Signaling User Adaptation Layer Assignments 
per [RFC4233][RFC3331][RFC4666][RFC3788][RFC3807][RFC4165][RFC3868][RFC4129] 

(last updated 2007-12-21)

Registries included below:
- Message Classes
- Message Types
- Message Parameters


Registry Name: Message Classes
Reference: [RFC4233][RFC3331][RFC4666][RFC3788][RFC3807][RFC4165][RFC3868][RFC4129] 
Registration Procedures: IETF Consensus 

Registry:
Value    Description                                                Reference
-------  ---------------------------------------------------------  ------------------------------------------------------
0        Management (MGMT) Message                                  [RFC4233][RFC3331][RFC4666][RFC3868][RFC4129][RFC3807]
1        Transfer Messages                                          [RFC4666]
2        SS7 Signalling Network Management (SSNM) Messages          [RFC4666][RFC3868]                                          
3        ASP State Maintenance (ASPSM) Messages                     [RFC4233][RFC3331][RFC4666][RFC3868][RFC4129][RFC3807]
4        ASP Traffic Maintenance (ASPTM) Messages                   [RFC4233][RFC3331][RFC4666][RFC3868][RFC4129][RFC3807]
5        Q.921/Q.931 Boundary Primitives Transport (QPTM) Messages  [RFC4233]
6        MTP2 User Adaptation (MAUP) Messages                       [RFC3331]
7        Connectionless Messages                                    [RFC3868]
8        Connection-Oriented Messages                               [RFC3868]
9        Routing Key Management (RKM) Messages                      [RFC4666]
10       Interface Identifier Management (IIM) Messages             [RFC3331]
11       M2PA Messages                                              [RFC4165]
12       Security Messages                                          [RFC3788]
13       DPNSS/DASS2 Boundary Primitives Transport Messages         [RFC4129]
14       V5 Boundary Primitives Transport Messages (V5PTM)          [RFC3807]
15-127   Unassigned
128-255  Reserved for IETF-Defined Message Class extensions


Registry Name: Message Types - Management (MGMT) Message (Value 0)
Reference: [RFC4233][RFC3331][RFC4666][RFC3868][RFC4129][RFC3807] 
Registration Procedures: IETF Consensus 

Registry:
Value    Description                                 Reference
-------  ------------------------------------------  ------------------------------------------------------
0        Error (ERR)                                 [RFC4233][RFC3331][RFC4666][RFC3868][RFC4129][RFC3807]
1        Notify (NTFY)                               [RFC4233][RFC3331][RFC4666][RFC3868][RFC4129][RFC3807]
2        TEI Status Request                          [RFC4233][RFC3807]
3        TEI Status Confirm                          [RFC4233][RFC3807]
4        TEI Status Indication                       [RFC4233][RFC3807]
5        DLC Status Request                          [RFC4129]
6        DLC Status Confirm                          [RFC4129]
7        DLC Status Indication                       [RFC4129]
8        TEI Query Request                           [RFC5133]
9-127    Unassigned
128-255  Reserved for IETF-Defined MGMT extensions 


Registry Name: Message Types - Transfer Messages (Value 1) 
Reference: [RFC4666] 
Registration Procedures: IETF Consensus 

Registry:
Value    Description                                     Reference
-------  ----------------------------------------------  ---------
0        Reserved                                        [RFC4666]
1        Payload Data (DATA)                             [RFC4666]
2-127    Unassigned
128-255  Reserved for IETF-Defined Transfer extensions


Registry Name: Message Types - SS7 Signalling Network Management (SSNM) Messages (Value 2) 
Reference: [RFC4666][RFC3868] 
Registration Procedures: IETF Consensus 

Registry:
Value    Description                               Reference
-------  ----------------------------------------  ------------------
0        Reserved                                  [RFC4666][RFC3868]
1        Destination Unavailable (DUNA)            [RFC4666][RFC3868]
2        Destination Available (DAVA)              [RFC4666][RFC3868]
3        Destination State Audit (DAUD)            [RFC4666][RFC3868]
4        Signalling Congestion (SCON)              [RFC4666][RFC3868]
5        Destination User Part Unavailable (DPU)   [RFC4666][RFC3868]
6        Destination Restricted (DRST)             [RFC4666][RFC3868]
7-127    Reserved by the IETF
128-255  Reserved for IETF-Defined SSNM extensions


