Forum Discussion

Jason_Hook_4092's avatar
Jason_Hook_4092
Icon for Nimbostratus rankNimbostratus
Oct 28, 2013

Traffic experience during during a Default Pool change.

I have a need to change the default pool on an active VIP.   What is the experience of the traffic while the change is happening...what's going on behind the scenes when I click the update button?...
management
What_Lies_Bene1's avatar
What_Lies_Bene1
Icon for Cirrostratus rankCirrostratus
Oct 28, 2013

Err, it depends. In nearly all cases the original value is used so in the case of any existing (or new persisted connections related to them) connections, they will go to the old Pool. It depends because;

 

1) OneConnect changes this behaviour as it makes a load balancing decision for HTTP traffic per request

 

2) Priority Group Activation may muddy the picture

 

3) If we're talking UDP and you have Datagram LB each packet is load balanced individually

 

4) iRule may also muddy the picture