Stp - 3Com 9100 User Manual

Using the Command-Line Interface 155

STP

You have connected an endstation directly to the switch and the
endstation fails to boot correctly:
The Switch 9100 has STP enabled, and the endstation is booting before
the STP initialization process is complete. Specify that STP has been
disabled for that VLAN, or turn off STP for the switch ports of the
endstation and devices to which it is attempting to connect, and then
reboot the endstation.
The switch keeps aging out endstation entries in the switch
Forwarding Database (FDB):
Reduce the number of topology changes by disabling STP on those
systems that do not use redundant paths.
Specify that the endstation entries are static or permanent.