User-Defined Protocols in Protocol-Based VLANs

You can create protocol-based VLANs with a user-defined protocol for integration into existing networks where nonstandard protocols are used. When the usrDefined button is selected, the Insert VLAN screen appears.

In the UserDefinedPID field, enter the PID of the protocol in the format: 0x (protocol type in decimal value). The 16-bit PID assigned to a protocol-based VLAN specifies either an Ethertype, a DSAP/SSAP, or a SNAP PID, depending on whether the frame encapsulation is Ethernet 2, 802.2, or LLC-SNAP, respectively.

Refer to the section on user-defined protocol in Networking Concepts for the Accelar 1000 Series Routing Switch - Software Release 2.0 for more information about this topic, to see the actual values and how they are assigned.

The following PIDs are not valid:

• PID0x0000 through 0x05dc: overlap with the 802.3 frame length.
• PIDs of predefined protocols (for example, IP, IPX, AppleTalk).
• PID 0x8100: reserved by 802.1Q to identify tagged frames.
• PID0x9000: used by the diagnostic loopback frames.
• PID0x8808: used by 802.3x pause frames.
• PID0x4242: overlaps with the BPDU DSAP/SSAP.