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OPSF LSA

nivetha01
Level 1
Level 1

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?

1 Reply 1

Akash Agrawal
Cisco Employee
Cisco Employee

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

 

--Pls be kind to rate helpful posts--

 

Regards,

Akash

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