From: keith tokash (ktokash@hotmail.com)
Date: Tue Jul 08 2008 - 19:43:52 ART
I had constant problems with this until I saw someone (whose name I won't
mention but sounds like "bartick") draw a diagram representing all the area
types. I visio'd it up but as it was a direct copy of someone else's material
I wouldn't be able to share it. Besides, the learning happened in the
drawing, not the staring. So if you can draw a few circles, with the center
circle representing area 0 surrounded by a different area type, then draw out
which LSA types will be seen in each area from every particular area, it
really clears the whole mess up. I actually blogged about this a little
because the problem with learning OSPF is that you have to separate areas,
network types, and LSAs from each other, learn each facet individually, then
put them back together. And the only way I really did that was to start
thinking of OSPF as a set of databases with a method of dissemination and
syncronization build around it, which we call the protocol.
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> From: jscrivener@ipexpert.com
> To: swm@emanon.com; ashwani.ranpise@gmail.com; ccielab@groupstudy.com
> Subject: RE: Explain OSPF LSA types
> Date: Tue, 8 Jul 2008 18:35:40 -0400
>
> Yep, I'd have to agree with Scott.
>
> Doyle's books (particularly Routing TCP/IP Vol 1 Sec. Ed) are some of the
> best written textbooks I've ever read. He clearly and comprehensively
builds
> up examples that will walk you through the fundamental knowledge required.
>
> If you're planning on doing your R&S lab I highly recommend you read at
> least Vol 1 (and Vol 2 too if you get the time) cover to cover. They're
also
> a brilliant reference book too. I still mourn over having to sell my copies
> before I relocated...
>
> Cheers,
>
> Jared Scrivener CCIE2 #16983 (R&S, Security), CISSP
> Technical Instructor - IPexpert, Inc.
> Telephone: +1.810.326.1444
> Fax: +1.810.454.0130
> Mailto: jscrivener@ipexpert.com
> Blog: jaredscrivener.com
>
> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
> Scott Morris
> Sent: Tuesday, 8 July 2008 6:03 PM
> To: 'Ashwani ranpise'; 'Cisco certification'
> Subject: RE: Explain OSPF LSA types
>
> The RFC are a little rough place to start out! Good information, but not
an
> easy read!
>
> I'd suggest checking out Doyle's books (Routing TCP/IP Vol 1 & 2).
>
>
> Scott Morris, CCIE4 #4713, JNCIE-M #153, JNCIS-ER, CISSP, et al.
> CCSI/JNCI-M/JNCI-ER
> Senior CCIE Instructor
>
> smorris@internetworkexpert.com
>
>
>
> Internetwork Expert, Inc.
> http://www.InternetworkExpert.com
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>
> Knowledge is power.
> Power corrupts.
> Study hard and be Eeeeviiiil......
>
>
> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
> Ashwani ranpise
> Sent: Tuesday, July 08, 2008 5:32 PM
> To: Cisco certification
> Subject: Explain OSPF LSA types
>
> Hello Experts,
>
> Can someone explain OSPF LSA types ? Which LSA type will flow from one area
> to another or who will generate different types of LSA? I was reading RFC
> 2328 OSPF Ver2 & I couldn't understand how & who will generate these LSA's.
> Can some one give me an example or small LAB for this?
>
> Any help will be appreciated.
>
> Thanks in advance.
>
> Ashwani
>
>
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