Enable Bpdu Filtering Globally - Dell Force10 MXL Blade Configuration Manual

To change PVST+ parameters, use the following commands on the Root Bridge:
Task
Change the forward-delay parameter.
• Range: 4 to 30
• Default: 15 seconds
Change the hello-time parameter.
Note: With large configurations (especially those with more
ports), Dell Force10 recommends that you increase the
hello-time.
Range: 1 to 10
Default: 2 seconds
Change the max-age parameter.
Range: 6 to 40
Default: 20 seconds
To view the values for the global PVST+ parameters, use the
(Figure 23-4).

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.
408
| Per-VLAN Spanning Tree Plus (PVST+)
Command Syntax
vlan forward-delay
vlan hello-time
vlan max-age
show spanning-tree pvst
Command Mode
PROTOCOL PVST
PROTOCOL PVST
PROTOCOL PVST
command