03-13-2008 08:28 AM - edited 03-03-2019 09:07 PM
Hi,
I would like to understand the basics of the SPF algorithm and the specially the partial SPF as its used in IS-IS. Any pointers?
Goldman
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03-13-2008 08:40 AM
Hello,
In IS-IS this partial SPF is usually named as Partial Route Computation (PRC):
http://www.cisco.com/en/US/docs/ios/12_4/ip_route/configuration/guide/1chisis.html#wp1009160
http://routingfreak.wordpress.com/2008/03/06/the-complete-and-partial-spf-in-is-is/
Kind Regards,
M.
03-13-2008 08:40 AM
Hello,
In IS-IS this partial SPF is usually named as Partial Route Computation (PRC):
http://www.cisco.com/en/US/docs/ios/12_4/ip_route/configuration/guide/1chisis.html#wp1009160
http://routingfreak.wordpress.com/2008/03/06/the-complete-and-partial-spf-in-is-is/
Kind Regards,
M.
03-13-2008 05:41 PM
Hey Thanks Marikakis.
The link to http://routingfreak.wordpress.com was extremely useful as it had more information on SPF besides the link you gave me.
http://routingfreak.wordpress.com/2008/03/06/shortest-path-first-algorithm-demystified/
.. and the difference between SPF run for ISIS and OSPF.
http://routingfreak.wordpress.com/2008/03/04/shortest-path-first-calculation-in-ospf-and-is-is/
Thanks a lot!
03-14-2008 03:33 AM
I recently came across this Routing Freak page and I find it pretty cool! It is interesting to explore the information there. It includes many more things about routing explained nicely by someone involved in routing protocol development.
Have fun there! :-)
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