Siemens SCALANCE X-300EEC, Compact Operating Instructions

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Number of frames per second At a frame length of
At 100 Mbps At 1000 Mbps
9615 96154 1280 bytes
8127 81274 1518 bytes
Note
The following applies to IE Switches X-300:
The number of IE Switches X-300 connected in a line influences the frame delay time. When
a frame passes through the switch, this is delayed by the Store&Forward function of the
IE Switch X-300 by the following values:
● at 64 bytes frame length: Delay of approx. 10 microseconds (at 100 Mbps)
● at 1500 bytes frame length: Delay of approx. 130 microseconds
(at 100 Mbps)
This means, the more IE Switches X-300 a frame runs through, the higher the frame delay.
PRP compatibility
Device variant As of version *
X302-7EEC
X307-2EEC V3.7.0
* Information about the firmware version (V) as of which PRP is supported.
Note
For a device to be used in PRP networks, it must be able to process a frame length of at least
1528 bytes (Jumbo Frames). This value is the maximum frame length including VLAN tag of
1522 bytes plus the length of the PRP trailer of 6 bytes. The following table shows the version
as of which the devices are PRP-compatible.
Technical data
7.4 Other properties
SCALANCE X-300EEC
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Compact Operating Instructions, 11/2019, A5E02630809-14