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Forum Discussion

Infrastructur11's avatar
Infrastructur11
Icon for Nimbostratus rankNimbostratus
Jul 30, 2018

balance with 302 to a pool

Hello, coming from Cisco ACE to F5 BigIP. On ACE, I could have a VIP, a pool and then when a client connects I could send back a 302 to the client, selecting the pool-member with least-connections. t...
application delivery
BIG-IP
LTM
Stephane_Viau's avatar
Stephane_Viau
Icon for Nimbostratus rankNimbostratus
Jul 30, 2018

I see... can you try configuring your pool with least-connections algorithm, add it as default pool to your Virtual Server and then try this iRule on your Virtual Server :

 

when HTTP_REQUEST {

 

eval [LB::select]

 

HTTP::respond 302 Location http://[LB::server addr]:[LB::server port]

 

}

 

What this iRule should do is trigger the load balancing algorithm (set to least-connections on your pool) to select a server and then dynamically add the pool member's IP address and port to the 302 redirect sent to the client. Can't say I've seen this done before but I think it should work. You can replace http:// by https:// in the 302 response of course if your servers expect an encrypted connection.