Technical specifications
8.2 X-300M technical specifications
SCALANCE X-300
154 Operating Instructions, 10/2010, A5E01113043-10
Note
The IE Switches X-300 support full wire speed switching complying with IEEE 802.3 on all
ports.
The number of packets depends on the packet length according to the IEEE802.3 standard:
Table 8- 15 Full wire speed switching
Number of frames
at 100 Mbps at 1000 Mbps
At a frame length of (in bytes):
148810 1488095 64
84459 844595 128
45290 452899 256
23496 234962 512
11973 119732 1024
9615 96154 1280
8127 81274 1518
Note
The following applies to IE Switches X-300:
The number of IE Switches X-300 connected in a line influences the frame propagation time.
When a frame passes through an IE Switch X-300, it is delayed by the Store&Forward
function of the IE Switch X-300
ï‚· with a 64 byte frame length by approx. 10 microseconds (at 100 Mbps)
ï‚· with a 1500 byte frame length by approx. 130 microseconds (at 100 Mbps)
This means that the more IE Switch X-300 devices the frame passes through, the longer the
frame delay.
8.2 X-300M technical specifications
8.2.1 X-300M construction, installation and environment
Note
With modular devices (M), take the values of media modules and transceivers into account