OPSF LSA

[nivetha01]

Hi All,

Can any one let me know the answer for the below Question?

If same route received through different LSA's. what will be the order of preference?

[Akash Agrawal]

Hi,

Please check below links

When there are multiple routes available to the same network with different route types, routers use this order of preference (from highest to lowest):

1. Intra-area routes.  (LSA1 and 2)

2. Inter-area routes.  (LSA3)

3. External Type-1 routes. (LSA5 Type-1)

4. External Type-2 routes. (LSA5 Type-2)

http://www.networkworld.com/article/2344467/cisco-subnet/how-does-ospf-select-the-best-route-on-cisco-routers-and-does-load-balancing-work-acros.html

https://supportforums.cisco.com/discussion/10223596/ospfany-preference-higher-cost-intra-area-route-over-inter-area-route

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Regards,

Akash