Allied Telesis AT-9900, RAPIER I, X900-48FE, AT-8900, AT-8700XL, AT-8600 Ospf backward compatibility

92	Open Shortest Path First Enhancements					Release Note
When you change this
set ospf parameter...		From...	To...	Then OSPF...
staticexport		off	on	adds a static route redistribution definition,
				if asexternal is set to on or nssa
		on	off	deletes the static route redistribution definition,
				if asexternal is set to on or nssa
asexternal		off	on or nssa	adds a static route redistribution definition,
				if staticexport is set to on
		Similarly, adding or deleting a route redistribution definition changes the
		setting of the corresponding bgpimport, rip, or staticexport parameter, as
		summarised in the following table.
When you do this...			Then this parameter...		Changes from...	To...
add a BGP route redistribution definition			bgpimport		off	on
delete a BGP route redistribution definition			bgpimport		on	off
add a RIP route redistribution definition			rip		off or export	import or both
delete a RIP route redistribution definition			rip		import or both	off or export
add a static route redistribution definition			staticexport		off	on
delete a static route redistribution definition			staticexport		on or nssa	off

OSPF backward compatibility

These changes are also reflected in the output of the show config and create config commands:

■If bgpimport is set to on in the set ospf command, then bgpimport will be set to off (default) in the output, and the corresponding BGP redistribution definition will be added to the output.

■If rip is set to import in the set ospf command, then rip will not written to the output (default is off). Instead, the corresponding RIP redistribution definition will be written to the output.

■If rip is set to both in the set ospf command, then rip will be set to export in the output, and the corresponding RIP redistribution definition will be added to the output.

■If staticexport is set to on in the set ospf command, then staticexport will be set to off (default) in the output, and the corresponding static redistribution definition will be added to the output.

In previous releases, the asexternal parameter of the set ospf command controlled both the importation of non-OSPF interface routes and the advertisement of external routes. If you set asexternal to on or nssa, OSPF imported interface routes for interfaces that were not OSPF interfaces, with the following exceptions:

■Routes that were Local and within an active OSPF range.

■Routes that exactly matched an OSPF host or stub network.

These routes were advertised as a stub link in the router LSA of the area to which the active range belonged.

As of this software version, the asexternal parameter no longer imports and redistributes any non-OSPF interface routes. If you need to import and redistribute non-OSPF interface routes into OSPF you must explicitly add an

Software Version 2.8.1 C613-10477-00 REV B