F.6 SWm Interface

29.2733GPP3GPP EPS AAA interfacesEvolved Packet System (EPS)Release 18TS

F.6.1 General

The Diameter load control mechanism is an optional feature over the SWm interface.

It is recommended to make use of the IETF RFC 8583 [54] over the SWm interface where, when applied, the ePDG shall behave as a reacting node and the 3GPP AAA server as a reporting node.

F.6.2 3GPP AAA server behaviour

The 3GPP AAA server behaviour is the same as described in clause F.3.2 for STa by replacing

– trusted non 3GPP access network by ePDG;

– STa by SWm.

F.6.3 ePDG behaviour

The ePDG behaviour is the same as described in clause F.3.3 for STa by replacing:

– trusted non 3GPP access network by ePDG;

– STa by SWm.

Annex G (informative):
Change history

Date

TSG #

TSG Doc.

CR

Rev

Cat

Subject/Comment

New

2008-12

CT#42

CP-080717

V2.0.0 approved in CT#42

8.0.0

2009-03

CT#43

CP-090051

0002

2

Clarification on QoS Resource on S6b

8.1.0

CP-090051

0003

1

Context Identifier for Update or Removal of PDN GW

CP-090051

0007

Clarification on the S6b Authorization Procedure for DSMIPv6

CP-090051

0009

Clarification on DHCPv6/IKEv2 based HA discovery

CP-090051

0010

1

Clarification on AAA server authentication/authorization

CP-090051

0011

1

Difference of S6b and H2

CP-090051

0013

1

STR on HSS/AAA initiated detach over STa

CP-090051

0014

1

STR on 3GPP AAA Server initiated detach over SWm

CP-090051

0015

1

STR on 3GPP AAA Server initiated detach over S6b

CP-090051

0016

1

Multiple 3GPP AAA identities

CP-090051

0019

1

User-Name AVP contains only the IMSI

CP-090051

0020

Removal of APN-Barring-Type Reference

CP-090051

0021

1

Charging AVPs

CP-090051

0022

1

MIP6-Agent-Info Definition and Usage

CP-090051

0023

1

REAUTHENTICATION_FAILURE Correction

CP-090051

0025

1

Definition of Server-Assignment-Type values

CP-090051

0026

Multiple Occurrences of SIP-Auth-Data-Item AVP

CP-090051

0028

1

Using MIP6-Agent-Info for SGW address

CP-090051

0029

1

MIP6-Agent-Info corrections

CP-090051

0030

1

Trace activation in PDN GW over the SWx and S6b interfaces

CP-090051

0031

1

Signalling VPLMN Trust of non-3GPP AN

CP-090051

0033

Corrections in Visited Network Identifier definitions

CP-090051

0034

2

Service Authorization Information update on S6b when using DSMIP

CP-090051

0035

4

STa/SWa clarifications

CP-090051

0036

1

IP address authorization corrections

CP-090051

0037

2

SWm Authentication Correction

CP-090051

0039

1

SWm corrections – others

CP-090051

0040

3

SWm Service Authorization Information Update corrections

CP-090051

0041

5

Combined Authentication and authorization procedure on SWm

CP-090051

0042

2

S6b related corrections

CP-090051

0044

2

Corrections to S6b/HA clause 9

CP-090039

0045

3

User to HSS resolution

CP-090051

0080

1

Corrections to STR procedures for AAA_UNKNOWN_SESSION_ID

CP-090051

0081

1

Corrections to S6b STR procedures

CP-090236

0082

1

PDN GW update for Wildcard APN

CP-090051

0083

RFC 5447 References

2009-06

CT#44

CP-090289

0084

1

Use of Access-Restriction-Data AVP

8.2.0

CP-090289

0085

Difference between S6b and H2

CP-090289

0086

1

Corrections to 29.273

CP-090289

0087

1

Inclusion of static IP address

CP-090289

0088

1

Home Agent discovery

CP-090289

0090

Incorrect command for user profile updates

CP-090289

0092

1

Home Agent discovery

CP-090289

0093

1

Formatting of APN in Service-Selection AVP

CP-090289

0094

Update of AVP Codes

CP-090289

0096

1

STa/SWa separation correction

CP-090289

0097

SWa corrections

CP-090289

0098

1

STa re-authorization and re-authentication

CP-090289

0101

2

SWa re-authentication

CP-090289

0102

1

Adding APN-OI-Replacement

CP-090289

0103

2

HA reallocation clarification

2009-09

CT#45

CP-090537

0105

2

Correction on APN-OI-Replacement

8.3.0

CP-090537

0106

Correction on the Description of Mobility Features over S6b

CP-090537

0111

EAP-AKA’ IETF RFC Reference

CP-090537

0112

Removal of Remaining Editor Notes

CP-090537

0113

1

MIP6_SPLIT flag removal

CP-090537

0108

3

Support of optimized idle mode mobility

CP-090537

0115

E-UTRAN – eHRPD Connectivity and Interworking Reference

