Delete Persistence record by iRule command

Hi Francis,

the option "Match Across Services" allows you to use shared persistence records, if the involved virtuals server and/or pool members (of the same pool) are sharing the same IP addresses.

To be clear:

If the individual virtual servers are pointing to the same pool, you would see just a single persistence record getting created for each clients.

client_addr -> virtual address:* -> pool_a -> node_a:*

If the the virtuals using multiple or independent pools, each pool would still have its own persistence record.

client_addr -> virtual address:* -> pool_a -> node_a:*

client_addr -> virtual address:* -> pool_b -> node_a:*

The command

persist delete source_addr [IP::client_addr]

would not delete all persistence records for the given client_addr. It would just delete the records related to the current session.

client_addr -> virtual address:* -> pool_a

or

client_addr -> virtual address:* -> pool_b

To remove additional records outside of the current session, you may pass additional options to the

[persist]

command. The options are...

persist delete source_addr [list [IP::client_addr] any virtual]
persist delete source_addr [list [IP::client_addr] any service]
persist delete source_addr [list [IP::client_addr] any pool]
persist delete source_addr [list [IP::client_addr] any]

... or even a combination of those ...

persist delete source_addr [list [IP::client_addr] any service any pool]

In addition its noteworthy to mention, that the

[persist delete]

command will only delete a single record per execution. So if you need to remove more than one record, then you have to use a

[while]

,

[for]

or

[foreach]

loop.

Hope this helps...

Cheers, Kai