Chapter 25: Configuring Protocol-Based VLANs

The network devices required to support multiple protocols cannot be easily grouped into a common VLAN. This may require non-standard devices to pass traffic between different VLANs in order to encompass all the devices participating in a specific protocol. This kind of configuration deprives users of the basic benefits of VLANs, including security and easy accessibility.

To avoid these problems, you can configure this switch with protocol-based VLANs that divide the physical network into logical VLAN groups for each required protocol. When a frame is received at a port, its VLAN membership can then be determined based on the protocol type being used by the inbound packets.

Command Usage

To configure protocol-based VLANs, follow these steps:

1.First configure VLAN groups for the protocols you want to use (page 23-6). Although not mandatory, we suggest configuring a separate VLAN for each major protocol running on your network. Do not add port members at this time.

2.Create a protocol group for each of the protocols you want to assign to a VLAN using the Protocol VLAN Configuration page.

3.Then map the protocol for each interface to the appropriate VLAN using the Protocol VLAN Port Configuration page.

Configuring Protocol Groups

Create a protocol group for one or more protocols.

Command Attributes

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

Frame Type1 – Frame type used by this protocol. (Options: Ethernet, RFC_1042, LLC_other)

Protocol Type – The only option for the LLC_other frame type is IPX_raw. The options for all other frames types include: IP, IPv6, ARP, RARP, and user-defined (0801-FFFF hexadecimal).

1.SNAP frame types are not supported by this switch due to hardware limitations.

25-1

Page 229
Image 229
Accton Technology ES4524D, ES4548D, 24/48-Port manual Configuring Protocol-Based VLANs, Configuring Protocol Groups