3Com 5500-EI PWR Install Manual

Also see for 5500-EI Series: Product guide Datasheet Product guide Datasheet Configuration guide

Contents

3Com 5500-EI PWR Install Manual Manual pdf 81 page image

1-10Implementation of Protocol-Based VLANThe Ethernet switches assign the packet to the specific VLAN by matching the packet with the protocoltemplate.The protocol template is the standard to determine the protocol to which a packet belongs. Protocoltemplates include standard templates and user-defined templates:z The standard template adopts the RFC-defined packet encapsulation formats and values of somespecific fields as the matching criteria.z The user-defined template adopts the user-defined encapsulation formats and values of somespecific fields as the matching criteria.After configuring the protocol template, you must add a port to the protocol-based VLAN and associatethis 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 cannotprocess VLAN-tagged packets. In order that the client can process the packets out of this port, you mustconfigure the port in the protocol-based VLAN as a hybrid port and configure the port to remove VLANtags when forwarding packets of all VLANs.