Technical specifications
8.8 XR-300M PoE technical specifications
SCALANCE X-300
Operating Instructions, 02/2012, A5E01113043-12
205
8.8.5 Other properties
Table 8- 112 Switching properties
Max. number of learnable addresses 8 000
Aging time 30 sec
Switching technique Store and forward
Latency 5 μs
Table 8- 113 Reconfiguration times for redundancy mechanisms
Redundancy mechanism Reconfiguration times
HSR 300 ms
Standby link 300 ms
MRP 200 ms
Table 8- 114 Mean time between failure (MTBF)
MTBF > 15 years
1)
1)
The time information applies to the mounting device without media modules.
Table 8- 115 Full wire speed switching
Number of frames per second
At 100 Mbps At 1000 Mbps
At a frame length of
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
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.