Essentials are pre-installed monitors that ship with 
                  		Performance Manager (for example, pinger, URL checker, network diagnostic monitors). 
                  	 
 
            	 
            Essentials are available to all 
               		Performance Manager users, however they cannot be edited. Administrators can create custom Essentials and make them available to users. 
               	 
            
 
            	 
            
               Silk Performance Manager Self Monitoring
               
 
               		 
               		
               Silk Performance Manager self-monitoring monitors are designed to monitor other 
                  		  Performance Manager server infrastructures. 
                  		
               
 
               		
                
               	 
              
            	 
            
               Pingers
 
               		 
               		
               This type of monitoring allows you to test a server's viability by sending it various types of echo requests. The resulting
                  data tells you if the server is responding to the requests of users and if it is responding in a reasonable time frame. The
                  following pinger monitors are pre-installed: 
                  		
                  
 
                     		  
                     - Pinger: This monitor checks the availability of a specific host by sending it an Internet Control Message Protocol (ICMP) echo request
                        via TCP/IP. 
                        		  
                     
- FtpPinger: This monitor checks the availability of a FTP server by connecting to it and retrieving the current directory of the server.
                        
                        		  
                     
- LdapPinger: This monitor checks the availability of an LDAP server by connecting to it and performing an anonymous login. 
                        		  
                     
- POP3Pinger: This monitor connects to a POP3 server to check its availability. 
                        		  
                     
- SmtpPinger: This monitor connects to an SMTP server to check its availability. 
                        		  
                     
  
            
            	 
            
               URL Checker
 
               		 
               		
               URL-checker monitors check URL's by downloading their pages and embedded objects. Verification can be defined for title and
                  content. 
                  		
               
 
               	 
              
            	 
            
               Silk Test GUI-Level Monitoring
               
 
               		 
               		
               If your application cannot be monitored with a 
                  		  Silk Performer-based script, use this monitor type to monitor applications via a GUI-based solution with 
                  		  Silk Test.