Siemens SCALANCE XR-300WG, Руководство по эксплуатации

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8.7 Switching properties
The switching properties listed below apply to the SCALANCE XR-300WG.
Switching properties
Aging time
Can be configured (default value: 30 seconds)
Maximum frame size 2048
Max. number of learnable address‐
es 16382
Response to LLDP frames Blocking
Response to spanning tree BPDU
frames Forwarding
CoS acc. to IEEE 802.1Q Yes
QoS priority queues 4
Switching technique Store and forward
Latency 10 microseconds
Full wire speed switching Frame length (bytes) Number of frames per second
At 100 Mbps At 1000 Mbps At 10000 Mbps
64 148810 1488095 14136931
128 84459 844595 8023670
256 45290 452899 4415773
512 23496 234962 2320257
1024 11973 119732 1189835
1280 9615 96154 955529
1518 8127 81274 807664
Note
The number of SCALANCE XR-300WG modules connected in a line influences the frame delay.
When a frame passes through IE switches of the SCALANCE XR-300WG product line, it is delayed
by the store and forward function of the device:
• with a 64 byte frame length by approx. 10 microseconds (at 100 Mbps)
• with a 1500 byte frame length by approx. 130 microseconds (at 100 Mbps)
This means the more devices of the SCALANCE XR-300WG product line that the frame passes
through, the longer the frame delay.
Technical specifications
8.7 Switching properties
SCALANCE XR-300WG
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Operating Instructions, 03/2021, C79000-G8976-C454-07