User`s guide

Chapter 3 ZyXEL Utility - Mac OS X
N220 User’s Guide
44
Frames
Failed to
Receive ACK
After All
Retries
This displays the number of frames transmitted by the N220 that did
not receive an acknowledgement response from the other wireless
device.
RTS Frames
Successfully
Received
CTS
This displays the number of frames, large enough to require the sending
of a “Request to Send” message, that then received a “Clear to Send”
message from the other wireless device.
RTS Frames
Failed to
Receive CTS
This displays the number of frames, large enough to require the sending
of a “Request to Send” message, that did not receive a “Clear to Send”
message from the other wireless device.
Receive
Statistics
This section displays statistics about the data frames received by the
N220.
Frames
Received
Successfully
This displays the number of frames received by the N220 without error.
Frames
Received
with CRC
Error
This displays the number of frames received by the N220 that contained
a Cyclic Redundancy Check error. Cyclic Redundancy Checks are used to
determine whether received data has been altered in transit (by radio
interference, for example).
Frames
Dropped
Due To Out-
of-Resource
This displays the number of frames that were not processed because
the N220 did not have the necessary memory.
Duplicate
Frames
Received
This shows the number of received frames that were identical to other
received frames.
RESET
COUNTERS
Click this to turn all the counters back to zero.
Table 9 ZyXEL Utility: Statistics (continued)
LABEL DESCRIPTION