User`s guide

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FX-16NW
between the device and the FX-16NW.
The Spanning Tree Protocol (STP) feature of the Switching Hub
implements intelligent fault-tolerance functions to a network.
Note:
STP is a part of IEEE802.1D Bridge Standard defined by IEEE (Institute of
Electrical and electronics Engineers). Devices with STP support utilize
BPDU (Bridge Protocol Data Unit) frames to communicate with each other.
■ About STP
STP utilizes bridge-based technologies to provide fault tolerance to a
network. STP is essentially a protocol for bridges (switches) used to
remove redundant links from a network. All STP devices including FX-
16NW send out BPDU frames from each port, and at the same time detect
incoming BPDU frames sent by other STP devices. Using this protocol,
STP devices learn the path cost and ID information of each other and block
a redundant path with the highest path cost. With STP, you can implement
multiple redundant paths for a given network traffic. In addition, STP
provides the following features:
● Blocks (disables) the redundant path(s) when the main path (with the
lowest path cost) is working normally.
About Spanning Tree Protocol