Dell Force10 MXL Blade - Spanning-Tree Pvst

456 | Per-VLAN Spanning Tree Plus (PVST+)
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spanning-tree pvst
Configure a PVST+ interface with one of the following settings: edge port with optional Bridge Port
Data Unit (BPDU) guard, BPDU filter, port disablement if an error condition occurs, port priority or
cost for a VLAN range, or root guard.
Syntax
spanning-tree pvst {edge-port [bpduguard [shutdown-on-violation] | bpdufilter] | err-disable | vlan
vlan-range {cost number | priority value} | rootguard}
Parameters
Defaults
Not Configured
Command Modes
INTERFACE
Command
History
Usage
Information
The BPDU guard option prevents the port from participating in an active STP topology in case a
BPDU appears on a port unintentionally, or is misconfigured, or is subject to a DOS attack. This option
places the port into an error disable state if a BPDU appears, and a message is logged so that the
administrator can take corrective action. When BPDU guard and BPDU filter is enabled on the port,
then BPDU filter takes the highest precedence.
edge-port
Enter the keyword edge-port to configure the interface as a PVST+ edge port.
bpduguard
(OPTIONAL) Enter the keyword bpduguard to disable the port when it receives a
BPDU.
shutdown-on-vi
olation
(OPTIONAL) Enter the keyword shutdown-on-violation to hardware disable an
interface when a BPDU is received and the port is disabled.
bpdufilter
(OPTIONAL) Enter the keyword bpdufilter to stop sending and receiving BPDUs on
port fast enabled ports.
err-disable
Enter the keyword err-disable to enable the port to be put into error-disable state
(EDS) if an error condition occurs.
vlan vlan-range
Enter the keyword vlan followed by the VLAN number(s).
Range: 1 to 4094
cost number Enter the keyword cost followed by the port cost value.
Range: 1 to 200000
Defaults:
10-Gigabit Ethernet interface = 2000
40-Gigabit Ethernet interface = 1400
Port Channel interface with one 10-Gigabit Ethernet = 2000
Port Channel with two 10-Gigabit Ethernet = 1800
Port Channel with two 40-Gigabit Ethernet = 600
priority value Enter the keyword priority followed the Port priority value in increments of 16.
Range: 0 to 240. Default: 128
rootguard
Enter the keyword rootguard to enable root guard on a PVST+ port or port-channel
interface.
Version 8.3.16.1 Introduced on MXL 10/40GbE Switch IO Module