Advanced: OSPF Algorithm

From: Pierre-Alex Guanel (pierreg@planetkc.com)
Date: Wed Jul 07 2004 - 15:23:06 GMT-3


How does OSPF add the cost of the links?

>From what I have seen, it does not seem like the cost in the packet gets
updated from hop to hope.

The process of flooding just passes the original lsa along, unaltered.

>From what I read, the OSPF algorithm knows how to find all the costs and add
them up from the LSA using the Djakstra algorithm.

Yes I know its all explained in RFC 2178 ...section 16, but I am looking at
a simple explaination.

thanks,

Pierre



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