ipBalance

Here is quick note of cost value of bandwidth for Spanning Tree Protocol(STP)
If you want to controll STP in manual, you are better to know the specific STP Cost Value.

Bandwidth --------- STP Cost Value
4 Mbps       ---------  250
10 Mbps     ---------  100
16 Mbps     ---------    62
45 Mbps     ---------    39
100 Mbps   ---------    19
155 Mbps   ---------    14
622 Mbps   ---------      6
1 Gbps        ---------      4
10 Gbps      ---------      2