Huawei espace 7810 Administrator's Manual page 160

Huawei IP Phone eSpace
7810&7820&7830&7850&7870&7803X
Administrator Guide
Figure 5-27 Filtering packets (2)
2.
Issue 01 (2011-12-31)
This filtering method is simple. In addition to the Packet List window, you can use the
similar method on the Packet Details window.
Decoding
Generally, the Wireshark uses the port number to parse application layer protocols. If
applications do not use standard port numbers or default port numbers of application
layer protocols, the Wireshark cannot parse the application layer protocols. Instead, it
can parse only transport layer protocols (TCP or UDP).
For example, the Web application using HTTP uses port 80 as the default port number. If
an application uses port 80, the application layer HTTP in the captured packets is parsed
by the Wireshark. Otherwise, TCP in the packets is parsed.
The default port of the application that uses RTSP for communication is port 554;
therefore; the packets containing port 554 are RSTP packets, as shown in .
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