DIGITUS POE Web Smart Ethernet Switch
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4.8 Spanning Tree
4.8.1 STP Bridge Settings
STP (Spanning Tree Protocol) is the acronym for spanning tree protocol, the protocol can be
applied to loop network, the algorithm by a certain path redundancy, while loop network
loop-free tree pruning into the network in order to avoid reporting Man in the loop network
hyperplasia and infinite loop. STP protocol will continue to 50s, this is the PC is turned on
and some 50s before they can access, for data transfer. RSTP STP improved algorithm,
within the agreement time to 1s.
4.8.2 STP Port Settings
This feature is available to you to switch the priority of each port and RPC set, usually set
according to the following priority rules, and RPC can remain the default.
RPC:
Root Path Cost. The value range is 0 ~ 200000000, used to determine the port to the
root path cost, often with the speed, so when set to Auto, its value is inversely proportional to
speed.
Election root port, in accordance with the following principles. COST - Port ID, compare the
COST value, that is, the cost of the port to the root bridge. COST lower the value the more
the priority.
【
COST VALUE
】
Bandwidth COST
10Gps 2
1Gps
4
100M
19
10M 100