You want to be alerted when there are queued icap connections on the proxysg.
Proxy with ICAP device(CAS,DLP)
ICAP device is reaching max connection limit and connections are queuing
Modify ICAP threshold and notification properties by editing the values in the Management Console (Maintenance > Health Monitoring > General), or by using the alert notification icap deferred-connections and alert threshold icap queued-connections CLI configuration commands.
For more information, refer to the chapters “Malicious Content Scanning Services” and “Monitoring the
ProxySG” in the SGOS Administration Guide