Extreme Networks Altitude 4700 Series Product Reference Manual page 269

2 Refer to the Spanning Tree Info field to for details on spanning tree state, and root Access Point
designation.
Spanning Tree
State
Designated Root
Bridge ID
Root Port Number
Root Path Cost
Bridge Max Msg.
Age
Bridge Hello Time
Bridge Forward
Delay
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.
Port ID
State
Path Cost
Designated Root
Designated Bridge
Designated Port
Altitude 4700 Series Access Point Product Reference Guide
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.
Displays the Access Point MAC address of the bridge
defined as the root bridge in the Bridge STP Configuration
screen.
The Bridge ID identifies the priority and ID of the bridge
sending the message
Identifies the root bridge by listing its 2-byte priority
followed by its 6-byte ID.
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.
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.
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.
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.
Identifies the port from which the configuration message
was sent.
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.
The root path cost is the distance (cost) from the sending
bridge to the root bridge.
Displays the MAC address of the Access Point defined
with the lowest priority within the Mesh STP Configuration
screen.
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.
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.
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