Specifications

Altitude 4700 Series Access Point Product Reference Guide
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2 Refer to the Spanning Tree Info field to for details on spanning tree state, and root Access Point
designation.
3 Refer to the Port Interface Table to assess the state of the traffic over the ports listed within the table
for the root and bridge and designated bridges.
Spanning Tree
State
Displays whether the spanning tree state is currently
enabled or disabled. The spanning tree state must be
enabled for a unique spanning-tree calculation to occur
when the bridge is powered up or when a topology change
is detected.
Designated Root Displays the Access Point MAC address of the bridge
defined as the root bridge in the Bridge STP Configuration
screen.
Bridge ID The Bridge ID identifies the priority and ID of the bridge
sending the message
Root Port Number Identifies the root bridge by listing its 2-byte priority
followed by its 6-byte ID.
Root Path Cost Bridge message traffic contains information identifying the
root bridge and the sending bridge. The root path cost
represents the distance (cost) from the sending bridge to
the root bridge.
Bridge Max Msg.
Age
The Max Msg Age measures the age of received protocol
information recorded for a port, and to ensure the
information is discarded when it exceeds the value set for
the Maximum Message age timer. For information on
setting the Maximum Message Age.
Bridge Hello Time The Bridge Hello Time is the time between each bridge
protocol data unit sent. This time is equal to 2 seconds
(sec) by default, but can tuned between 1 and 10 sec. The
802.1d specification recommends the Hello Time be set to
a value less than half of the Max Message age value.
Bridge Forward
Delay
The Bridge Forward Delay value is the time spent in a
listening and learning state. This time is equal to 15 sec by
default, but you can tune the time to be between 4 and 30
sec.
Port ID Identifies the port from which the configuration message
was sent.
State Displays whether a bridge is forwarding traffic to other
members of the mesh network (over this port) or blocking
traffic. Each viable member of the mesh network must
forward traffic to extent the coverage area of the mesh
network.
Path Cost The root path cost is the distance (cost) from the sending
bridge to the root bridge.
Designated Root Displays the MAC address of the Access Point defined
with the lowest priority within the Mesh STP Configuration
screen.
Designated Bridge There is only one root bridge within each mesh network.
All other bridges are designated bridges that look to the
root bridge for several mesh network timeout values.
Designated Port Each designated bridge must use a unique port. The value
listed represents the port used by each bridge listed within
the table to route traffic to other members of the mesh
network.