Operation Manual – VLANH3C S7500 Series Ethernet Switches Chapter 1 VLAN Overview1-91.3.4 Encapsulation FormatsTable 1-4 Encapsulation formatsEncapProtocolEthernet II 802.3 raw 802.2 LLC 802.2SNAP Type valueIP Supported NotsupportedNotsupported Supported 0x0800IPX Supported Supported Supported Supported 0x8137AppleTalk Supported NotsupportedNotsupported Supported 0x809B1.3.5 Implementation of Protocol-Based VLANS7500 series Ethernet switches assign a packet to the specific VLAN by matching thepacket with the protocol template.The protocol template is the standard to determine the protocol to which a packetbelongs. Protocol templates include standard templates and user-defined templates:z The standard template adopts the RFC-defined packet encapsulation formats andvalues of some specific fields as the matching criteria.z The user-defined template adopts the user-defined encapsulation formats andvalues of some specific fields as the matching criteria.After configuring the protocol template, you must add a port to the protocol-basedVLAN and associate this port with the protocol template. This port will add VLAN tags topackets based on protocol types of the packets. The port in the protocol-based VLANneeds to be connected to a client. However, a common client cannot processVLAN-tagged packets. In order that the client can process the packets out of this port,you must configure the port in the protocol-based VLAN as a Hybrid port and configurethe port to remove VLAN tags when forwarding packets of all VLANs.Note:For the operation of removing VLAN tags when the Hybrid port sends packets, refer tothe section “Port Basic Configuration” in this manual.
