Routing – Brocade Mobility Access Point System Reference Guide (Supporting software release 5.5.0.0 and later) User Manual
Page 138
![background image](/manuals/361710/138/background.png)
128
Brocade Mobility Access Point System Reference Guide
53-1003100-01
5
6. Define the following PortFast parameters for the profile configuration:
7. Define the following Error Disable settings:
8. Use the Spanning Tree Instance table to add indexes to the spanning tree topology.
Add up to 16 indexes and use the Priority setting to define the bridge priority used to determine the
root bridge. The lower the setting defined, the greater the likelihood of becoming the root bridge in
the spanning tree topology.
9. Use the Spanning Tree Instance VLANs table to add VLAN instance indexes (by numeric ID) and
VLANs to the spanning tree topology.
10. Select the OK button located at the bottom right of the screen to save the changes. Select
Reset to revert to the last saved configuration.
Routing
Routing is the process of selecting IP paths to send access point managed network traffic. Use the
Routing screen to set destination IP and gateway addresses enabling assignment of static IP
addresses for requesting clients without creating numerous host pools with manual bindings. This
eliminates the need for a long configuration file and reduces the resource space required to
maintain address pools.
Cisco MSTP Interoperability
Select either the Enable or Disable radio buttons to enable/disable interoperability with Cisco’s
version of MSTP, which is incompatible with standard MSTP. This setting is disabled by default.
Hello Time
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.
Forward Delay
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).
Maximum Age
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 BPDU Filter
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.
PortFast BPDU Guard
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.
Enable Recovery
Select this option to enable a error disable timeout resulting from a BPDU guard. This setting is
disabled by default.
Recovery Interval
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.