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User’s Manual of SGSD-1022 / SGSD-1022P
SGSW-2840 / SGSW-2840P
203
■ Programmable Protocol
Object Description
• Programmable
Protocol
The following options are available:
• Frame Type
The following frame types are available:
- Ethernet
- LLC_other
- RFC_1042
- SNAP_8021H
• Protocol Type
User defined.
Traffic which matches IP Protocol Ethernet Frames is mapped to the VLAN (VLAN 1) that
has been configured with the switch’s administrative IP. IP Protocol Ethernet traffic must not
be mapped to another VLAN or you will lose administrative network connectivity to the
switch. If lost in this manner, network access can be regained by removing the offending
Protocol VLAN rule via the console. Alternately, the switch can be power-cycled, however all
unsaved configuration changes will be lost.
4.8.4.2 Protocol VLAN Port Configuration
Use the Protocol VLAN Port Configuration menu to map a Protocol VLAN Group to a VLAN for the currently selected port or
trunk.
Command Usage
• Before assigning a protocol group and associated VLAN to a port or trunk, first select the required interface from the
scroll-down list and click Query.
• 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.