Latency in an ACS environment for replication

[umahar]

Already asked this question related to ACS here. 

https://community.cisco.com/t5/policy-and-access/latency-in-an-acs-environment-for-replication/m-p/3787392

What is the maximum acceptable latency between various ACS nodes for replication traffic ?

Eg. For ISE it is 300 ms

[umahar]

Hi,

What is the maximum acceptable latency between various ACS nodes for replication traffic ?

[Damien Miller]

I scoured documents and deployment guides because I saw your other post, I can't find it documented publicly. If it's like older versions of ISE, then it's less than 200 ms.

From past customer deployments that I have migrated off of, there were some nodes with 250 ms rtt to the primary. No issues in either of those two fringe cases, relatively large 5k+ NAD deployments too.

Maybe someone in the BU knows and can fill us in.

[umahar]

Thanks Damien for taking a look at it. 

I also couldn't find any document related to this.

[ldanny · Accepted solution]

Your right it doesn't seem to be documented but speaking with some of our ACS vintage gurus :) they say from experience it would be less then 200ms

Absolute maximum is 250ms

hope that helps.