John Moy, the author of many OSPF RFC's, has a book, may be an old one by
now, that covers OSPF in depth...
Z
>From: "Chuck Larrieu" <[EMAIL PROTECTED]>
>Reply-To: "Chuck Larrieu" <[EMAIL PROTECTED]>
>To: "Ralph Shafer" <[EMAIL PROTECTED]>, <[EMAIL PROTECTED]>
>Subject: RE: Not So Stubby
>Date: Wed, 10 Jan 2001 22:57:40 -0800
>
>As tempted as I am to state that any area in proximity to me is a "stud"
>area...
>
>The NSSA is stub area that is permitted to import external routes into an
>OSPF domain. It is defined in RFC 1583, from which the following is
>excerpted:
>
>---------
>... the current definition of the OSPF protocol [1] imposes topological
>limitations which restrict simple cloud topologies from becoming OSPF stub
>areas. In particular, it is illegal for a stub area to import routes
>external to OSPF;
>
>NSSAs are defined in much the same manner as existing stub areas. To
>support
>NSSAs, a new option bit (the "N" bit) and a new type of LSA (type-7) area
>defined. The "N" bit ensures that routers belonging to an NSSA agree on its
>configuration. Similar to the stub area's use of the "E" bit, both NSSA
>neighbors must agree on the setting of the "N" bit or the OSPF neighbor
>adjacency will not form.
>-------
>
>not that I even want to think about reading another RFC tonight. But there
>is a lot of discussion in 1583 about OSPF behaviour that appears, from my
>quick glance, to actually be a bit more comprehensible than was 2328 ( OSPF
>ver 2 )
>
>HTH
>
>Chuck
>
>
>-----Original Message-----
>From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] On Behalf Of
>Ralph Shafer
>Sent: Wednesday, January 10, 2001 9:21 PM
>To: [EMAIL PROTECTED]
>Subject: Not So Stubby
>
>I am studying "Advanced Cisco Router Configuration" by Cisco Press. On
>page
>230 it states that "...you can define the area as stud, totally stub, or
>not
>so stubby." I know how to define a stub area and a totally stubby area,
>but
>how do I define a not so stubby area?
>
>--
>
>Ralph Shafer, MBA
>MCT, CCAI, CTT,
>MCSE (NT4 & WIN2K)
>MCP+I, CCNA, A+, Net+
>
>Professional Trainer
>POB 71208
>Reno, NV 89570-1208
>Home Office Phone: 775-828-0471
>Home Office e-mail: [EMAIL PROTECTED]
>
>Professor
>Truckee Meadows Community College
>Reno, NV 89512
>College Office Phone: 775-674-7550
>College e-mail: [EMAIL PROTECTED]
>
>
>
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