User's Manual

InfiNet Wireless R5000 Technical User Manual
Copyright © 2004-2006 by InfiNet Wireless Limited.
39
muffer stat clear
Other modes of muffer
The muffer also has the following modes:
• mac mode. Compared to the mac2 mode this mode does not take link-
level ACK messages sent by protocol support devices into account
• mynet mode performs the radio testing without disturbing radio
module's normal operation, but taking into account only packets from
within the given network
• sid mode. The sid regime allows estimating the number of currently
operating subscriber groups having different identifiers (SID), and the
efficiency of air links utilization. The analysis is carried out for all network
identifiers at the frequency previously specified for the radio module by
rfconfig command.
RMA Test
RMA test modes are used for estimating the quality of the established link.
Compared to the muffer mode these modes are not passive and involve
transmitting packets to the radio media.
Manual testing
Manual test of a link to a subscriber unit or base station with specified MAC-
address. Any device can be tested in this mode, and testing results can be seen
on the console and on the front panel LED indicators.
The output in this mode in presented in the picture below.
This mode can be very useful when run of one of the ends of a wireless link
whereas the antenna alignment procedure and/or configuration manipulations
are carried out on the other end of the link. Thus, having mobile phone handy or
other communicating devices you can set up the link for the best performance.
Varying the packet length and the test mode (unicast/multicast) you can obtain
the required link quality for the specific subscriber unit. In unicast mode (default
mode) one should obtain zero values for LostIn and LostOut parameters even
when the packet length is long (e.g. 1400 bytes). For multicast mode the
threshold value below which the link can be defined as satisfactory is
approximately 20% of lost packets.