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Interpreting Network Tracing

When network tracing is enabled, you can use tracing to capture calls your application makes to various System.Net class members. The output from these calls may be similar to the following examples.

[588]   (4357)   Entering Socket#33574638::Send()
[588]   (4387)   Exiting Socket#33574638::Send()-> 61#61

In the preceding example, [588] is the current thread's unique identifier. (4357) and (4387) are timestamps denoting the number of milliseconds that have elapsed since the application started. The data following the timestamp shows the application entering and exiting the method Socket.Send. The object executing the Send method has 33574638 as its unique identifier. The method exit trace includes the return value (61 in the preceding example).

Network traces can capture network traffic that is sent from or received by your application using application-level protocols such as Hypertext Transfer Protocol (HTTP). This data can be captured as text and, optionally, hexadecimal data. Hexadecimal data is available when you specify includehex as the value of the tracemode attribute. (For detailed information about this attribute, see How to: Configure Network Tracing.) The following example trace was generated using includehex.

[1692] (1142) 00000000 : 47 45 54 20 2F 77 70 61-64 2E 64 61 74 20 48 54 : GET /wpad.dat HT

[1692] (1142) 00000010 : 54 50 2F 31 2E 31 0D 0A-48 6F 73 74 3A 20 69 74 : TP/1.1..Host: it

[1692] (1142) 00000020 : 67 70 72 6F 78 79 0D 0A-43 6F 6E 6E 65 63 74 69 : gproxy..Connecti

[1692] (1142) 00000030 : 6F 6E 3A 20 43 6C 6F 73-65 0D 0A 0D 0A : on: Close....

To omit hexadecimal data, specify protocolonly as the value for the tracemode attribute. The following example shows the trace when protocolonly is specified.

[2444] (594) Data from ConnectStream#33574638::WriteHeaders<<GET /wpad.dat HTTP/1.1

Host: itgproxy

Connection: Close

See Also

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