CANOGA PERKINS CanogaOS Command Reference - Manual (Page 143)

CanogaOS Command Line Reference Revision 1.02
Proprietary & Confidential Canoga Pertkins Metro Ethernet Switches Page 143 of 855
Command Mode
Interface mode
Default
Usage
Use this command to set the BPDU filter value for individual ports. When the enable or disable
parameter is used with this command, this configuration takes precedence over bridge configuration.
However, when the default parameter is used with this command, the bridge level BPDU filter
configuration takes effect for the port. Use the bridge spanning-tree portfast bpdu-filter command to
configure the BPDU filter feature on a bridge.
Use the show spanning tree command to display administratively configured, and currently running
values, of the BPDU filter parameter for the bridge and port.
Examples
Switch# configure terminal
Switch(config)# interface eth-0-1
Switch(config-if)# spanning-tree edgeport bpdu-filter
Related Commands
7.20 spanning-tree guard root
Use this command to enable the Root Guard feature for the port. This feature disables reception of
superior BPDUs. Use the no parameter with this command to disable the root guard feature for the
port.
Command Syntax
spanning-tree guard root
no spanning-tree guard root
Command Mode
Interface mode
Default
Root guard is disabled.
Usage
The Root Guard feature makes sure that the port on which it is enabled is a designated port. If the Root
Guard enabled port receives a superior BPDU, it goes to a Listening state (for STP) or discarding state
(for RSTP and MSTP).