Sniffer® Portable Professional User's Guide - NetScout

Monitor Filters
Monitoring Your Network
As a consequence of this support, Sniffer Portable Professional
displays for 802.11a networks will include data rate categories
beyond the 54 Mbps limit claimed by the 802.11a specification. You
will only see frames counted in these categories when monitoring
or capturing from an 802.11a network implementing these
proprietary extensions.
NOTE: Wireless network channels are based on geographical
location and the frequency band allocated in the country.
Sniffer Portable Professional lets you apply filters to the monitor. Monitor
filters affect all standard monitor applications — Dashboard, Host Table,
Matrix, Application Response Time, History Samples, Protocol
Distribution, and Global Statistics.
Using a monitor filter, you can look at your network traffic from several
different views. For example, by defining and applying a hardware
address filter to and from a router, you can easily tally the traffic load to
and from that router. Using the same filter, the Matrix Table will also
show who is talking to the router and how often. If you open the Protocol
Distribution window, it will show the percentage traffic load passing
through the router by protocol types. In addition, the History graph will
plot traffic load at the router over time.
If you want to look at matrix and host table statistics for IP traffic only,
you can define and apply an IP protocol filter. If you want to focus on
other protocol types, for example, IPX or AppleTalk, you can define
filters for those also.
IMPORTANT: For complete description of how to define a filter, see
Defining Filters and Triggers on page 219.
User’s Guide 69