If you want to suppress a message from the SYSLOG you can realize this by using an EventView Message Rule as follows:
1. Go to panel "EventView : Message Rule List" (Option =A.E.R.M). Here you can add an entry for your desired message by hitting PF4. If an entry already exists you can select it using line command 'U'.
2. Go to panel "Message Delivery" (the second in the list) and specify a Delivery Option of 'Z' in the panel "Message Delivery". This will discard the message.
(Reminder: This document describes how to suppress messages being written to the SYSLOG. Possible consequences are not in the resposibility of CA technologies)