This parameter specifies the list of communication buffer exit libraries that DB2® will use. A communication buffer exit library is a dynamically loaded library that vendor applications can use to gain access to and examine DB2 communication buffers used to communicate with client applications.
By default, the value is null. When the value is non-null, it is taken to be a comma separate list of communication buffer exit libraries that DB2 is to use. Each library must be separated by a comma, with no spaces either before or after the comma.
Each name can be up to 32 bytes long. The name should not include the extension (eg. .so or .a). The total length of the parameter must not be more than 128 bytes.