Dell - page 345

Configuring Switching Information 345
Figure 7-38. Spanning Tree Global Settings
The STP Global Settings page contains the following fields:
• Spanning Tree Status — Enables or disables RSTP, STP, or MSTP on the switch.
•
STP Operation Mode — Specifies the STP mode by which STP is enabled on the switch. Possible
field values are:
Classic STP , Rapid STP, and Multiple STP .
•
BPDU Flooding — Specifies Bridge Protocol Data Unit (BPDU) packet handling when the spanning
tree is disabled on an interface. The possible field values are
Enable or Disable . The default value is
Disable .
•
Port Fa st — Enables Port Fast mode for all ports on the switch when checked. If Port Fast mode is
enabled for a port, the Port State is automatically placed in the Forwarding state when the port link is
up. Port Fast mode optimizes the time it takes for the STP protocol to converge. STP convergence can
take 30-60 seconds in large networks.
•
Port Fast B PDU Filt er — Specifies BPDU Filter Mode on all ports which are enabled for Port Fast
Mode. Possible values are
Enable and Disable . The default value is Disable .
•
Loop Guard — Enables or disables Loop Guard on all the ports.