Chapter 42 BPDU Guard
XGS4600 Series User’s Guide
409
C
HAPTER
42
BPDU Guard
42.1 BPDU Guard Overview
A BPDU (Bridge Protocol Data Units) is a data frame that contains information about STP. STP-aware
switches exchange BPDUs periodically.
The BPDU guard feature allows you to prevent any new STP-aware switch from connecting to an existing
network and causing STP topology changes in the network. If there is any BPDU detected on the ports
on which BPDU guard is enabled, the Switch disables the ports automatically. You can then enable the
ports manually in the
Basic Setting
>
Port Setup
screen, or use the
Errdisable Recovery
screen (see
) to have the ports become active after a certain time interval.
42.1.1 What You Can Do
• Use the
BPDU Guard Status
screen (
) to view the BPDU guard status.
• Use the
BPDU Guard Configuration
) to enable BPDU guard on the
Switch.
42.2 BPDU Guard Status
Use this screen to view whether BPDU guard is enabled on the Switch and the port status. Click
Advanced Application
>
BPDU Guard
in the navigation panel.
Figure 327
Advanced Application > BPDU Guard Status (Standalone Mode)
