XGS2220 Series User’s Guide
338
C
HAPTER
53
Spanning Tree Protocol
53.1 Spanning Tree Protocol Overview
The Switch supports Spanning Tree Protocol (STP), Rapid Spanning Tree Protocol (RSTP) and Multiple
Spanning Tree Protocol (MSTP) as defined in the following standards.
• IEEE 802.1D Spanning Tree Protocol
• IEEE 802.1w Rapid Spanning Tree Protocol
• IEEE 802.1s Multiple Spanning Tree Protocol
The Switch also allows you to set up multiple STP configurations (or trees). Ports can then be assigned to
the trees.
53.1.1 What You Can Do
• Use the
Spanning Tree Protocol
Status
screen (
) to view the STP status in the
different STP modes (RSTP, MRSTP or MSTP) you can configure on the Switch.
• Use the
Spanning Tree Setup
screen (
) to activate one of the STP modes on
the Switch.
• Use the
Rapid Spanning Tree Protocol Status
screen (
) to view the RSTP status.
• Use the
Rapid Spanning Tree Protocol
screen (
) to configure RSTP settings.
• Use the
Multiple Rapid Spanning Tree Protocol Status
screen (
) to view the
MRSTP status.
• Use the
Multiple Rapid Spanning Tree Protocol
screen (
) to configure MRSTP.
• Use the
Multiple Spanning Tree Protocol Status
screen (
) to view the MSTP
status.
• Use the
Multiple Spanning Tree Protocol
) to configure MSTP.
• Use the
Multiple Spanning Tree Protocol Port Setup
screen (
) to configure
MSTP ports.
53.1.2 What You Need to Know
Read on for concepts on STP that can help you configure the screens in this chapter.
(Rapid) Spanning Tree Protocol
(R)STP detects and breaks network loops and provides backup links between switches, bridges or
routers. It allows a switch to interact with other (R)STP-compliant switches in your network to ensure that
only one path exists between any two stations on the network.
The Switch uses IEEE 802.1w RSTP (Rapid Spanning Tree Protocol) that allows faster convergence of the
