170
Configuring Switching Information
EdgeSwitch
™
Administration Guide
Ubiquiti Networks, Inc.
Spanning Tree Statistics
Use the
Spanning Tree Statistics
page to view information about the number and type of bridge protocol data
units (BPDUs) transmitted and received on each port.
To display the
Spanning Tree Statistics
page, click
Switching
>
Spanning Tree
>
Statistics
in the navigation menu.
Spanning Tree Statistics
Spanning Tree Statistics Fields
Field
Description
Interface
The port or link aggregation group (LAG) associated with the rest of the data in the row.
STP BPDUs Rx
The number of classic STP (IEEE 802.1d) BPDUs received by the interface.
STP BPDUs Tx
The number of classic STP BPDUs sent by the interface.
RSTP BPDUs Rx
The number of RSTP (IEEE 802.1w) BPDUs received by the interface.
RSTP BPDUs Tx
The number of RSTP BPDUs sent by the interface.
MSTP BPDUs Rx
The number of MSTP (IEEE 802.1s) BPDUs received by the interface.
MSTP BPDUs Tx
The number of MSTP BPDUs sent by the interface.
Click
Refresh
to update the screen with most recent data.
Mapping 802.1p Priority
The IEEE 802.1p feature allows traffic prioritization at the MAC level. The switch can prioritize traffic based on
the 802.1p tag attached to the L2 frame. Each port on the switch has multiple queues to give preference to
certain packets over others based on the class of service (CoS) criteria you specify. When a packet is queued
for transmission in a port, the rate at which it is serviced depends on how the queue is configured and
possibly the amount of traffic present in the other queues of the port. If a delay is necessary, packets get held
in the queue until the scheduler authorizes the queue for transmission.
