set protocols spanning-tree pvst interface root-guard

The set protocols spanning-tree pvst interface root-guard command is used to enable or disable root guard function for PVST.

Command Syntax

set protocols spanning-tree pvst interface <interface-name> root-guard <true | false>

Parameter

Usage Guidelines

If a port is enabled with the root guard function, its port role on all instances can only be the designated port. Once the port that is enabled with root guard receives BPDUs with a higher priority, the port enters the Discarding state and does not forward packets. If the port does not receive any BPDUs with a higher priority for a long time, the port automatically returns to the Forwarding state.

Example

•   Enable root guard function for PVST on port ge-1/1/1.

admin@Xorplus# set protocols spanning-tree pvst interface ge-1/1/1 root-guard true