Motorola WiNG 5.5 Reference Manual page 296

5 - 210 WiNG 5.5 Access Point System Reference Guide
messages conveys spanning tree information for each instance. Each instance can be assigned a number of configured
VLANs. The frames assigned to these VLANs operate in this spanning tree instance whenever they are inside the MST
region. To avoid conveying their entire VLAN to spanning tree mapping in each BPDU, the access point encodes an MD5
digest of their VLAN to an instance table in the MSTP BPDU. This digest is used by other MSTP supported devices to
determine if the neighboring device is in the same MST region as itself.
21. Select the Enable as Edge Port
to connect to a LAN which has no other bridges connected or is directly connected to a user device.
22. Select either the
indicates that the port should be treated as connected to a point-to-point link. Selecting Shared indicates that the port is
shared between multiple devices. An example for Shared connection would be when the port is connected to a hub.
Similarly, an example for a Point-to-Point connection would be when the port is connected to an access point.
23. Select either the
inter operability with CISCO's implementation of the Multiple Spanning Tree Protocol (MSTP) which is incompatible with
the standard MSTP implementation.
24. Select one of the available choices for
Protocol. Select RSTP to use Rapid Spanning Tree Protocol. Select MSTP to use Multiple Spanning Tree Protocol.
Select Not Supported
25. Select either the
other than those designated as roots in a network. When this port receives a better (superior) BPDU, the port state becomes
Blocked. It retains this state till the port no longer receives the better (superior) BPDU and then the state is changed to
Forwarding. Select Root to enable this feature. Select None to disable.
26. Select the Enable Port Fast
complete the MSTP state changes from Blocked to Forward. PortFast must only be enabled on ports on the wireless
controller which are directly connected to a Server/Workstation and not to another hub or controller. PortFast can be left
unconfigured on an access point.
27. Set the Enable PortFast BPDU Filter
controllers gather information about the network topology. When enabled, PortFast enabled ports do not transmit BPDU
messages. When set to 'Default' sets the PortFast BPDU Filter value to the bridge's BPDU filter value.
28. Set the Enable PortFast BPDU Guard
when controllers gather information about the network topology. When enabled, PortFast enabled ports are forced to shut
down when they receive BPDU messages. When set to 'Default' sets the PortFast BPDU Guard value to the bridge's BPDU
guard value.
29. Configure the
Instance Index
network segment. The cost of a path is the sum of all costs of traversal from the source to the destination. The default rule
for the cost of a network segment is, the faster the media, the lower the cost.
30. Configure the
Index value and its corresponding priority in the
root. The default rule is, the lower this value, the higher the chance that the port is assigned as a designated root.
31. Select OK to save the changes made to the Ethernet port's security configuration. Select
configuration if you do not wish to commit the overrides.
5.4.5.3.2 Virtual Interface Override Configuration
Profile Interface Override Configuration
A Virtual Interface is required for layer 3 (IP) access or provide layer 3 service on a VLAN. The Virtual Interface defines which
IP address is associated with each VLAN ID. A Virtual Interface is created for the default VLAN (VLAN 1) to enable remote
option to enable or disable the port as an edge port. An edge port is a port that is known
Point-to-Point or Shared
Enable or Disable radio button for the
Force Protocol Version
to disable spanning tree protocol for this interface.
None or Root radio button for the
option to enable or disable PortFast. PortFast enables reducing the time taken for a port to
value from the drop-down list. MSTP BPDUs are messages that are exchanged when
value from the drop-down list. MSTP BPDUs are messages that are exchanged
Spanning Tree Port Cost value. Select the
value and its corresponding cost in the
Spanning Tree Port Priority
radio button for the Link Type
CISCO MSTP Interoperability
field. Select STP to use the standard Spanning Tree
Guard field. Root guard is a mechanism to prevent election of roots
+ Add Row button to add a row to the table. Configure an
Cost column. This is the cost for a packet to traverse the current
value. Select the + Add Row
Priority column. This is the priority for this port becoming a designated
field. When Point-to-Point is selected, it
field. This enables or disables
to add a row to the table. Configure an
Reset to revert to the last saved
Instance