McDATA ULTRANETTM EDGE STORAGE ROUTER 3000 - Manual (Page 408)

I-2 UltraNet™ Edge Storage Router 3000 User Guide
Issuing the Spantree Portfast Command
The following example demonstrates how to enable the
spanning-tree port fast-start feature on a port 2 of module 1:
Console> (enable) set spantree portfast 1/2 enable
Warning: Spantree port fast start should only be enabled
on ports connected to a single host. Connecting hubs,
concentrators, switches, bridges, etc. to a fast start
port can cause temporary spanning tree loops. Use with
caution.
Spantree port 1/2 fast start enabled.
Console> (enable)