Registry Name: Message Types - ASP State Maintenance (ASPSM) Messages (Value 3) 
Reference: [RFC4233][RFC3331][RFC4666][RFC3868][RFC4129][RFC3807]
Registration Procedures: IETF Consensus 

Registry:
Value    Description                                 Reference
-------  ------------------------------------------  ------------------------------------------------------
0        Reserved                                    [RFC4233][RFC3331][RFC4666][RFC3868][RFC4129][RFC3807]
1        ASP Up (UP)                                 [RFC4233][RFC3331][RFC4666][RFC3868][RFC4129][RFC3807]
2        ASP Down (DOWN)                             [RFC4233][RFC3331][RFC4666][RFC3868][RFC4129][RFC3807]
3        Heartbeat (BEAT)                            [RFC4233][RFC3331][RFC4666][RFC3868][RFC4129][RFC3807]
4        ASP Up Ack (UP ACK)                         [RFC4233][RFC3331][RFC4666][RFC3868][RFC4129][RFC3807]
5        ASP Down Ack (DOWN ACK)                     [RFC4233][RFC3331][RFC4666][RFC3868][RFC4129][RFC3807]
6        Heartbeat Ack (BEAT ACK)                    [RFC4233][RFC3331][RFC4666][RFC3868][RFC4129][RFC3807]
7-127    Unassigned
128-255  Reserved for IETF-Defined ASPSM extensions


Registry Name: Message Types - ASP Traffic Maintenance (ASPTM) Messages (Value 4) 
Reference: [RFC4233][RFC3331][RFC4666][RFC3868][RFC4129][RFC3807]
Registration Procedures: IETF Consensus 

Registry:
Value    Description                                 Reference
-------  ------------------------------------------  ------------------------------------------------------
0        Reserved                                    [RFC4233][RFC3331][RFC4666][RFC3868][RFC4129][RFC3807]
1        ASP Active (ACTIVE)                         [RFC4233][RFC3331][RFC4666][RFC3868][RFC4129][RFC3807]
2        ASP Inactive (INACTIVE)                     [RFC4233][RFC3331][RFC4666][RFC3868][RFC4129][RFC3807]
3        ASP Active Ack (ACTIVE ACK)                 [RFC4233][RFC3331][RFC4666][RFC3868][RFC4129][RFC3807]
4        .
SP Inactive Ack (INACTIVE ACK)             [RFC4233][RFC3331][RFC4666][RFC3868][RFC4129][RFC3807]
5-127    Unassigned
128-255  Reserved for IETF-Defined ASPTM extensions


Registry Name: Message Types - Q.921/Q.931 Boundary Primitives Transport (QPTM) Messages (Value 5) 
Reference: [RFC4233]
Registration Procedures: IETF Consensus 

Registry:
Value    Description                                 Reference
-------  ------------------------------------------  ---------
0        Reserved                                    [RFC4233]
1        Data Request Message                        [RFC4233]
2        Data Indication Message                     [RFC4233]
3        Unit Data Request Message                   [RFC4233]
4        Unit Data Indication Message                [RFC4233]
5        Establish Request                           [RFC4233]
6        Establish Confirm                           [RFC4233]
7        Establish Indication                        [RFC4233]
8        Release Request                             [RFC4233]
9        Release Confirm                             [RFC4233]
10       Release Indication                          [RFC4233]
11-127   Unassigned
128-255  Reserved for IETF-Defined QPTM extensions


Registry Name: Message Types - MTP2 User Adaptation (MAUP) Messages (Value 6) 
Reference: [RFC3331]
Registration Procedures: IETF Consensus 

Registry:
Value    Description                                 Reference
-------  ------------------------------------------  ---------
0        Reserved                                    [RFC3331]
1        Data                                        [RFC3331]
2        Establish Request                           [RFC3331]
3        Establish Confirm                           [RFC3331]
4        Release Request                             [RFC3331]
5        Release Confirm                             [RFC3331]
6        Release Indication                          [RFC3331]
7        State Request                               [RFC3331]
8        State Confirm                               [RFC3331]
9        State Indication                            [RFC3331]
10       Data Retrieval Request                      [RFC3331]
11       Data Retrieval Confirm                      [RFC3331]
12       Data Retrieval Indication                   [RFC3331]
13       Data Retrieval Complete Indication          [RFC3331]
14       Congestion Indication                       [RFC3331]
15       Data Acknowledge                            [RFC3331]
16-127   Unassigned
128-255  Reserved for IETF-Defined MAUP extensions