CP-090537

0116

2

Detailed behaviour in error cases

CP-090537

0118

1

Application IDs

CP-090537

0119

Service-Selection AVP Code

CP-090537

0120

PDN-Type AVP

CP-090537

0121

1

Clarifications on PGW Handling on S6b/H2

2009-09

CT#45

CP-090562

0117

1

Emergency Support in AAA interfaces

9.0.0

2009-12

CT#46

CP-090793

0122

2

APN level APN-OI-Replacement

CP-090774

0126

3

Correction of Allowed PDN Types

9.1.0

CP-090774

0128

2

Incorrect HSS behaviour on deregistration

CP-090774

0130

2

MIP6 Agent Info

CP-090774

0132

Nonce

CP-090774

0136

3GPP AAA Server detailed behaviour at HSS Initiated Update of User Profile

CP-090774

0140

2

Static PDN GW

CP-090787

0141

Removal of Definition of APN-Configuration

CP-090774

0143

1

PGW deregistration via S6b

CP-090774

0145

1

Add Supported-Features AVP to STa/SWa

CP-090774

0147

Add Supported-Features AVP to SWm

CP-090774

0149

Add Supported-Features AVP to SWx

CP-090774

0151

Add Supported-Features AVP to S6b

CP-090774

0153

1

Correction of Application ID

CP-090774

0155

1

Error Handling

CP-090774

0157

HSS/AAA-Initiated Disconnection

2010-03

CT#47

CP-10024

0163

1

Correction in Subscription-ID

9.2.0

CP-10024

0165

NAI decoration and realm-based routing clarifications

CP-10024

0167

IETF References update

CP-10024

0169

Permanent User Identity

CP-10024

0171

1

Static PDN GW

CP-10024

0173

QoS AVP Codes

CP-10024

0175

Indication of PLMN ID of the selected PGW

CP-10044

0176

Context-Identifier in Registration Request

2010-06

CT#48

CP-100290

0179

1

Corrections on Session Termination between the PGW and the AAA

9.3.0

CP-100277

0180

Corrections to implementation of CR 128 and CR 175

CP-100277

0181

PGW Identity upon successful authorization on SWm

2010-06

CT#48

CP-100443

0184

Ambiguity of Presence Conditions of IEs and AVP ABNF

9.4.0

CP-100457

0188

IETF References

CP-100457

0189

1

SWm missing AVPs

2010-09

CT#49

CP-100603

0187

1

Removal of Invalid Reference

10.0.0

2010-12

CT#50

CP-100679

0197

1

Correcting PDN GW behaviour for S6b

10.1.0

CP-100698

0194

1

Update APN and PDN GW in the 3GPP AAA Server on SWx

CP-100698

0195

1

Update APN and PDN GW in Non-3GPP IP Access over the STa & SWm interfaces

CP-100686

0196

3

SWm and S6b procedures for GTP based S2b

CP-100707

0200

MIP6 Feature Vector flags assignment

CP-100707

0203

SWx AVP Bits Definition

CP-100707

0206

Visited-Network-Identifier Data Type

2011-03

CT#51

CP-110051

0210

1

Usage of Auth-Request-Type in response messages

10.2.0

CP-110073

0208

2

Correction on PGW PLMN ID

2011-06

CT#52

CP-110359

0214

1

Trace-Depth-List correction

10.3.0

CP-110359

0217

1

MIPv4 security parameters on the STa and S6b interfaces

CP-110359

0221

1

PGW Update

CP-110359

0223

1

APN Configuration for SWx

CP-110360

0219

Authentication Timeout

2011-12

CT#54

CP-110778

0227

1

S6b session handling after handover to 3GPP access

10.4.0

CP-110778

0235

1

Incorrect access name on SWa

CP-110793

0228

5

Correction on Trust Relationship Indication

CP-110793

0238

Implementation Error of CR 196 R3

2011-12

CT#54

CP-110812

0225

4

SWx Restoration

11.0.0

2012-03

CT#55

CP-120016

0257

1

Wrong Command Code in STa AA-Answer

11.1.0

CP-120020

0251

2

Authorize the requested home address types

CP-120020

0260

Content of Service-Selection AVP

CP-120040

0245

1

Wildcard APN in the user subscription

CP-120040

0253

Permanent User Identity in SWm Authentication and Authorization Answer

CP-120040

0255

Encoding of Visited-Network-Identifier AVP

CP-120040

0256

Re-Authorization Errors

CP-120042

0254

1

Permanent User Identity at SWa

CP-120044

0240

1

PDN GW reallocation based on UE’s location

2012-06

CT#56

CP-120225

0243

3

Trust Relationship Indication

11.2.0

CP-120238

0264

S6b procedures for GTP based S2a

CP-120247

0265

2

Missing IE in TS 29.273

CP-120247

0266

Emergency scenario for STa interface

CP-120247

0267

2

Visited Network Identifier

CP-120247

0278

1

Network Name

CP-120238

0268

6

STa & SWd procedures for GTP S2a & Trusted WLAN access

CP-120238

0269

1

Default APN for ‘Trusted WLAN access’

