VLAN Commands
4-189
4
Example
The following creates protocol group 1, and specifies Ethernet frames with IP and
ARP protocol types:
protocol-vlan protocol-group (Configuring Interfaces)
This command maps a protocol group to a VLAN for the current interface. Use the
no form to remove the protocol mapping for this interface.
Syntax
protocol-vlan protocol-group group-id vlan vlan-id
no protocol-vlan protocol-group group-id vlan
group-id - Group identifier of this protocol group. (Range: 1-2147483647)
vlan-id - VLAN to which matching protocol traffic is forwarded.
(Range:1-4 094)
Default Setting
No protocol groups are mapped for any interface.
Command Mode
Interface Configuration (Ethernet, Port Channel)
Command Usage
When creating a protocol-based VLAN, only assign interfaces via this
command. If you assign interfaces using any of the other VLAN commands
(such as vlan on page4-180), these interfaces will admit traffic of any protocol
type into the associated VLAN.
When a frame enters a port that has been assigned to a protocol VLAN, it is
processed in the following manner:
- If the frame is tagged, it will be processed according to the standard rules
applied to tagged frames.
- If the frame is untagged and the protocol type matches, the frame is
forwarded to the appropriate VLAN.
- If the frame is untagged but the protocol type does not match, the frame is
forwarded to the default VLAN for this interface.
Console(config)#protocol-vlan protocol-group 1 add frame-type ethernet
protocol-type ip
Console(config)#protocol-vlan protocol-group 1 add frame-type ethernet
protocol-type arp
Console(config)#