Configuration using Web Based Management and Command Line Interface
4.5 The Switch menu
SCALANCE X-300 / X-400
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Configuration Manual, 10/2014, C79000-G8976-C187-22
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Calc Path Cost
If the value for Admin Path Cost is > 0, this value is adopted as Calculated Path Cost.
If the value for Admin Path Cost = 0, the value for Calculated Path Cost is calculated
automatically. The calculation of the path costs is largely based on the transmission
speed.
The higher the achievable transmission speed is, the lower the value for Admin Path Cost
should be.
Typical values for path costs with spanning tree:
–
1000 Mbps = 4
–
100 Mbps = 19
–
10 Mbps = 100
Typical values for path costs with rapid spanning tree:
–
1000 Mbps = 20,000
–
100 Mbps = 200,000
–
10 Mbps = 2,000,000
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State
The "State" column shows the current status of the port.
The following statuses are possible:
–
disabled
The port only receives and is not involved in STP, MSTP and RSTP.
–
blocking
The port receives BPDUs.
–
listening
The port receives and sends BPDUs. The port is involved in the spanning tree
algorithm.
–
learning
Stage prior to the forwarding status, the port is actively learning the topology; in other
words, the node addresses.
–
forwarding
Following the reconfiguration time, the port is active again in the network; it receives
and forwards data frames.
