniffer® Portable Professional User's Guide - NetScout

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Chapter 5<br />

98 Sniffer <strong>Portable</strong> <strong>Professional</strong><br />

Adding Custom Protocols to the ART Display<br />

If your network uses non-standard TCP or UDP ports for different upper<br />

layer protocols, or if you want to add a custom protocol running over TCP<br />

or UDP, you can still get ART analysis (and analysis from all other<br />

Monitor applications, too) by specifying the correct port number for<br />

different upper layer protocols in the Protocols tab of the Options dialog<br />

box (accessed by selecting the Options command from the Tools<br />

menu). Keep in mind, however, that if you do change the port numbers,<br />

you will need to stop and restart collection for your changes to take<br />

effect. You can do this using the Reset command in the File menu. See<br />

Adding Custom Protocols to the ART Display on page 108 for details.<br />

Not Seeing ART Data?<br />

If the ART displays are not populating with data, make sure that Sniffer<br />

<strong>Portable</strong> <strong>Professional</strong> is connected to the network in such a way that it<br />

is seeing both sides of a conversation – requests and responses. For<br />

example, if Sniffer <strong>Portable</strong> <strong>Professional</strong> is connected to a designated<br />

mirror port on a switch, make sure you that you have set up port<br />

mirroring in a way that ensures both inbound and outbound packets are<br />

being sent to the mirror port.<br />

IMPORTANT: Keep in mind that setting up port mirroring in this way<br />

will occasionally cause duplicate packets to appear in the Decode<br />

window.<br />

ART – The Tabular View<br />

The ART application’s Tabular view lists each detected application layer<br />

connection with the addresses of both the server and the client, detailed<br />

statistics for the response times on the connection, and overall traffic<br />

statistics for the connection (server bytes, client octets, retries, and<br />

timeouts).<br />

ART organizes connections by protocol. Each protocol you have enabled<br />

in the Display Protocols tab of the ART Options dialog box (accessed<br />

by clicking the Properties button in the ART window) has its own tab at<br />

the bottom of the ART window. You can view connections using different<br />

protocols by clicking on the appropriate tab at the bottom of the window.<br />

The Tabular View provides the statistics in the following table:

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