Stickiness by source IP not working

[cricketbuff]

I have a serverfarm which has 2 servers load balanced with round-robin. The persistence is by source IP. The problem I have is when they do load testing from 2 different IP addresses lets say 1.2.2.2 and 4.8.8.8 we see the traffic going to only server 1 . Shouldn't be going to server 2 also since we have 2 different source Ips?

[Gilles Dufour]

there is no guarantee with only 2 ip addresses that the connections will be split between the 2 servers.

Test with a bigger number of source ip addresses.

G.