title: How to specify traffic percentage for every ec2 connected to ELB
body: <p>I have three EC2 instances i1, i2 and i3, and all three instances are connected to ELB, and one of the instances, <strong>i3</strong> is problematic, is it  possible to specify that 5% of traffic can go to instance i3, and the rest of the 95% can go as normal to the other i1, i2</p>