Store-And-Forward Switching Mode; Transmission Methods - WAGO 852-1411/000-001 Manual

18 General
3.7

Store-and-forward switching mode

In "Store and Forward" mode, the ETHERNET switch caches the entire data
telegram, checks it for errors (CRC checksum) and if there are no errors, puts it
in a queue. Subsequently, the data telegram (MAC table) is selectively forwarded
to the port that has access to the addressed node.
The time delay required by the data telegram to pass the store-and-forward
switch depends on the telegram length.
Advantage of "Store and Forward":
The data telegrams are checked for correctness and validity. This prevents faulty
or damaged data telegrams from being distributed via the network.
3.8

Transmission Methods

2 modes are available for data transmission in ETHERNET networks:
• Half duplex
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• Full duplex
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Manual
Version 1.0.0
An ETHERNET device can only send or receive data at one time.
Collision detection (CSMA/CD) is enabled.
The length of the network is limited by the propagation delays of the
devices and transmission media.
An ETHERNET device can send and receive data at the same time.
Collision detection (CSMA/CD) is disabled.
The length of the network only depends on the performance limits of
the send and receive components used.
WAGO ETHERNET Accessories 852
852-1411/000-001 Industrial Eco Switch