CP-120238

0270

3

Informing Serving SSID to the AAA Server

CP-120238

0271

1

Avoiding registration of PDN-GW identity for TWAN

CP-120238

0275

1

Clarifications on TWAN behaviour

CP-120237

0273

2

PDN GW selection for S2c during tunnel establishment

2012-09

CT#57

CP-120441

0285

Update of IETF draft status to RFC

11.3.0

CP-120447

0287

2

PGW selection in eHRPD for SIPTO

CP-120461

0272

3

Recovering from AAA Server failure

CP-120474

0279

1

Transport Access Type AVP for BBAI

CP-120477

0280

1

NSWO-Capability & NSWO-Authorization AVPs

CP-120477

0281

Access Type for TWAN access

CP-120656

0292

1

Reference list correction to align with the corrected TS 29.212 title

2012-12

CT#58

CP-120711

0307

1

Removal of AVP Encryption

11.4.0

CP-120733

0293

Repeat information for Trusted non-3GPP access network

CP-120733

0300

5

Matching WLAN-ID between Selected WLAN ID and TWAN Access Info

CP-120733

0301

1

Update of draft-ietf-radext-ieee802ext reference

CP-120747

0294

Correction on Auth-Request-Type

CP-120747

0295

Description of Result IE

CP-120728

0297

2

Information Elements for SWa interface

CP-120728

0299

1

Session ID in the SWm Authorization procedure

CP-120750

0302

1

Trace Info for PGW

CP-120750

0303

1

Add the definition of trace-reference

CP-120741

0309

2

Use of Flag instead of Enumerated AVPs

2013-03

CT#59

CP-130022

0314

2

About EAP-AKA’ challenge message

11.5.0

CP-130022

0315

1

TWAN Authorization when HE-SSID is not provided

CP-130022

0317

Missing P-Bit settings in Information Element tables

CP-130022

0316

Presence condition of PGW-ID AVP in S6b AAR command

2013-06

CT#60

CP-130288

0313

3

New DER-S6b-flags on S6b interface

11.6.0

CP-130288

0325

1

MIP4 supported flag

CP-130288

0323

1

3GPP AAA Proxy behavior

CP-130288

0321

1

Definition of HA-APN

CP-130288

0320

2

Trust relationship for PGW

CP-130293

0318

2

UE local IP address for SWm or S6b

2013-06

CT#60

CP-130381

0326

1

EAP-AKA clarification

12.0.0

CP-130381

0319

2

Clarification for Routing Policies

2013-09

CT#61

CP-130459

0333

1

Category of Authentication Data Information Element in SWx/MAR command

12.1.0

CP-130472

0329

2

Add 3GPP AAA Proxy detailed Behaviour on SWa

CP-130472

0331

1

Correction on IP Mobility Mode Selection function

CP-130461

0327

2

Clarification on provision of HA information for DHCP-based HA discovery on STa

CP-130461

0332

Applicability of IP Filters and Routing Policies functionality on EPC

2013-12

CT#62

CP-130602

0351

EAP Payload

12.2.0

CP-130640

0338

Clarification on Trust Relationship Indicator

CP-130640

0339

1

MIP6-Agent-Info over the S6b interface

CP-130640

0346

Clarification of M-bit handling

CP-130640

0354

1

Reflective QoS for BBF convergence

CP-130606

0341

IMSI for BBF in trusted S2c case

CP-130616

0343

4

NSWO via the trusted WLAN

CP-130616

0345

1

VPLMN trust relationship indicator

CP-130616

0356

1

EPC Access Authorization

CP-130633

0353

1

PGW update on SWx

2014-03

CT#63

CP-140023

0366

1

Replacement of IETF WLAN AVPs

12.3.0

CP-140033

0361

Incorrect Diameter commands

CP-140033

0363

1

Condition for sending APN Information

CP-140030

0364

1

Retrieval of Network Provided Location Information via HSS

CP-140033

0367

RAT Type correction

2014-06

CT#64

CP-140247

0368

STa Authentication for Trusted WLAN access

12.4.0

CP-140253

