echoscu Responding Application Name confusion

[robertsdavidb]

I started an instance of storescp like this.

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storescp -d -aet MYSCP 1104

And I echoscu it like this.

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echoscu -d -aet MYSCU -aec CALLEDSCP <host> <port>

storescp acks the association request with this message.

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D: ====================== BEGIN A-ASSOCIATE-AC =====================
D: Our Implementation Class UID:      1.2.276.0.7230010.3.0.3.6.0
D: Our Implementation Version Name:   OFFIS_DCMTK_360
D: Their Implementation Class UID:    1.2.276.0.7230010.3.0.3.6.0
D: Their Implementation Version Name: OFFIS_DCMTK_360
D: Application Context Name:    1.2.840.10008.3.1.1.1
D: Calling Application Name:    MYSCU
D: Called Application Name:     CALLEDSCP
D: Responding Application Name: MYSCP
D: Our Max PDU Receive Size:    16384
D: Their Max PDU Receive Size:  16384
D: Presentation Contexts:
D:   Context ID:        1 (Accepted)
D:     Abstract Syntax: =VerificationSOPClass
D:     Proposed SCP/SCU Role: Default
D:     Accepted SCP/SCU Role: Default
D:     Accepted Transfer Syntax: =LittleEndianImplicit
D: Requested Extended Negotiation: none
D: Accepted Extended Negotiation:  none
D: Requested User Identity Negotiation: none
D: User Identity Negotiation Response:  none
D: ======================= END A-ASSOCIATE-AC ======================

But, echoscu receives the ack like this ..

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D: ====================== BEGIN A-ASSOCIATE-AC =====================
D: Our Implementation Class UID:      1.2.276.0.7230010.3.0.3.6.0
D: Our Implementation Version Name:   OFFIS_DCMTK_360
D: Their Implementation Class UID:    1.2.276.0.7230010.3.0.3.6.0
D: Their Implementation Version Name: OFFIS_DCMTK_360
D: Application Context Name:    1.2.840.10008.3.1.1.1
D: Calling Application Name:    MYSCU
D: Called Application Name:     CALLEDSCP
D: Responding Application Name: CALLEDSCP
D: Our Max PDU Receive Size:    16384
D: Their Max PDU Receive Size:  16384
D: Presentation Contexts:
D:   Context ID:        1 (Accepted)
D:     Abstract Syntax: =VerificationSOPClass
D:     Proposed SCP/SCU Role: Default
D:     Accepted SCP/SCU Role: Default
D:     Accepted Transfer Syntax: =LittleEndianImplicit
D: Requested Extended Negotiation: none
D: Accepted Extended Negotiation:  none
D: Requested User Identity Negotiation: none
D: User Identity Negotiation Response:  none
D: ======================= END A-ASSOCIATE-AC ======================

My confusion is with the Responding Application Name. The responding AE is "MYSCP", but echoscu shows it as "CALLEDSCP" instead (which doesn't actually exist).

[J. Riesmeier]

Thank you for the report. This seems to be related to the following issue: http://support.dcmtk.org/redmine/issues/375

[robertsdavidb]

Thanks for the quick reply.