Registry Name: Message Types - Connectionless Messages (Value 7)
Reference: [RFC3868]
Registration Procedures: IETF Consensus 

Registry:
Value    Description                                           Reference
-------  ----------------------------------------------------  ---------
0        Reserved                                              [RFC3868]
1        Connectionless Data Transfer (CLDT)                   [RFC3868]
2        Connectionless Data Response (CLDR)                   [RFC3868]
3-127    Unassigned
128-255  Reserved for IETF-Defined Message Class Extensions   


Registry Name: Message Types - Connection-Oriented Messages (Value 8)
Reference: [RFC3868]
Registration Procedures: IETF Consensus 

Registry:
Value    Description                                          Reference
-------  ---------------------------------------------------  ---------
0        Reserved                                             [RFC3868]
1        Connection Request (CORE)                            [RFC3868]
2        Connection Acknowledge (COAK)                        [RFC3868]
3        Connection Refused (COREF)                           [RFC3868]
4        Release Request (RELRE)                              [RFC3868]
5        Release Complete (RELCO)                             [RFC3868]
6        Reset Confirm (RESCO)                                [RFC3868]
7        Reset Request (RESRE)                                [RFC3868]
8        Connection Oriented Data Transfer (CODT)             [RFC3868]
9        Connection Oriented Data Acknowledge (CODA)          [RFC3868]
10       Connection Oriented Error (COERR)                    [RFC3868]
11       Inactivity Test (COIT)                               [RFC3868]
12-127   Unassigned
128-255  Reserved for IETF-Defined Message Class Extensions


Registry Name: Message Types - Routing Key Management (RKM) Messages (Value 9)
Reference: [RFC4666]
Registration Procedures: IETF Consensus 

Registry:
Value    Description                                 Reference
-------  ------------------------------------------  ---------
0        Reserved                                    [RFC4666][RFC3868]
1        Registration Request (REG REQ)              [RFC4666][RFC3868]
2        Registration Response (REG RSP)             [RFC4666][RFC3868]
3        Deregistration Request (DEREG REQ)          [RFC4666][RFC3868]
4        Deregistration Response (DEREG RSP)         [RFC4666][RFC3868]
5-127    Unassigned
128-255  Reserved for IETF-Defined RKM extensions


Registry Name: Message Types - Interface Identifier Management (IIM) Messages (Value 10)
Reference: [RFC3331]
Registration Procedures: IETF Consensus 

Registry:
Value    Description                                Reference
-------   ----------------------------------------  ---------
0        Reserved                                   [RFC3331]
1        Registration Request (REG REQ)             [RFC3331]
2        Registration Response (REG RSP)            [RFC3331]
3        Deregistration Request (DEREG REQ)         [RFC3331]
4        Deregistration Response (DEREG RSP)        [RFC3331]
5-127    Unassigned
128-255  Reserved for IETF-Defined IIM extensions


Registry Name: Message Types - M2PA Messages (Value 11)
Reference: [RFC4165]
Registration Procedures: IETF Consensus 

Registry:
Value    Description                             Reference
-------  --------------------------------------  ---------
1        User Data                               [RFC4165]
2        Link Status                             [RFC4165]


Registry Name: Message Types - Security Messages (Value 12)   
Reference: [RFC3788]
Registration Procedures: IETF Consensus 

Registry:
Value    Description                             Reference
-------  --------------------------------------  ---------
1        STARTTLS message                        [RFC3788]
2        STARTTLS_ACK message                    [RFC3788]


Registry Name: Message Types - DPNSS/DASS2 Boundary Primitives Transport Messages (Value 13) 
Reference: [RFC4129]
Registration Procedures: IETF Consensus 

Registry:
Value    Description                             Reference
-------  --------------------------------------  ---------
0        Reserved                                [RFC4129]
1        Data Request Message                    [RFC4129]
2        Data Indication Message                 [RFC4129]
3        Unit Data Request Message               [RFC4129]
4        Unit Data Indication Message            [RFC4129]
5        Establish Request                       [RFC4129]
6        Establish Confirm                       [RFC4129]
7        Establish Indication                    [RFC4129]
8        Release Request                         [RFC4129]
9        Release Confirm                         [RFC4129]
10       Release Indication                      [RFC4129]


Registry Name: Message Types - V5 Boundary Primitives Transport (V5PTM) Messages (Value 14)  
Reference: [RFC3807]
Registration Procedures: IETF Consensus 