0369

4

IMSI for BBF convergence

CP-140253

0370

1

Reflective QoS in BBF architecture

CP-140252

0373

2

Civic Address Encoding

CP-140252

0377

TWAN-BSSID AVP re-naming

CP-140243

0374

3

Diameter overload over SWx

CP-140243

0375

3

Diameter overload over STa and S6b

2014-09

CT#65

CP-140510

0379

2

Session Management back-off timer for UE in Single-Connection mode

12.5.0

CP-140516

0381

2

Remove TS 23.234 from TS 29.273

CP-140516

0382

1

Remove TS 29.234 from TS 29.273

CP-140519

0383

1

Circuit ID in NetLoc-TWLAN

2014-12

CT#66

CP-140771

0385

Correct wrong references to 3GPP specifications that define Diameter experimental result codes 5001 to 5005

12.6.0

CP-140771

0397

3

Restricted RAT Types

CP-140784

0386

1

WLCP key for WLCP signalling protection

CP-140784

0387

1

TWAN authentication and authorization call flows for MCM and TSCM

CP-140784

0398

1

Back-off timer refers to Tw1

CP-140790

0389

3

Diameter Overload over SWm and SWa

CP-140754

0394

2

Leading Digit of User-Name AVP

CP-140757

0396

Incorrect implementation of CR on EAP-Payload

2015-03

CT#67

CP-150021

0401

1

Usage of decorated NAI

12.7.0

CP-150021

0404

1

Clarification of user de-registration

2015-06

CT#68

CP-150276

0416

1

Correction of the type of the Redirect-Host AVP

12.8.0

CP-150250

0407

Repeated SWm session for default APN

2015-06

Implemented Rel-13 CRs removed (0410r1, 0417r1, 0418r1, 0405r1)

12.8.1

2015-06

CT#68

CP-150268

0410

1

The value of SM-Back-Off-Timer

13.0.0

CP-150268

0417

1

Clarification on the S6b Service Authorization Information Update procedure for DSMIPv6

CP-150268

0418

1

Removing EPC before Root NAI

CP-150268

0405

1

PDN GW Identity

2015-09

CT#68

CP-150455

0422

1

IMEI(SV) signalling for untrusted WLAN access

13.1.0

CP-150455

0423

2

IMEI(SV) signalling for trusted WLAN access

CP-150455

0424

1

IMEI(SV) signalling during Non-3GPP IP Access Registration

CP-150442

0425

1

3GPP AAA Server sends an ASR command to clean up possible hanging resources

CP-150442

0426

3

Overlapping transaction over S6b

CP-150451

0427

1

Default access type for SCM

CP-150447

0428

Reference to a wrong clause in TS 23.008

2015-12

CT#70

CP-150770

0429

5

Emergency PDN connection over untrusted WLAN access

13.2.0

CP-150770

0430

3

Network provided WLAN Location Information for PDN connection establishment over S2b

CP-150764

0431

1

UE local IP address in Authentication and Authorization Request over SWm

CP-150780

0433

3

P-CSCF Restoration for WLAN over SWx

CP-150780

0434

5

Authorisation procedure with the extended P-CSCF restoration mechanism for WLAN

CP-150787

0435

Transfer of IMEI from 3GPP AAA Server to HSS over SWx

CP-150773

0436

3

Multiple accesses to a PDN connection not allowed for SCM

CP-150748

0438

Visited-Network-Identifier for untrusted WLAN

CP-150748

0443

2

Blocking TWAN access to EPC

CP-150782

0439

1

Handling of S6b Authorization Request without Origination Timestamp

CP-150846

0440

4

Diameter message priority over non 3GPP access

CP-150759

0444

1

Reference to DOIC updated with IETF RFC 7683

2016-03

CT#71

CP-160035

0446

Remove the default access AVP

13.3.0

CP-160042

0447

Extension on TWAN-S2a-Failure-Cause

CP-160042

0448

1

Authorize the UE requested APN

CP-160037

0449

Correction of CR implementation on Emergency PDN connection over untrusted WLAN access

