Users Guide

Table Of Contents
5. Click Update.
To disable PortFast and BPDU Guard uncheck the PortFast and BPDU Guard checkboxes.
It is recommended to enable PortFast only on access port types. However, PortFast can be enabled on the trunk ports
by selecting the Trunk checkbox in the WebUI.
In the CLI
Execute the following commands at the command prompt to enable PortFast and BPDUGuard:
(host) (config) #interface gigabitinternet 0/0/4
(host) (config-if)#spanning-tree portfast
(host) (config-if)#spanning-tree bpduguard
To disable PortFast
(host) (config-if) #no spanning-tree portfast
(host) (config-if) #no spanning-tree bpduguard
Execute the following command to enable PortFast on trunk ports:
(host) (config) #interface gigabitethernet 0/0/4
(host) (config-if)#spanning-tree portfast trunk
Execute the following show command to display the status of the STP ports in Global RSTP mode.
(host) (config-if) #show spanning-tree interface gigabitethernet 0/0/4
Execute the following show command to display the status of the STP ports in Instance RSTP (PVST) mode.
(host) #show spanning-tree interface gigabitethernet 0/0/4
Execute the following command to display the status of BPDU Guard enabled port that is in ErrDis state. This
command is applicable for ports that are in both the Global RSTP and Instance RSTP (PVST) modes.
(host) (config-if) #show spanning-tree interface gigabitethernet 0/0/4
Preventing WANLink Failure on Virtual APs
In the branch controller deployments, the local controllers are connected across the WAN link from the master
controller to the RADIUS server. A WAN link outage will result in service outage as new users cannot be
authenticated to 802.1X Virtual APs. This feature provides limited connectivity to branch controllers even
when the WAN link is down. To provide connectivity when the WAN link is down, open and PSK SSID Virtual APs
(VAPs) are available at all times and the user can connect to these VAPs instead of the main 802.1X Virtual AP.
Currently, this feature is targeted for Campus APs in branch office deployments.
When all the WAN links are down, an AP management module in the controller updates the link state using the
notification it receives from the health check manager. Depending on the link state, the new set of Virtual APs
are made available to the users, ensuring minimum service depending on the deployment. The VAPs for WAN
link failure feature can be configured using the branch controller WebUI or command-line interface.
In the WebUI
1. Access the WebUI of a W-7000 Series controller configured as a branch controller, and navigate to
Configuration> AP Configuration> AP Group Page.
2. Select an AP Group.
3. Navigate to Wireless LAN > Virtual AP.
4. Select an existing virtual AP or add a new virtual AP.
Dell Networking W-Series ArubaOS 6.5.x | User Guide BranchController Config for Controllers |
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