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P
OINTS
Changing the Maximum Transmit Threshold
The maximum
transmission threshold specifies the number of milliseconds a frame
scheduled to be transmitted
by a radio can remain in buffer memory. To
change the maximum transmit lifetime, use the following command:
set radio-profile
name
max-tx-lifetime
time
The time can be from 500 ms (0.5 second) through 250,000 ms
(250 seconds). The default is 2000 ms (2 seconds).
To change the maximum transmit threshold for radio profile
rp1
to
4000 ms, type the following command:
WX1200#
set radio-profile rp1 max-tx-lifetime 4000
success: change accepted.
Changing the Preamble Length
By default, 802.11b/g radios
advertise support for frames with short preambles and can support
frames with short or long preambles.
An 802.11b/g radio generates unicast frames to send to a client with the
preamble length specified by the client. An 802.11b/g radio always uses a
long preamble in beacons, probe responses, and other broadcast or
multicast traffic.
Generally, clients assume access points require long preambles and
request to use short preambles only if the access point with which they
are associated advertises support for short preambles. You can disable
the advertisement of support for short preambles by setting the preamble
length value to
long
. In this case, clients assume that the access point
supports long preambles only and the clients request long preambles.
Changing the preamble length value affects only the support advertised
by the radio. Regardless of the preamble length setting (
short
or
long
),
an 802.11b/g radio accepts and can generate 802.11b/g frames with
either short or long preambles.
If any client associated with an 802.11b/g radio uses long preambles for
unicast traffic, the MAP still accepts frames with short preambles but
does not transmit any frames with short preambles. This change also
occurs if the access point overhears a beacon from an 802.11b/g radio on
another access point that indicates the radio has clients that require long
preambles.
Содержание 3CRWX120695A
Страница 138: ...138 CHAPTER 6 CONFIGURING AND MANAGING IP INTERFACES AND SERVICES ...
Страница 272: ...272 CHAPTER 11 CONFIGURING RF LOAD BALANCING FOR MAPS ...
Страница 310: ...310 CHAPTER 13 CONFIGURING USER ENCRYPTION ...
Страница 322: ...322 CHAPTER 14 CONFIGURING RF AUTO TUNING ...
Страница 350: ...350 CHAPTER 16 CONFIGURING QUALITY OF SERVICE ...
Страница 368: ...368 CHAPTER 17 CONFIGURING AND MANAGING SPANNING TREE PROTOCOL ...
Страница 412: ...412 CHAPTER 19 CONFIGURING AND MANAGING SECURITY ACLS ...
Страница 518: ...518 CHAPTER 21 CONFIGURING AAA FOR NETWORK USERS ...
Страница 530: ...530 CHAPTER 22 CONFIGURING COMMUNICATION WITH RADIUS ...
Страница 542: ...542 CHAPTER 23 MANAGING 802 1X ON THE WX SWITCH ...
Страница 598: ...598 CHAPTER 26 ROGUE DETECTION AND COUNTERMEASURES ...
Страница 706: ...706 GLOSSARY ...