AT-TQ2450 Wireless Access Point User’s Guide
Table 23. Modify QoS Queue Parameters Window (Continued)
Column | Description |
|
|
|
|
| The first random number the access point |
| generates will be between 0 and this |
| number. |
| If the first random backoff wait time |
| expires before the data frame is sent, a |
| retry counter is increased and the random |
| backoff value (window) is doubled. |
| Doubling continues until the size of the |
| random backoff value reaches the |
| number defined in the maximum |
| contention window. |
| Valid values for this parameter are: 1, 3, 7, |
| 15, 31, 63, 127, 255, 511, and 1023. This |
| parameter must be lower than the cwMax |
| value. |
|
|
cwMax (Maximum | Specifies the maximum contention |
Contention Window) | window, which is the upper limit (in |
| milliseconds) for doubling the random |
| backoff value. The doubling continues |
| until either the data frame is sent or the |
| maximum contention size is reached. |
| Once the maximum contention window is |
| reached, retries continue until a maximum |
| number of retries is reached. |
| Valid values for this parameter are: 1, 3, 7, |
| 15, 31, 63, 127, 255, 511, and 1023. This |
| parameter must be higher than the cwMin |
| value. |
|
|
TXOP Limit | Specifies the Transmission Opportunity |
| (TXOP) limit. The limit defines the time |
| interval, in 32 milliseconds periods, that a |
| WME client has the right to initiate |
| transmission to the access point. The |
| TXOP Limit maximum value is 2047. |
|
|
