ZyXEL Communications MES3500-24F 用户手册

 Chapter 29 Layer 2 Protocol Tunneling

MES3500-24/24F User’s Guide

Click Advanced Application > Layer 2 Protocol Tunneling in the navigation panel to display the 
screen as shown. 

Advanced Application > Layer 2 Protocol Tunneling 

The following table describes the labels in this screen. 

Advanced Application > Layer 2 Protocol Tunneling 

Active

Select this to enable layer-2 protocol tunneling on the Switch.

Destination 
MAC Address

Specify an MAC address with which the Switch uses to encapsulate the layer-2 protocol 
packets by replacing the destination MAC address in the packets.

Note: The MAC address can be either a unicast MAC address or multicast MAC address. If 

you use a unicast MAC address, make sure the MAC address does not exist in the 
address table of a switch on the service provider’s network. 

Note: All the edge switches in the service provider’s network should be set to use the same 

MAC address for encapsulation.

Port

This field displays the port number.

*

Use this row to make the setting the same for all ports. Use this row first and then make 
adjustments on a port-by-port basis. 

Note: Changes in this row are copied to all the ports as soon as you make them.

CDP

Select this option to have the Switch tunnel CDP (Cisco Discovery Protocol) packets so that 
other Cisco devices can be discovered through the service provider’s network.