[c-nsp] MSTP Link Cost

[Asbjorn Hojmark - Lists]

> On a trial basis when we migrated from Rapid PVST+ to MSTP in 
> a network of Cisco 3560G switches, we observed that all the 
> link (FastEthernet) cost which by default is 19 have been 
> increased to 200000. Any idea on what basis this link costs 
> is calculated? Do MSTP use some different formula for link 
> cost calculation.

As far as I can see, the default recommended value is
  '20 Tbps / link speed'.
See http://www.hojmark.net/stp-port-cost.html

-A