Choosing between ISIS and OSPF

[prakashcsco]

Dear folks,

what are the choosing criteria between ISIS and OSPF in carrier networks.

what are pros and cons of ISIS when compared to OSPF

and Finally i am trying to study ISIS which Material do u Prefer...

Thanks in Advance

[Vasilii Mikhailovskii]

Hello.

ISIS is simpler than OSPF (less options and less points of failure) in terms of design and support.

[Vinit Jain]

Other benefit with ISIS is a lot a new enhancements can be made easily by creating a new TLV and integrating it. For ISIS, there are couple of good Cisco Press books:

IP Routing on Cisco IOS, IOS XE, and IOS XR: An Essential Guide to Understanding and Implementing IP Routing Protocols

http://www.ciscopress.com/articles/article.asp?p=26850

Hope this helps.

Vinit