IRule update for multiple VIP's

Hi,

I think that satishs have one irule that is configured over several vs. And he want to update it with a new version.

• first of all, always keep an earlier version of the irula in case of rollback.
• this version must be saved on F5 with a version/date so that it can be accessed by your entire team (or on git) depending how you work.
• Before editing irule launch the following commad (CLI):

tailf /var/log/ltm | grep "TCL error"

It will allow you to trriged TCL error and to fix quickly edge effects.

the problem when you use the same IRULE on more than one service, is that you have to make sure that your modification does not alter one of them. especially if VS or IRULE apply are different services (OWA, APP, CRM, ...).

Then valid that your change will not change the behavior of any of your services.

• Once you modify the your IRULE be valid all your service or part of them.
• If you had an tcl error (do a rollback), check why you had an erro in the logs then fix it.

but as I explained earlier everything depends what you have in your irule. For example if you have an maintenance page (Irule), a test on a single application that carries the IRULE will allow you that everything is correct.

Hope it's clear for you.

Regards,