For more information regarding the security incident at F5, the actions we are taking to address it, and our ongoing efforts to protect our customers, click here.

Forum Discussion

TJ_Vreugdenhil's avatar
TJ_Vreugdenhil
Icon for Cirrus rankCirrus
Mar 12, 2015

iRule v11 to send user to correct DC database based on HTML header

We have two DC's with one LTM and GTM in each DC. All VIP's have clientSSL profiles and no serverssl profiles. A user points to www.example.com and is DNS load balanced to either DC1 or DC2 based on ...
application delivery
deployment
design
devops
iRules
LTM
nitass's avatar
nitass
Icon for Employee rankEmployee
Mar 13, 2015

When a user comes into DC1 and hits the DC1 webserver. The database might actually live in DC2. In that case, the DC1 webserver will send the F5 an HTML header letting it know the database resides in DC2. Once the F5 receives this, it will redirect across an internal MPLS to DC2 LTM VIP and forward the request to the DC2 webserver.

 

in case you do not want to use redirect, you may try HTTP::retry. take a look at example in its wiki.

 

HTTP::retry

 

https://devcentral.f5.com/wiki/iRules.HTTP__retry.ashx