Administrator Guide

MSTI 2 bridge-priority 4096
Dell(conf)#
Enable BPDU Filtering Globally
The enabling of BPDU Filtering stops transmitting of BPDUs on the operational port fast enabled ports by
default.
When BPDUs are received, the spanning tree is automatically prepared. By default global bpdu filtering is
disabled.
Enable BPDU Filter globally to filter transmission of BPDU port fast enabled interfaces.
PROTOCOL MSTP mode
edge-port bpdu filter default
Figure 83. BPDU Filtering Enabled Globally
Modifying the Interface Parameters
You can adjust two interface parameters to increase or decrease the probability that a port becomes a
forwarding port.
• Port cost is a value that is based on the interface type. The greater the port cost, the less likely the port
is selected to be a forwarding port.
• Port priority influences the likelihood that a port is selected to be a forwarding port in case that several
ports have the same port cost.
Multiple Spanning Tree Protocol (MSTP) 611