687-551 Refcode_687-551


		
		
		Explanation
 Port sync external loopback test failed. 
		

		
		Response
			No action is required.

		

		
		
		
		
		
		Problem determination
			No action is required.

		

		
		
		
		
		
		Failing Item
			
			Find the failing function code in Failing function code list.

				
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