User Documentation

2053260000/05/2015150
Glossary
Ethernet
Ethernet is a networking technology for local networks (LANs).
Fast Ethernet
Today Fast Ethernet is a very commonly used version of the Ethernet offering
100 Mbit/s via category 5 or higher twisted-pair cables. The maximum
permissible range is 100 metres.
Flow Control
Flow Control is a function for adapting transmission to the receptiveness of
the receiver. Flow Control controls the transmission between transmitter and
receiver by only allowing the transmitter to transmit an amount of data that the
receiver can receive.
Forwarding
A process in which data is forwarded from one port to another in the switch.
Frame
A frame is a data transmission frame of the data link layer (layer 2 in the OSI
model), containing the header and trailer information which the bit transmission
layer needs for transmission. All frame formats have in common the start
delimiter, the destination and source address, of course the data itself and a
frame check sequence.
Frames
In networks, the data packets awaiting transmission with a standard size of
1518 bytes are known as frames in standard IEEE 802.3..
Jumbo Frames
All data packets (frames) larger than the standard size of 1,518 bytes are known
as jumbo frames.
A header, containing the path, is always attached to each frame. In order to
reduce the attachment of headers and increase the speed of transmission, the
frame size can be varied. The problem with jumbo frames is that defective data
packets can only be detected once the le has arrived in full. Given the longer
transmission time, they are also only detected later on. Jumbo frames are mainly
used for data backups.
Gigabit Ethernet / 10 GbE (10-Gigabit Ethernet)
Gigabit Ethernet is a version of Ethernet with a data transmission speed of 1,000 Mbit/s.
10 GbE operates in the same way with 10 Gbit/s. Weidmüller has a plug-in
connector system with STEADYTEC®
®
technology especially for these
10 GbE applications.