Symbol Technologies Spectrum24 AP-4131 - Manual (Page 20)

Introduction
10 AP-4131 Access Point Product Reference Guide
The Root AP and Association Process
By default, APs with WLAP Mode enabled and within range of each other
automatically associate and configure wireless operation parameters at
power up. This association process determines the wireless connection
viability and establishes the Root AP and subsequently designated WLAPs.
APs communicating wirelessly with one another require the same: Net_ID
(ESS), Encryption mode, Data Rate and Short RF Preamble settings.
The root AP maintains the wireless connection among WLAPs by sending out
beacons, sending and receiving configuration BPDU (Bridge Protocol Data
Unit) packets between each designated WLAP. The WLAP with the lowest
WLAP ID becomes the Root AP. A concatenation of the WLAP Priority value
and the MAC address becomes the WLAP ID. All WLAPs associated with the a
Root AP use the Root AP channel, DTIM (Delivery Traffic Indication Message)
and TIM (Traffic Indication Map) interval.
In this configuration, the WLAP Priority value is the default
8000
Hex. On
concatenating this value to the MAC addresses of the APs, AP A on Ethernet I
has the lowest WLAP ID with
800000A0F800181A
, making it the Root AP.
AP C uses the AP A channel, DTIM and TIM interval.