25 Configuring Protocol-Based VLANs

Web – Click VLAN, Protocol VLAN, Configuration. Enter a protocol group ID, frame type and protocol type, then click Apply.

Figure 25-1 Protocol VLAN Configuration

CLI – The following creates protocol group 1, and then specifies Ethernet frames with IP and ARP protocol types.

Console(config)#protocol-vlan protocol-group 1

 

add

frame-type

ethernet protocol-type ip

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Console(config)#protocol-vlan protocol-group 1

 

add

frame-type

ethernet protocol-type arp

 

Console(config)#

 

 

 

 

 

Mapping Protocols to VLANs

Map a protocol group to a VLAN for each interface that will participate in the group.

Command Usage

When creating a protocol-based VLAN, only assign interfaces using this configuration screen. If you assign interfaces using any of the other VLAN menus such as the VLAN Static Table (page 23-7)or VLAN Static Membership by Port menu (page 23-9), 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.

Command Attributes

Interface – Port or trunk identifier.

Protocol Group ID – Group identifier of this protocol group. (Range: 1-2147483647)

VLAN ID – VLAN to which matching protocol traffic is forwarded. (Range: 1-4093)

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Accton Technology 24/48-Port, ES4548D, ES4524D manual Mapping Protocols to VLANs, 54-1