Follow this procedure to activate an LACP link even in the absence of PDUs. 
  
		About this task
			Consider the following when using the
					
lacp default-up
				 command: 
					-  The command is available only if
						the configured interface is a dynamic member of a port-channel interface. 
 
					-  The command is not supported on
						static LAGs. 
 
					-  The command is not supported on
						port-channel interfaces. 
 
				
 
		
 
	 Procedure
-  
		  Enter the 
			 configure terminal command to access global configuration mode. 
		   
		
 -  
		  Enter the 
			 interface command, specifying the interface type and the slot/port. 
		   
		  
 
			 device(config)# interface ethernet 0/1 
 
			  
		    
		 -  
		  Specify LACP default-up for the interface. 
		   
		  
 
			 device(conf-if-eth-0/1)# lacp default-up 
 
			  
		    
		 -  
		  Enter the no form of the command to disable the configuration. 
		   
		  
 
			 device(conf-if-eth-0/1)#  no lacp default-up