ORiNOCO® Access Points Installation and Management Guide ...

Device Configuration Using Web Interface• To avoid a network loop between Bridge 1 and Bridge 2, the STP feature should be enabled on all the devices. Oncethe STP feature is enabled, Bridge 1, Bridge 2 and Bridge 3 change from Disable state to Listening state and startexchanging the BPDU packets. Bridge 1 and Bridge 2 then act as Designated Bridges and Bridge 3 as the RootBridge, as it has the highest priority and smallest MAC Address. The Root Bridge (Bridge 3) then calculates theshortest low cost path to forward the data from bridge 1 to bridge 2, on a loop- free bridged network.• Bridge 1 and Bridge 2 then change from Listening state to Learning state where they update the learn tables andenable the shortest low cost path determined by the Root Bridge.• The STP enabled Bridge 2 then changes from Learning state to Blocking state and blocks the longest high cost path,determined by the Root Bridge to avoid loops on the network.• Bridge 1 finally changes from Blocking state to Forwarding state and forwards the data packet to Bridge 2 throughthe shortest low cost path enabled, avoiding loops on the network.To configure STP on the device, do the following:1. Navigate to CONFIGURATION > Network > STP. The Network STP Configuration screen appears.Figure 3-7 STP Configuration• Status: Specifies the status of the STP feature on the device. By default, STP is disabled. To enable, select Enablefrom the drop down menu.• Bridge Priority: Specifies the priority assigned to a bridge. By default, a bridge is assigned with priority value of4096. To configure, enter the value between 0 - 61440 (as multiples of 4096).: Bridge assigned with the lowest value gets the highest priority, and is selected as Root Bridge.ORiNOCO® AP-800 and AP-8000 Installation and Management Guide 42