User guide

5-19
Cisco WLAN Controller Web Interface User Guide
OL-7416-04
Chapter 5 Wireless Menu Bar Selection
802.11a AP Interfaces > Details
Fragmentation
Threshold
The current maximum size, in octets, of the MPDU that may be delivered
to the PHY. An MSDU shall be broken into fragments if its size exceeds the
value of this attribute after adding MAC headers and trailers. An MSDU or
MMPDU shall be fragmented when the resulting frame has an individual
address in the Address1 field, and the length of the frame is larger than this
threshold. The default value for this attribute shall be the lesser of 2346 or
the aMPDUMaxLength of the attached PHY and shall never exceed the
lesser of 2346 or the aMPDUMaxLength of the attached PHY. The value of
this attribute shall never be less than 256.
Max. Tx MSDU Lifetime The elapsed time in TU, after the initial transmission of an MSDU, after
which further attempts to transmit the MSDU shall be terminated. The
default value of this attribute is 512.
Max. Rx Life Time The MaxReceiveLifetime shall be the elapsed time in TU, after the initial
reception of a fragmented MMPDU or MSDU, after which further attempts
to reassemble the MMPDU or MSDU shall be terminated. The default
value is 512.
Ta b l e 5 - 2 1 T x P o w e r
Parameter Description
# Supported Power
Levels
Five or fewer power levels, depending on operator preference.
Tx Power Level
(1, highest, through 5,
lowest)
The transmit power level of the access point: 1 = Maximum power allowed
per Country Code setting, 2 = 50% power, 3 = 25% power, 4 = 6.25 to
12.5% power, and 5 = 0.195 to 6.25% power.
Note The power levels and available channels are defined by the Country
Code setting, and are regulated on a country by country basis.
Tx Power Configuration Globally controlled or Customized for this access point.
Current Tx Power Level Displays the operating transmit power level from the transmit power table.
Table 5-22 Physical Channel Parameters
Parameter Description
Current Channel Current operating frequency channel.
Configuration Locally customized or globally controlled.
Table 5-20 MAC Operation Parameters (continued)
Parameter Description