Title: Responding to an ERROR message containing errors

PDR Reference:                   	M2090007
Originator Reference:
SARPs Document Reference:          	CPDLC SARPs, Section 2.3.2.3.7.3.11
Status:                          	RESOLVED
Impact:					C
PDR Revision Date:              	4/10/02 (PROPOSED -> RESOLVED)
					2/10/02 (SUBMITTED -> ACCEPTED -> PROPOSED)
PDR Submission Date:             	Sept 30, 2002
Submitting State/Organization:   	WG3/SG2
Submitting Author Name:           	Hamelink, Jane
Submitting Author E-mail Address:
Submitting Author Supplemental
Contact Information:
SARPs Date:                      	IV2.3 (Doc 9705 Ed1)
SARPs Language:                  	English

Summary of Defect:
To prevent getting in an infinite loop ERROR messages that are found to be in error shall not generate an error response.

Assigned SME:                              Sub-Volume II SME

Proposed SARPs amendment:

1. Add new 2.3.7.3.11.9  as follows:

2.3.7.3.11.9 Preventing Error loops

2.3.7.3.11.9.1 If the CPDLC-air-user receives a message containing the ERROR message element, and the message is found to be in error the CPDLC-air-user shall disregard the received message and be shall be prohibited from responding with an ERROR message.

2.3.7.3.11.9.2 If the CPDLC-ground-user receives a message containing the ERROR message element, and the message is found to be in error the CPDLC-ground-user shall disregard the received message and be prohibited from responding with an ERROR message.

Note 1. - This requirement refers to received ERROR messages that are recognized to be in error by the receiving system.

Note 2. - This requirement is to prevent getting into an infinite loop of sending errors.

Validation Status : 				  Paper analysis. 

SME Recommendation to CCB:                 

CCB Decision:                      		  atnp_ccb_chair: SUBMITTED
						CCB-16 (Toulouse): RESOLVED