Motorola WiNG 5.5 Reference Manual page 162

5 - 76 WiNG 5.5 Access Point System Reference Guide
Hello Time
Forward Delay
Maximum Age
6. Define the following
PortFast BPDU Filter
PortFast BPDU Guard
7. Define the following
Enable Recovery
Recovery Interval
8. Use the Spanning Tree Instance
Add up to 16 indexes and use the
the setting defined, the greater the likelihood of becoming the root bridge in the spanning tree topology.
9. Use the Spanning Tree Instance VLANs
tree topology.
10. Select the OK
configuration.
Set a BPDU hello interval from 1 - 10 seconds. BPDUs are exchanged regularly (every 2
seconds by default) and enable supported devices to keep track of network changes and
start/stop port forwarding as required.
Set the forward delay time from 4 - 30 seconds. When a device is first attached to a
port, it does not immediately start to forward data. It first processes BPDUs and
determines the network topology. When a host is attached the port always goes into
the forwarding state, after a delay it goes through the listening and learning states. The
time spent in the listening and learning states is defined by the forward delay (15
seconds by default).
Use the spinner control to set the maximum time (in seconds) to listen for the root
bridge. The root bridge is the spanning tree bridge with the smallest (lowest) bridge ID.
Each bridge has a unique ID and a configurable priority number, the bridge ID contains
both. The available range is from 6 - 40. The default setting is 20.
PortFast parameters for the profile configuration:
Select Enable to invoke a BPDU filter for this PortFast enabled port. Enabling the BPDU
filter ensures this port channel does not transmit or receive any BPDUs. BPDUs are
exchanged regularly, and enable the access point to keep track of network changes and
to start and stop port forwarding as required. The default setting is Disabled.
Select Enable to invoke a BPDU guard for the PortFast enabled port. Enabling the BPDU
Guard means this port will shutdown on receiving a BPDU. Thus, no BPDUs are
processed. BPDUs are exchanged regularly, and enable the access point to keep track
of network changes and to start and stop port forwarding as required. The default
setting is Disabled.
Error Disable settings:
Select this option to enable a error disable timeout resulting from a BPDU guard. This
setting is disabled by default.
Define the recovery interval used to enable disabled ports. The available range is from
10 - 1,000,000 seconds with a default setting of 300.
table to add indexes to the spanning tree topology.
Priority setting to define the bridge priority used to determine the root bridge. The lower
button located at the bottom right of the screen to save the changes. Select Reset to revert to the last saved
table to add VLAN instance indexes (by numeric ID) and VLANs to the spanning