CLI Guide

Layer 2 Switching Commands 438
Example
The following example configures Gigabit Ethernet port 1/0/5 to advertise
100-Mbps operation only via auto-negotiation.
console(config)#interface gigabitethernet 1/0/5
console(config-if)#speed auto 100
Command History
The speed 10000 syntax was introduced in the 6.3.6 release.
The 2500 and 5000 speeds were introduced in the 6.3.5 release. The
description was updated in the 6.4 release.
Syntax updated in firmware release 6.6.1.
switchport protected
Use the switchport protected command in Interface Configuration mode to
configure a protected port. The groupid parameter identifies the set of
protected ports to which this interface is assigned. You can only configure an
interface as protected in one group. You are required to remove an interface
from one group before adding it to another group.
Port protection occurs within a single switch. Protected port configuration
does not affect traffic between ports on two different switches. No traffic
forwarding is possible between two protected ports. Ports in a protected group
will not forward traffic to other ports in the group.
Syntax
switchport protected groupid
no switchport protected
• groupid--Identifies which group this port will be protected in. (Range: 0-2)
Default Configuration
No protected switchports are defined.
Command Mode
Interface Configuration (Ethernet) mode