Alvarion BreezeACCESS VL 5.4, Системное руководство

Страница: 83 / 157

Operation and Administration
5-23
NOTE:
There is no aging algorithm for associated SUs. An SU is only removed from the list of
associated SUs under the following conditions:
a. A SNAP frame is received from another AU indicating that the SU is now associated with
the other AU.
b. The SU failed to respond to a certain number of consecutive frames transmitted by the
AU and is considered to have "aged out".
™
The aging time specified for entries in these tables. The aging time
for Bridging Info is as specified by the
Bridge Aging Time
parameter. The default is 300 seconds. There is no aging time for
Association Info entries.
™ The maximum number of entries permitted for these tables, which
are
1019 for Bridging Info and as specified by the Maximum
Number of Associations parameter for Association Info. The default
value of the Maximum Number of Associations parameter is 512 .
♦
Display Association Info: Displays information regarding the
Subscriber Units associated with the AU. Each list entry includes the
following information
:
™
The MAC Address of the associated Subscriber Unit
™
The value configured for the Maximum Data Rate parameter of the
Subscriber Unit
™
The Status of the Subscriber Unit. There are three options:
a.
Associated
b. Authenticated
c. Not Authenticated (a temporary status)
Message Direction Status in AU
SU Status: Scanning
A Beacon with correct ESSID
AU
→
SU
-
SU Status: Synchronized
Authentication Request
SU
→
AU
Not Authenticated
Challenge Text
AU
→
SU
Not Authenticated
Challenge Text Encrypted SU
→
AU Not Authenticated
Authentication Successful AU
→
SU Authenticated
SU Status: Authenticated
Association Request
SU
→
AU
Authenticated
Association Successful
AU
→
SU
Associated
SU Status: Associated
ACK
SU
→
AU
Associated
Data Traffic
SU
↔
AU
Associated
™ The SNR measured at the SU