Installation manual

4-265
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protocol-vlan protocol-group (Configuring VLANs)
This command globally maps a protocol group to a VLAN. Use the no form to remove the
protocol mapping.
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: 1-4094)
Default Setting
No protocol groups are mapped to any VLANs.
Command Mode
Global Configuration
Command Usage
• When creating a protocol-based VLAN, do not assign interfaces to the protocol
VLAN via any of the standard VLAN commands. If you assign interfaces using any
of the other VLAN commands (such as vlan on page 4-242), the switch will admit
traffic of any protocol type into the associated VLAN.
• A maximum of 20 protocol VLAN groups can be defined on the switch.
• When a frame enters the switch that has protocol VLANs configured, 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 the interface.
Example
The following example maps traffic matching the protocol type specified in protocol group
2 to VLAN 2.
show protocol-vlan protocol-group
This command shows the frame and protocol type associated with protocol groups.
Syntax
show protocol-vlan protocol-group [group-id]
group-id - Group identifier for a protocol group. (Range: 1-2147483647)
Console(config)#protocol-vlan protocol-group 2 vlan 2
Console(config)#