3Com 10014299 manual Configure Frame Relay over Other Protocols, Configure Frame Relay over IP

Configure Frame Relay over Other Protocols 269

Configure Frame Relay over Other Protocols

Frame Relay over IP IP networks are used to carry the Frame Relay data to interconnect the Frame Relay networks. In the technique of Frame Relay over IP, a GRE tunnel is established between the Frame Relay networks at both ends of IP, and the Frame Relay data are carried over IP. The application of Frame Relay over IP is illustrated in the following figure:

Figure 88 Typical application of Frame Relay over IP

	IP Network
Frame Relay	Frame Relay
Network	Network

Configure Frame Relay over IP

1Configure tunnel interface

Create a tunnel interface in all views or enter the tunnel interface view to perform the following configurations.

Table 311 Configure a tunnel interface

Operation	Command
Create a tunnel interface	interface tunnel
	tunnel-number
Specify a source address for the tunnel interface	source ip-address
Specify a destination address for the tunnel interface	destination ip-address

In addition, the user can make the configurations, such as packet mode, ID keyword, for the tunnel interface. The tunnel interface configuration details will not be covered here. Please read the related chapters in Operation manual - VPN for reference.

2Configure Frame Relay Switching

Enable Frame Relay switching in system view and configure Frame Relay switched routes in serial interface view.

Table 312 Configure Frame Relay switching

Operation	Command
Enable Frame Relay switching	fr	switching
Configure a Frame Relay switched route	fr	dlci-switch in-dlci
	interface tunnel number
	out-dlci

If the specified tunnel interface does not exist when implementing configuration, the system will automatically create a tunnel interface. However, the Frame Relay switched route can take effect only after the source address, destination address, and IP address have been configured for the tunnel interface.