| This graph shows the TCP activity of all the network interfaces combined. | 
		    
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			  | Field | Internal name | Type | Warn | Crit |  | 
		  
		    
		    
		      | active | active | derive | None | None | The number of active TCP openings per second. | 
		  
		    
		    
		      | passive | passive | derive | None | None | The number of passive TCP openings per second. | 
		  
		    
		      
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		      | failed | failed | derive | None | None | The number of failed TCP connection attempts per second. | 
		  
		    
		    
		      | resets | resets | derive | None | None | The number of TCP connection resets. | 
		  
		    
		    
		      | established | established | gauge | None | None | The number of currently open connections. |