512 VLAN Commands
•
access
— An access port connects to a single end station belonging to a single VLAN. An
access port is configured with ingress filtering enabled and will accept either an untagged
frame or a packet tagged with the access port VLAN. An access port only egresses untagged
packets.
•
trunk
— Trunk port connects two switches. A trunk port may belong to multiple VLANs. A
trunk port accepts only packets tagged with the VLAN IDs of the VLANs to which the trunk is
a member. A trunk only egresses tagged packets.
•
general
— Full 802.1q support VLAN interface. A general mode port may be a combination of
both trunk and access ports. It is possible to fully configure all VLAN features on a general
mode port.
Default Configuration
The default for this command is access.
Command Mode
Interface Configuration (Ethernet, port-channel) mode
User Guidelines
This command has no user guidelines.
Example
The following example configures 1/g8 to access mode.
console(config)#interface ethernet 1/g8
console(config-if-1/g8)#switchport mode access
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.
Syntax
switchport protected
groupid
no switchport protected
•
groupid-
-Identifies which group this port will be protected in. (Range: 0-2)
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