Registry:
Value   Description                             Reference
-----   --------------------------------------  ---------
1       Data Request Message                    [RFC3807]
2       Data Indication Message                 [RFC3807]
3       Unit Data Request Message               [RFC3807]
4       Unit Data Indication Message            [RFC3807]
5       Establish Request                       [RFC3807]
6       Establish Confirm                       [RFC3807]
7       Establish Indication                    [RFC3807]
8       Release Request                         [RFC3807]
9       Release Confirm                         [RFC3807]
10      Release Indication                      [RFC3807]
11      Link Status Start Reporting             [RFC3807]
12      Link Status Stop Reporting              [RFC3807]
13      Link Status Indication                  [RFC3807]
14      Sa-Bit Set Request                      [RFC3807]
15      Sa-Bit Set Confirm                      [RFC3807]
16      Sa-Bit Status Request                   [RFC3807]
17      Sa-Bit Status Indication                [RFC3807]
18      Error Indication                        [RFC3807]
   
   
Registry Name: Message Parameters
Reference: [RFC3331][RFC4666]
Registration Procedures: IETF Consensus  

Registry:
Value        Description                                 Reference
-----------  ------------------------------------------  ------------------------------------------------------
0            Reserved                                    [RFC3331]
1            Interface Identifier (Integer)              [RFC4233][RFC3331][RFC4129][RFC3807]
3            Interface Identifier (Text)                 [RFC4233][RFC3331][RFC4129][RFC3807]
4            Info String                                 [RFC4233][RFC3331][RFC4666][RFC3868][RFC4129][RFC3807]
5            DLCI                                        [RFC4233][RFC4129]
6            Routing Context                             [RFC4666][RFC3868]
7            Diagnostic Information                      [RFC4233][RFC3331][RFC4666][RFC3868][RFC4129][RFC3807]
8            Interface Identifier (Integer Range)        [RFC4233][RFC3331][RFC4129][RFC3807]
9            Heartbeat Data                              [RFC4233][RFC3331][RFC4666][RFC3868][RFC4129][RFC3807]
10           Reason                                      [RFC4233][RFC4129][RFC3807]
11           Traffic Mode Type                           [RFC4233][RFC3331][RFC4666][RFC3868][RFC4129][RFC3807]
12           Error Code                                  [RFC4233][RFC3331][RFC4666][RFC3868][RFC4129][RFC3807]
13           Status Type/Information                     [RFC4233][RFC3331][RFC4666][RFC3868][RFC4129][RFC3807]
14           Protocol Data                               [RFC4233][RFC4129][RFC3807]
15           Reason                                      [RFC4233][RFC4129][RFC3807]
16           Status                                      [RFC4233][RFC4129][RFC3807]
17           ASP Identifier                              [RFC3331][RFC4666][RFC3868]
18           Affected Point Code                         [RFC4666][RFC3868]
19           Correlation Id                              [RFC3331][RFC4666][RFC3868]
20           Registration Result                         [RFC3868]
21           Deregistration Result                       [RFC3868]
22           Registration Status                         [RFC3868]
23           Deregistration Status                       [RFC3868]
24           Local Routing Key Identifier                [RFC3868]
25-128       Unassigned 
129          DLCI/EFA                                    [RFC3807]
130          Link Status                                 [RFC3807]
131          Bit ID/Bit Value                            [RFC3807]
132          Error Reason                                [RFC3807]
133-255      Unassigned
256          Unassigned
257          SS7 Hop Counter                             [RFC3868]
258          Source Address                              [RFC3868]
259          Destination Address                         [RFC3868]
260          Source Reference Number                     [RFC3868]
261          Destination Reference Number                [RFC3868]
262          SCCP Cause                                  [RFC3868]
263          Sequence Number                             [RFC3868]
264          Receive Sequence Number                     [RFC3868]
265          ASP Capabilities                            [RFC3868]
266          Credit                                      [RFC3868]
267          Data                                        [RFC3868]
268          Cause / User                                [RFC3868]
269          Network Appearance                          [RFC3868]
270          Routing Key                                 [RFC3868]
271          DRN Label                                   [RFC3868]
272          TID Label                                   [RFC3868]
273          Address Range                               [RFC3868]
274          SMI                                         [RFC3868]
275          Importance                                  [RFC3868]
276          Message Priority                            [RFC3868]
277          Protocol Class                              [RFC3868]
278          Sequence Control                            [RFC3868]
279          Segmentation                                [RFC3868]
280          Congestion Level                            [RFC3868]
281-511      Unassigned
512          Network Appearance                          [RFC4666]
513          Reserved                                    [RFC4666]
514          Reserved                                    [RFC4666]
515          Reserved                                    [RFC4666]
516          User/Cause                                  [RFC4666]
517          Congestion Indications                      [RFC4666]
518          Concerned Destination                       [RFC4666]
519          Routing Key                                 [RFC4666]
520          Registration Result                         [RFC4666]
521          Deregistration Result                       [RFC4666]
522          Local_Routing Key Identifier                [RFC4666]
523          Destination Point Code                      [RFC4666]
524          Service Indicators                          [RFC4666]
525          Reserved                                    [RFC4666]
526          Originating Point Code List                 [RFC4666]
527          Circuit Range                               [RFC4666]
528          Protocol Data                               [RFC4666]
529          Reserved                                    [RFC4666]
530          Registration Status                         [RFC4666]
531          Deregistration Status                       [RFC4666]
532-769      Unassigned
768          Protocol Data 1                             [RFC3331]
769          Protocol Data 2 (TTC)                       [RFC3331]
770          State Request                               [RFC3331]
771          State Event                                 [RFC3331]
772          Congestion Status                           [RFC3331]
773          Discard Status                              [RFC3331]
774          Action                                      [RFC3331]
775          Sequence Number                             [RFC3331]
776          Retrieval Result                            [RFC3331]
777          Link Key                                    [RFC3331]
778          Local-LK-Identifier                         [RFC3331]
779          Signalling Data Terminal (SDT) Identifier   [RFC3331]
780          Signalling Data Link (SDL) Identifier       [RFC3331]
781          Registration Result                         [RFC3331]
782          Registration Status                         [RFC3331]
783          De-Registration Result                      [RFC3331]
784          De-Registration Status                      [RFC3331]
785-32768    Unassigned
32769        Global Title                                [RFC3868]
32770        Point Code                                  [RFC3868]
32771        Subsystem Number                            [RFC3868]
32772        IPv4 Address                                [RFC3868]
32773        Hostname                                    [RFC3868]
32774        IPv6 Addresses                              [RFC3868]
32775-65534  Unassigned
65535        Reserved                                    [RFC4233]


