Figure 4.251Switching > Spanning Tree > Statistics - Advantech EKI-9516P-HV User Manual

To access this page, click Switching > Spanning Tree > Statistics.
The following table describes the items in the previous figure.
Item
Interface
STP BPDUs Rx
STP BPDUs Tx
RSTP BPDUs Rx
RSTP BPDUs Tx
MSTP BPDUs Rx
MSTP BPDUs Tx
Refresh
4.4.20 VLAN
Adding Virtual LAN (VLAN) support to a Layer 2 switch offers some of the benefits of
both bridging and routing. Like a bridge, a VLAN switch forwards traffic based on the
Layer 2 header, which is fast, and like a router, it partitions the network into logical
segments, which provides better administration, security and management of multi-
cast traffic.
A VLAN is a set of end stations and the switch ports that connect them. You may
have many reasons for the logical division, such as department or project member-
ship. The only physical requirement is that the end station and the port to which it is
connected both belong to the same VLAN.
Each VLAN in a network has an associated VLAN ID, which appears in the IEEE
802.1Q tag in the Layer 2 header of packets transmitted on a VLAN. An end station
may omit the tag, or the VLAN portion of the tag, in which case the first switch port to
receive the packet may either reject it or insert a tag using its default VLAN ID. A
given port may handle traffic for more than one VLAN, but it can only support one
default VLAN ID.
4.4.20.1 Status
Use the VLAN Status page to view information about the VLANs configured on your
system.
Figure 4.251 Switching > Spanning Tree > Statistics
Description
The port or link aggregation group (LAG) associated with the rest of
the data in the row.
The number of classic STP (IEEE 802.1d) BPDUs received by the
interface.
The number of classic STP BPDUs sent by the interface.
The number of RSTP (IEEE 802.1w) BPDUs received by the interface.
The number of RSTP BPDUs sent by the interface.
The number of MSTP (IEEE 802.1s) BPDUs received by the interface.
The number of MSTP BPDUs sent by the interface.
Click Refresh to update the screen.
227 EKI-9500 Series User Manual