OSPF design

[mautez_mah]

can anyone please recommend any book that will explain ospf design  very well , 
most of the book just talk about difference between LSAs and Areas but I need book talk about different whether have one area or many areas which one is best and why ,
many thanks 

[Joseph W. Doherty]

Generally, most books should mention that OSPF areas are for scalability.  What they do not address, because it's very variable is how large an OSPF area should be allowed.

[balaji.bandi]

check this may help you :

https://www.ciscopress.com/articles/article.asp?p=1763921&seqNum=6

[Martin L · Accepted solution]

Besides regular well-know book recommendations for CCIE studies I would look at 2 books frequently "forgotten"

Alex Zinin Cisco.IP.Routing.Packet.Forwarding.and.Intra-domain.Routing.Protocols and Ospf-Anatomy of an Internet Routing by J. Moy who I believe developed RFC for ospf protocol.

Otherwise, older books for CCNP, called CCDP ,aka Designing should be OK. 

Regards, ML
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