BigIP behaving as an intelligent DNS server. Probe before answering.
Hello,
I come across a situation where huge data traffic must be balanced between servers, but I do not want the BigIP to suffer from it. (neither I wish an asynchronous routing)
Imagine a set of 20 servers, that can be picked by a client, indifferently. DNS Round Robin would be a solution. but if one of the servers is down. DNS server cannot tell.
The BIGIP has the intelligence to probe servers (healthmonitor). Probe before answering to a DNS query would be the solution.
++ client -> query -> bigIP
++ bigIP -> probe -> 20 servers
++ 19 servers -> ok > BIgIP
++ BigIP -> list of 19 servers -> client
Only answering to DNS query would, let the BIgIP out of the real data traffic.
From past reading I see that GTM is capable of this. But I believe the BigIP can do this to. The task is actually pretty easy.
Any iRule iApp or already written solution to achieve this? Thanking you in advance Alberto