I know that if we use source IP based predictors, the ACE would use a hash of the source IP to load balance the traffic. Is there is capability to make this process deterministic. In other words, I have tthree client subnets accessing the web servers on the same VIP. I want the traffic from subnet 1 to go to server 1 and traffic from subnets 2 and 3 to be loadbalanced to the rest of the servers
Session persistence (stickiness) based on client source IP address or HTTP cookies are recommended to be configured on the Cisco ACE for this flow.
IP Address Stickiness
Here can be the sample configuration:
limit-resource all minimum 0.00 maximum unlimited
limit-resource sticky minimum 20.00 maximum equal-to-min
rserver host webserver1
ip address 10.10.10.1
rserver host webserver2
ip address 10.10.10.2
rserver host webserver3
ip address 10.10.10.3
serverfarm host werbsrv1only
rserver webserver1 1000
serverfarm host werbsrv123
rserver webserver1 1000
rserver webserver2 1000
rserver webserver3 1000
ACE receives requests to the VIP on port 80 and translates them to port 1000 using the server farm configuration shown above.
Thanks for the detailed response. Still a small detail is not clear to me. hope you wouldn't mind me asking another question.
I see that the server farms are defined with sticky configurations based on source ip and the netmask. But with this do i have specific control over to which serverfarm a specific clients request would go to.
For example, i need client subnet 192.168.1.0/24 to go to rserver1 and client subnet 192.168.2.0 to be load balanced to rserver2 and rserver3. clients in both subnets are sending packets to the same destination VIP
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