Sniffer® Portable Professional User's Guide - NetScout

Chapter 10
Setting Filter Options in the 802.11 Tab
238 Sniffer Portable Professional
When working with a wireless adapter, you can use the options in the
802.11 tab (Figure 10-7) to filter on a variety of different types of
wireless traffic, as summarized below.
Figure 10-7. Define Filter > 802.11 Tab
Traffic Type Filters
Interference can occur in wireless networks when multiple access points
within a range of each other are broadcasting on the same or
overlapping channels. The impact of this interference on network
performance can intensify during busy times when a large amount of
data and media traffic compete for bandwidth.
Use the Traffic Type options to detect packets on a channel to which
they do or do not belong:
Valid packets are packets which belong on the specified
channel(s).
Invalid packets are packets which do not belong on the specified
channel(s).
Indeterministic packets are packets which Sniffer Portable
Professional cannot determine whether are valid or invalid.