Spanning Tree Protocol; Spanning Tree Protocol Overview; What You Can Do; What You Need To Know - ZyXEL Communications GS1920v2 Series User Manual

46.1 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.

46.1.1 What You Can Do

• Use the Spanning Tree Protocol Status screen
different STP modes (RSTP, MRSTP or MSTP) you can configure on the Switch.
• Use the Spanning Tree Setup screen
the Switch.
• Use the Rapid Spanning Tree Protocol Status screen
• Use the Rapid Spanning Tree Protocol screen
• Use the Multiple Rapid Spanning Tree Protocol Status screen
MRSTP status.
• Use the Multiple Rapid Spanning Tree Protocol screen
• Use the Multiple Spanning Tree Protocol Status screen
status.
• Use the Multiple Spanning Tree Protocol screen
• Use the Multiple Spanning Tree Protocol Port Setup screen
MSTP ports.

46.1.2 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

Spanning Tree Protocol

GS1920v2 Series User's Guide
C
H A P T E R
(Section 46.2 on page
(Section 46.3 on page 271) to activate one of the STP modes on
(Section 46.4 on page
(Section 46.5 on page
(Section 46.6 on page
(Section 46.7 on page
(Section 46.8 on page
(Section 46.9 on page
(Section 46.10 on page
268
46
271) to view the STP status in the
272) to view the RSTP status.
274) to configure RSTP settings.
276) to view the
278) to configure MRSTP.
280) to view the MSTP
283) to configure MSTP.
286) to configure