Figure A3 The station configuration table dotUStation ConfigTable

All entries in the station configuration table start with the prefix dot11smt.dot11StationConfigTable.dot11StationConfigEntry (1.1.1):

dot11StationID (MacAddress)

The bit string in this object is used to identify the station to an external manager. By default, it is assigned the value of the station's globally unique programmed address.

dot11MediumOccupancyLimit (integer, range 0-1,000)

This object has meaning only for stations that implement contention-free access using the point coordination function. It measures the number of continuous time units (TUs) that contention-free access may dominate the medium. By default, it is set to 100 TUs, with a maximum value of 1,000 (1.024 seconds).

Making this value larger increases the capacity allocated to contention-free service. Decreasing it reduces the amount of time available for contention-free service. Network managers can tune this value appropriately once products implementing contention-free service are produced.

dot11CFPollable (TruthValue: a defined type set to 1 for true or 2 for false)

This object reports whether a station can respond to contention-free polling messages. Because the ability to respond to CF-Poll messages is a function of the software installed, this object is read-only.

dot11CFPPeriod (integer, range 0-255)

Contention-free periods always begin on a DTIM message. This object is the number of DTIM intervals between contention-free periods. DTIM messages are always a part of a Beacon frame, so the time between contention-free period starts can be obtained by multiplying the CFP period value in this object by the DTIM interval.

dot11MaxDuration (integer, range 0-65,535)

This object describes the maximum duration of the contention-free period when a new BSS is created. The reason for the difference in the allowed range of values between this object and the dot11MediumOccupancyLimit is a mystery.

dot11AuthenticationResponseTimeout (integer, range 1-4,294,967,295)

At each step of the station authentication process, the station will wait for a timeout period before considering the authentication to have failed. This object contains the number of TUs that each step is allowed to take before failing the authentication.

dot11PrivacyOptionImplemented (TruthValue)

If the station implements WEP, this object will be true (1). By default, it is false (2). It is read-only because a software update to the station is required to implement WEP. This object does not report whether WEP is in use, only whether it is available.

dot11PowerManagementMode (enumerated type)

This object reports whether a station is active (1) or in a powersave (2) mode. When queried by an external manager, it will always return active because a station must be powered up to send the response frame. This object is far more useful for a local management entity, which can poll the object periodically to determine how often a station is active.

dot11DesiredSSID (string, maximum length 32)

During the scan procedure, stations may be configured to look for a particular network, which is identified by its service set ID (SSID). Management entities may set this value to modify the scanning process to preferentially associate with a certain network.

dot11DesiredBSSType (enumerated)

Like the previous object, this object is also used to configure the scanning procedure. By setting this object, a manager can force association with an infrastructure (1) network, an independent (2) BSS, or any (3) BSS.

dot11OperationalRateSet (string, maximum length 126)

Initially, this described the data rate as a number that was the number of 500-kbps increments for the data rate. Recent standardization work is likely to make them simple labels because the range of 1-127 allows only a maximum rate of 63.5 Mbps.

dot11BeaconPeriod (integer, range 1-65,535)

This object contains the length of the Beacon interval, in TUs. Once a BSS has been established with the Beacon interval, the value may be changed. However, it will not take effect until a new BSS is created.

dot11DTIMPeriod (integer, range 1-255)

This object contains the number of Beacon intervals between DTIM transmissions.

dotUAssociationResponseTimeOut (integer, range 1-4,294,967,295)

At each step of the association process, the station will wait for a timeout period before considering the association attempt to have failed. This object contains the number of TUs that each step is allowed to take before failing the association.

dot11DisassociateReason and dot11DeauthenticateReason (integer, range 0-65,535)

This object contains the reason code from the most recently transmitted Disassociation or Deauthentication frame. If no such frame has been transmitted, the value is 0. For a complete list of reason codes, see Chapter 3 or clause 7.3.1.7 of 802.11.

dot11DisassociateStation and dot11DeauthenticateStation (MacAddress)

This object contains the MAC address of the station to which the most recently Disassociation or Deauthentication frame was transmitted. If there is no such frame, the value is 0. By using either of these objects in combination with the corresponding Reason object described previously, a manager can track which station was kicked off the network and why.

dot11AuthenticateFailStatus (integer, range 0-65,535)

This object contains the status code from the most recently transmitted Authentication Failure frame. If no such frame has been transmitted, the value is

0. For a complete list of status codes, see Chapter 3 or clause 7.3.1.9 of 802.11.

dot11AuthenticateFailStation (MacAddress)

This object contains the MAC address of the station to which the most recent Authentication Failure frame was transmitted. If there is no such frame, the value is 0.

Was this article helpful?

0 0
DIY Battery Repair

DIY Battery Repair

You can now recondition your old batteries at home and bring them back to 100 percent of their working condition. This guide will enable you to revive All NiCd batteries regardless of brand and battery volt. It will give you the required information on how to re-energize and revive your NiCd batteries through the RVD process, charging method and charging guidelines.

Get My Free Ebook


Post a comment