Modify Interface Parameters - Dell Force10 MXL Blade Configuration Manual

Figure 19-8. BPDU Filtering enabled globally
Task
Enable BPDU Filter globally to filter transmission of BPDU port fast
enabled interfaces.

Modify 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.
Table 19-2
Table 19-2. MSTP Default Port Cost Values
Port Cost
1000-Mb/s Ethernet interfaces
40-Gigabit Ethernet interfaces
10-Gigabit Ethernet interfaces
Port Channel with one 10-Gigabit Ethernet interface
Port Channel with one 40-Gigabit Ethernet interface
344
| Multiple Spanning Tree Protocol (MSTP)
lists the default values for port cost by interface.
Command Syntax
edge-port bpdu filter
default
Default Value
20000
1400
2000
2000
1400
Command Mode
PROTOCOL MSTP