3Com 10014299 manual Configure Frame Relay static address mapping

250CHAPTER 17: CONFIGURING FRAME RELAY

N392, the DTE equipment will assume that the number of errors reaches the threshold, and will regard the physical path and all the virtual circuits as unusable.

The parameters at the DCE side include:

■T392DCE: Define the longest duration for the DCE equipment to wait for a status enquiry message. It should be larger than T391.

■N392DCE: The threshold for the errors that can occur in the total number of observed events at the DCE side.

■N393DCE: The total number of observed events at the DCE side.

It should be noted that N392 should be no larger than N393 and T391DTE should be smaller than its peer T392DCE.

5Configure Frame Relay Address Mapping

Frame Relay address mapping means to establish the mapping between the peer protocol address and the local DLCI. Address mapping of Frame Relay can either be configured statically or set up dynamically.

a Configure Frame Relay static address mapping

Static configuration means the manual setup of the mapping relation between the peer protocol address and local DLCI, and is usually applied when there are few peer hosts or there is a default route.

In interface view, perform the following task to configure the Frame Relay static address mapping.

Table 279 Configure Frame Relay static address mapping

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

By default, the dynamic inverse arp is enabled on all the interfaces.

After the Frame Relay static address mapping is configured, the dynamic inverse arp will be disabled automatically on the specified DLCI.

bConfigure Frame Relay dynamic inverse arp

Dynamic configuration means the mapping peer protocol address and local DLCI dynamically after running the inverse address resolution protocol (Inverse ARP), which is applicable when the peer router also supports the "inverse address resolution protocol" and network is complex.

In interface view, perform the following task to configure the dynamic inverse arp of Frame Relay.

Table 280 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, the dynamic inverse arp is enabled on the interface.