Symptoms
When clicking the Update button in the Security - Policies tab under Local Traffic :: Virtual Servers : Virtual Server List : <virtual-server>, after enabling an ASM policy there is a delay and then the following error may appear: "An error has occurred while trying to process your request."
This can occur even if you have a small number of policies, but one policy is being assigned to hundreds of Virtual Servers.
Impact
Updates can take a long time in the Security - Policies tab after enabling an ASM policy, and you may receive a page error "An error has occurred while trying to process your request."
Conditions
-- ASM is provisioned
-- A single ASM policy is assigned to hundreds of LTM Virtual Servers
Workaround
Association of LTM virtual server to ASM Policy may be alternatively done by:
- TMSH
- GUI @ "Local Traffic
âºâº
Policies : Policy List"
(*) in both cases an LTM policy needs to be created first