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Beacon Interval
Beacon frames are transmitted by an access point at regular intervals to
announce the existence of the wireless network. The default behavior is to
send a beacon frame once every 100 milliseconds (or 10 per second).
The Beacon Interval value is set in milliseconds. Type a value from 20 to
2000.
DTIM Period
The
Delivery Traffic Information Map (DTIM) message is an element included
in some Beacon frames. It indicates which client stations, currently sleeping
in low-power mode, have data buffered on the access point awaiting pick-up.
The DTIM period you specify here indicates how often the clients served by
this access point should check for buffered data still on the AP awaiting
pickup.
The measurement is in beacons. For example, if you set this to “1” clients
will check for buffered data on the AP at every beacon. If you set this to “2”,
clients will check on every other beacon. If you set this to 10, clients will check
on every 10th beacon.
Fragmentation
Threshold
Specify a number between 256 and 2,346 to set the frame size threshold
in bytes.
The
fragmentation threshold is a way of limiting the size of packets (frames)
transmitted over the network. If a packet exceeds the fragmentation threshold
set here, the fragmentation function will be activated and the packet will be
sent as multiple 802.11 frames.
If the packet being transmitted is equal to or less than the threshold,
fragmentation will not be used.
Setting the threshold to the largest value (2,346 bytes) effectively disables
fragmentation.
Fragmentation involves more overhead both because of the extra work of
dividing up and reassembling of frames it requires, and because it increases
message traffic on the network. However, fragmentation can help improve
network performance and reliability if correctly configured.
Sending smaller frames (by using lower fragmentation threshold) may help
with some interference problems, such as with microwave ovens.
By default, fragmentation is off. We recommend not using fragmentation
unless you suspect radio interference. The additional headers applied to
each fragment increase the overhead on the network and can greatly reduce
throughput.
Field
Description
Summary of Contents for 7001 Series
Page 1: ...User Guide Gateway 7001 Series Access Point ...
Page 19: ...14 www gateway com ...
Page 30: ...25 www gateway com Type the user name and password and click OK ...
Page 39: ...34 www gateway com Setting configuration policy for new access points ...
Page 59: ...54 www gateway com ...
Page 71: ...66 www gateway com ...
Page 175: ...170 www gateway com ...
Page 176: ...Chapter 9 171 Troubleshooting and Getting Help Known problems Technical support ...
Page 179: ...174 www gateway com ...
Page 180: ...Appendix A 175 Glossary ...
Page 201: ...196 www gateway com ...
Page 202: ...Appendix B 197 Specifications ...
Page 206: ...Appendix C 201 Safety Regulatory and Legal Information ...
Page 213: ...208 www gateway com ...