References
----------
[RFC3331]  K. Morneault, R. Dantu, G. Sidebottom, T. George, 
           B. Bidulock, and J. Heitz, "Signaling System 7 (SS7) 
           Message Transfer Part (MTP) 2 - User Adaptation Layer",
           RFC 3331, September 2002.

[RFC3788]  J. Loughney, M. Tuexen, Ed., and J. Pastor-Balbas, "Security 
           Considerations for SIGTRAN Protocols", RFC 3788, June 2004.

[RFC3807]  E. Weilandt, N. Khanchandani, S. Rao, "V5.2-User Adaptation 
           Layer (V5UA)", RFC 3807, June 2004.

[RFC3868]  J. Loughney, G. Sidebottom, L. Coene, G. Verwimp, J. Keller,
           and B. Bidulock, "Signalling Connection Control Part User
           Adaptation Layer (SUA)", RFC 3868, October 2004.

[RFC4129]  R. Mukundan, K. Morneault, N. Mangalpally, "Digital Private Network 
           Signaling System (DPNSS)/ Digital Access Signaling System 2 (DASS 2) 
           Extensions to the IUA Protocol", RFC 4129, August 2005.

[RFC4165]  T. George, B. Bidulock, R. Dantu, H. J. Schwarzbauer, K. Morneault, 
           "SS7 MTP2-User Peer-to-Peer Adaptation Layer", RFC 4165, September 2005.

[RFC4233]  K. Morneault, S. Rengasami, M. Kalla and G. Sidebottom, "Integrated 
           Services Digital Network (ISDN) Q.921-User Adaptation Layer", RFC 4233,
           January 2006.

[RFC4666]  K. Morneault and J. Pastor-Balbas, "Signaling System 7 (SS7) Message 
           Transfer Part 3 (MTP3) - User Adaptation Layer (M3UA)", RFC 4666, 
           September 2006.

[RFC5133]  M. Tuexen, K. Morneault, "TEI Query Request Number Change", 
           RFC 5133, December 2007.
           

(created 2002-08-12)

[]
