Load balance to node in the same DC where VIP is active
Hi, We have following (simplified) scenario: Two data centers: DC1, DC2. Two F5 LTMs, one LTM in each DC, they run in active/standby mode and have one VIP configured. Two application servers, one server in each DC, they both should serve the VIP. Now the requirement is to send all traffic to just one server which lives in the same DC as where the VIP is currently active. So if the VIP is currently owned by DC1 LTM, all requests should be forwarded to server in DC1. Server in DC2 should be only used if server in DC1 becomes unavailable. If there is VIP failover and it suddenly is listening on the LTM in DC2, all requests should be forwarded to server in DC2 (server in DC1 only as a backup in case of server DC1 failure). What is the best way to achieve this? LTM policies, iRules? I don't know what the factor for the decision should be - something about the VIPs real IP, or the active/standby status of the LTM itself and somehow include it in the iRule?