I'd like to setup a group of routers to be in an OSPF sub-area. The sub-area will connect to the backbone via one or two ABRs. All other routers in the sub-area will be ASBRs. The ABRs will not be ASBRs.
>From a design perspective, I want to put these routers into a sub-area so that I can limit the amount of routing information they need to be aware of. Further, I'd like to limit what information the backbone routers see regarding these ASBRs. Stub and Totally Stubby areas are not an option since the sub- areas contains ASBRs. Configuring the sub-area as an NSSA would help limit the number of routes in the sub-area (via the ABR nssa no-summary command) as the sub-area will have just a default, intra-area, and type 7 routes from the redist process. This is good. When the ABR gets the Type 7 LSAs from the ASBRs, it will translate them into type 5s and flood them throughout the backbone. While it appears that the backbone routers don't see the ASBRs (via type 4 LSAs from the ABR), I'd like to determine if it's possible to configure the ABR to take the type 7s and include these routes instead in the ABR's type 3 LSA? This would prevent the backbone routers from seeing the type 5s. Is this possible? Or, is it possible to perform redist from RIP into OSPF, but to configure this router to put the routes learned via RIP into it's type 1 LSA (ie do a redist but prevent the router from being an ASBR) Thanks for any info. Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=50608&t=50608 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
