Werk #11150: Refactoring of the monitoring of Cisco VPN sessions

This werk refactors the code for monitoring the number of Cisco VPN sessions. The three checks cisco_asa_ipsecsessions, cisco_asa_svcsessions and cisco_asa_webvpnsessions are replaced with one check with three items (cisco_vpn_sessions). The corresponding rule for defining upper levels on the number of active sessions is renamed from "Cisco SVC/WebVPN/IPsec Sessions" to "Cisco VPN Sessions"

This change is incompatible. Users have to re-discover the services of affected hosts and re-create the rules for the upper levels on the number of active sessions. Furthermore, any previously created rules should be deleted, since they are deprecated as of this werk and have no more effect.

To the list of all Werks