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Spanning Tree Algorithm
In a more complex network environment, devices may physically
be connected in a loop, causing network failure due to the infinite
transfer of packets. In anticipation of such perplexity, the
TE100-S55 is designed to support the Spanning Tree Algorithm
(STA). Using STA, the TE100-S55 will prevent network loops
by logically designating a single path for each connection, as
well as establishing a backup path in case of a path failure.
Specifically, Spanning Tree Algorithm (STA) provides the
following services:
• Network loop detection and prevention - Only one path is
allowed between any two switch/bridge segments. If there
are multiple paths, forwarded packets may loop indefinitely
and result in serious network failure. When STA detects a
loop, it activates the path with the lowest “path cost”, while
blocking the other paths.
• Automatic topology re-configuration - If an active path
fails, the backup path will be automatically activated, and the
STA will auto-configure the network topology.
In a simple network where there is no possibility of network
looping, you may disable the STA function. However, if the
possibility of network loops exist, just leave the STA enabled
along with other switches/bridges in the network. The TE100-
S55 will interact with other switches/bridges to dynamically
establish forwarding paths within the network.
Subsequently, the TE100-S55 may be referred to as a bridge.
Since a switch is analogous to a bridge, the STA rules of a bridge
applies equally to the TE100-S55.