Netgear GS716Tv3 – ProSAFE 16-Port Gigabit Managed Switch 管理者ガイド

The Spanning Tree Protocol (STP) provides a tree topology for any arrangement of bridges. 
STP also provides one path between end stations on a network, eliminating loops. Spanning 
tree versions supported include Common STP, Multiple STP, and Rapid STP.

Classic STP provides a single path between end stations, avoiding and eliminating loops. For 
information about configuring Common STP, see 

on page 101.

Multiple Spanning Tree Protocol (MSTP) supports multiple instances of Spanning Tree to 
efficiently channel VLAN traffic over different interfaces. Each instance of the spanning tree 
behaves in the manner specified in IEEE 802.1w, Rapid Spanning Tree (RSTP), with slight 
modifications in the working but not the end effect (chief among the effects, is the rapid 
transitioning of the port to forwarding). The difference between the RSTP and the traditional 
STP (IEEE 802.1D) is the ability to configure and recognize full-duplex connectivity and ports 
that are connected to end stations, resulting in rapid transitioning of the port to forwarding 
state and the suppression of topology change notification. These features are represented by 
the parameters pointtopoint and edgeport. MSTP is compatible with both RSTP and STP. An 
MSTP bridge can be configured to behave entirely as a RSTP bridge or a STP bridge.

For two bridges to be in the same region, the force version should be 
802.1s, and their configuration name, digest key, and revision level 
should match. For additional information about regions and their 
effect on network topology, refer to the IEEE 

802.1Q

 standard.

The Spanning Tree menu contains the links described in the following sections.