Brocade Mobility 5181 Access Point Product Reference Guide (Supporting software release 4.4.0.0) - Manual (Page 196)

182 Brocade Mobility 5181 Access Point Product Reference Guide
53-1002516-01
Viewing LAN statistics
7
5. Click the Clear LAN Stats button to reset each of the data collection counters to zero in order to
begin new data collections. The RX/TX Packets and RX/TX Bytes totals remain at their present
values and are not cleared.
6. Click the Logout button to securely exit the Access Point applet. There will be a prompt
confirming logout before the applet is closed.
Viewing STP statistics for a LAN
Each access point LAN has the ability to track its own unique STP statistics. Refer to the LAN STP
Stats page when assessing mesh networking functionality for each of the two access point LANs.
Access points in bridge mode exchange configuration messages at regular intervals (typically 1 to 4
seconds). If a bridge fails, neighboring bridges detect a lack of configuration messaging and initiate
a spanning-tree recalculation (when spanning tree is enabled).
To view access point LAN STP statistics:
1. Select Status and Statistics -> LAN Stats -> LAN1 Stats (or LAN2 Stats) > STP Stats from the
Mobility 5181 Access Point menu tree.
2. Refer to the Spanning Tree Info field to for details on spanning tree state, and root access point
designation.
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. For
information on defining an access point as a root bridge, see
“Setting the LAN configuration for mesh networking support” on
page 363.
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. For information on setting the Bridge Max Msg. Age,
see
“Setting the LAN configuration for mesh networking support”
on page 363.