8.7.4 Other properties
Switching properties
Max. number of learnable addresses 8000
Aging time 30 sec
Switching technique Store and forward
Latency 5 μs
Reconfiguration times for redundancy mechanisms
Redundancy mechanism Reconfiguration times
HRP 300 ms
Standby link 300 ms
MRP 200 ms
Mean time between failure (MTBF)
The value in the following table applies to the basic device without media modules.
MTBF > 30 years
1)
1)
This value applies at 40 °C.
In the calculation of the MTBF of a modular switch, the standard parts count applies; in other
words, the reciprocals of all component failure rates are added.
The reciprocal of this total id the MTBF of the entire assembly.
07%)
WRWDO
07%)
EDVLFGHYLFH
07%)
PRGXOHQ
07%)
PRGXOH
Note
The IE Switches X-300 support "full wire speed switching" complying with IEEE 802.3 on all
ports. The number of packets therefore depends on the packet length.
Full wire speed switching
Number of frames per second At a frame length of
At 100 Mbps At 1000 Mbps
148810 1488095 64 bytes
84459 844595 128 bytes
45290 452899 256 bytes
23496 234962 512 bytes
11973 119732 1024 bytes
9615 96154 1280 bytes
8127 81274 1518 bytes
Technical specifications
8.7 X-300M PoE technical specifications
SCALANCE X-300
Operating Instructions, 11/2019, A5E01113043-24 193
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