ECMP Preferred Route

L5 Sessionator

ECMP Preferred Route

Hi All,

 

Does anyone have the answer as to how the Palo Alto choses the "preferred route" when ECMP is configured?

 

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As per the runtime stats, the referred route for all these routes is 172.16.8.226. (* flag) Both routes in each of the three destinations have been forwarded to the FIB as per the "e" flag.

 

 

Tags (2)
L3 Networker

Re: ECMP Preferred Route

Hello,

 

I think that it depends of the load-balancing algorithm that you choose for ECMP routing.

If you use IP-Modulo (default option) you will always have same route as preferred route for a given source / destination couple.

 

Regards,

 

Laurent

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