Operation Manual – VLANH3C S3100 Series Ethernet Switches Chapter 1 VLAN Overview1-91.3.3 Encapsulation FormatsTable 1-4 lists the encapsulation formats supported by some protocols. In brackets aretype values of these protocols.Table 1-4 Encapsulation formatsEncapsulation (left)Protocol (down)Ethernet II 802.3 raw 802.2 LLC 802.2SNAPIP (0x0800) Supported Not supported Not supported SupportedIPX (0x8137) Supported Supported Supported SupportedAppleTalk (0x809B) Supported Not supported Not supported Supported1.3.4 Implementation of Protocol-Based VLANS3100 series Ethernet switches assign the 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 tothe packets based on protocol types. The port in the protocol-based VLAN must beconnected to a client. However, a common client cannot process VLAN-tagged packets.In order that the client can process the packets out of this port, you must configure theport in the protocol-based VLAN as a hybrid port and configure the port to removeVLAN tags when forwarding packets of all VLANs.
