CCSDS 734.2-R-1, CCSDS Bundle Protocol Specification (Red ...

DRAFT CCSDS RECOMMENDED STANDARD FOR CCSDS BUNDLE PROTOCOL SPECIFICATION4.4.5 Cancel.request4.4.5.1 FunctionThe Cancel.request primitive shall be used by the application to request termination oftransmission of an application data unit for which the application previously requestedtransmission.4.4.5.2 SemanticsCancel.request shall provide parameters as follows:Cancel.request(Local Bundle ID)4.4.5.3 When GeneratedCancel.request is generated by the application at any time after requesting transmission ofa bundle.4.4.5.4 Effect on ReceiptReceipt of Cancel.request shall cause the bundle protocol agent to stop attempting totransmit and to discard the target bundle, if possible.4.4.5.5 Additional CommentsIf the bundle has already been transmitted, there is no obligation on the sending bundleprotocol agent to take any further action. It is an implementation matter whether a bundlethat is in the process of being transmitted when a Cancel.request is received is terminated.CCSDS 734.2-R-1 Page 4-8 February 2012