*
* @return true if the connection is alive, false otherwise.
*/
private boolean enquireLink() {
try {
EnquireLink request = new EnquireLink();
connection.sendRequest(request);
log.trace(getLogHead() + "Enquire Link: " + request.toString());
return true;
} catch (Exception e) {
log.info(getLogHead() + "Exception while Enquire Link: " + e.getMessage(), e);
}