H3C Technologies H3C WX3000 Series Unified Switches - Manual (Page 81)

10-8
Table 10-1 Encapsulation formats
Encapsulation
Protocol
Ethernet II 802.3 raw 802.2 LLC 802.2 SNAP
IP (0x0800) Supported Not supported Not supported Supported
IPX (0x8137) Supported Supported Supported Supported
AppleTalk (0x809B) Supported Not supported Not supported Supported
Implementation of Protocol-Based VLAN
The switching engines of the devices assign the packet to the specific VLAN by matching the packet
with the protocol template.
The protocol template is the standard to determine the protocol to which a packet belongs. Protocol
templates include standard templates and user-defined templates:
z
The standard template adopts the RFC-defined packet encapsulation formats and values of some
specific fields as the matching criteria.
z
The user-defined template adopts the user-defined encapsulation formats and values of some
specific fields as the matching criteria.
After configuring the protocol template, you must add a port to the protocol-based VLAN and associate
this port with the protocol template. This port will add VLAN tags to the packets based on protocol types.
The port in the protocol-based VLAN must be connected 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 the port in the protocol-based VLAN as a hybrid port and configure the port to remove VLAN
tags when forwarding packets of all VLANs.
For the operation of removing VLAN tags when the hybrid port sends packets, refer to Port Basic
Configuration in H3C WX3000 Series Unified Switches Switching Engine Configuration Guide.