spanning-tree tcn-guard

Description

Disables propagation of topology change notifications (TCNs) to other STP ports. Use this when you do not want topology changes to be noticed by peer devices.

The没有这个命令的形式,使传播的pology changes. By default, propagation is disabled.

Command context

config-if

Authority

Administrators or local user group members with execution rights for this command.

Examples

Enablingtcn-guard,which disables propagation of topology changes:

switch(config-if)#spanning-tree tcn-guard

Disablingtcn-guard, which enables propagation of topology changes:

switch(config-if)#没有spanning-tree tcn-guard