3Com 10014299 manual Applying dynamic address mapping to the sub-interface

252 CHAPTER 17: CONFIGURING FRAME RELAY

Configure interface link layer protocol to	link-protocol fr [ ietf
Frame Relay	nonstandard ]
Create frame-relay sub-interface and enter	interface type
the sub-interface view	number.subinterface-number
	[multipoint point-to-point ]
Delete the frame-relay sub-interface	undo interface type
	number.sub-number

bConfigure virtual circuit of Frame Relay sub-interface

In interface view, perform the following task to configure the virtual circuit of

Frame Relay sub-interface.

Table 283 Configure virtual circuit of Frame Relay sub-interface

Operation	Command
Configure a virtual circuit	fr dlci dlci-number
Remove a virtual circuit	undo fr dlci dlci-number

cConfigure Sub-Interface PVC and Establish Address Mapping

Since there is only one peer address for point-to-point sub-interface, the peer address is determined when a PVC is configured for the sub-interface. For point-to-multipoint sub-interface, the peer address and local DLCI can be determined by configuring static address mapping or using inverse address resolution protocol.

Establishing static address mapping of Frame Relay sub-interface

Table 284 Establish static address mapping

Operation	Command
Establish address mapping	fr map { ip ipx }
	protocol-address dlci dlci [
	broadcast ] [ nonstandard ietf ]
	[ logic-channel channel_number ] [
	nocompress compression vj ] [
	compression frf9 ]
Delete an address mapping	undo fr map { ip ipx }
	protocol-address dlci dlci

Applying dynamic address mapping to the sub-interface

Table 285 Configure Frame Relay dynamic address mapping

Operation	Command
Enable dynamic address mapping	fr inarp [ { ip ipx } [ dlci ] ]
Disable dynamic address mapping	undo fr inarp [ { ip ipx } [ dlci
	] ]

By default, all the sub-interfaces are enabled to use dynamic inverse-arp.

8Configure Frame Relay PVC Switching

Router routers can be used as Frame Relay switches to provide the function of Frame Relay PVC switching. There are two ways to configure the Frame Relay switching: configuring the Frame Relay switched route or configuring the Frame Relay switched PVC.

a Enable the Frame Relay switching