CP-160037

0450

1

ePDG retrieval of WLAN Location Information

CP-160153

0452

2

Result-Codes for P-CSCF Restoration

2016-06

CT#72

CP-160220

0453

1

RAT type not allowed

13.4.0

2016-06

CT#72

CP-160220

0454

1

Wildcard APN for SWx and S6b

13.4.0

2016-06

CT#72

CP-160220

0455

2

Clarification on the use of SAR message when AAA has no profile

13.4.0

2016-06

CT#72

CP-160220

0456

1

Wildcard authorized APN in TWAN

13.4.0

2016-06

CT#72

CP-160220

0457

2

APN information over S6b

13.4.0

2016-06

CT#72

CP-160231

0458

Removal of NBIFOM reference

13.4.0

2016-06

CT#72

CP-160223

0459

2

Incorrect usage of term "Untrusted WLAN" when RAT type is not known

13.4.0

2016-09

CT#73

CP-160418

0463

APN subscription check in the STa authentication and authorization procedure

13.5.0

2016-09

CT#73

CP-160418

0465

1

Transferring AAA identifier from the ePDG/TWAN to the PGW

13.5.0

2016-09

CT#73

CP-160436

0461

1

3GPP AAA Server/Proxy – EIR reference point

14.0.0

2016-09

CT#73

CP-160436

0462

2

STa and SWm extensions for IMEI check

14.0.0

2016-12

CT#74

CP-160674

0466

2

Destination-Host correction on STa & SWm

14.1.0

2016-12

CT#74

CP-160674

3GPP AAA Server behaviour in the user profile updated procedure

14.1.0

2016-12

CT#74

CP-160674

0489

1

Handling of Undefined bit in DER-Flags

14.1.0

2016-12

CT#74

CP-160679

0468

4

Handover of Emergency PDN Connections

14.1.0

2016-12

CT#74

CP-160679

0471

1

IMEI check for Emergency Attach over WLAN

14.1.0

2016-12

CT#74

CP-160679

0473

1

Emergency services over untrusted WLAN for unauthenticated or unauthorized UEs

14.1.0

2016-12

CT#74

CP-160679

0474

2

Support of Emergency sessions over Trusted WLAN

14.1.0

2016-12

CT#74

CP-160682

0469

1

Missing IMEI-Check-In-VPLMN-Result AVP

14.1.0

2016-12

CT#74

CP-160682

0477

1

IMEI check call flow for untrusted WLAN

14.1.0

2016-12

CT#74

CP-160657

0476

1

APN-Configuration AVP format for Non-3GPP accesses

14.1.0

2016-12

CT#74

CP-160681

0484

2

Load Control

14.1.0

2016-12

CT#74

CP-160653

0486

Renaming of Emergency-Indication AVP

14.1.0

2016-12

CT#74

CP-160664

0491

Correction to change IETF drmp draft version to official RFC 7944

14.1.0

2016-12

CT#74

CP-160651

0492

Discontinuation of the I-WLAN feature

14.1.0

2017-03

CT#75

CP-170050

0493

1

DIAMETER_ERROR_ILLEGAL_EQUIPMENT code

14.2.0

2017-03

CT#75

CP-170044

0494

1

Emergency-Info AVP in Non-3GPP IP Access Registration response

14.2.0

2017-03

CT#75

CP-170049

0495

1

Addition of ERP support for TWAN Interworking

14.2.0

2017-03

CT#75

CP-170037

0496

1

Bit ordering in Diameter AVPs used as bit-masks

14.2.0

2017-03

CT#75

CP-170037

0497

1

Handling of AAA Failure Indication over SWa

14.2.0

2017-03

CT#75

CP-170037

0498

1

SWm Behaviour after Failed Re-Authorization

14.2.0

2017-03

CT#75

CP-170048

0499

1

Update of reference for the Diameter base protocol

14.2.0

2017-03

CT#75

CP-170048

0500

1

Handling of the Vendor-Specific-Application-Id

14.2.0

2017-06

CT#76

CP-171033

0466

1

NAI for emergency services over WLAN access to EPC

14.3.0

2017-06

CT#76

CP-171018

0503

1

Support for signaling transport level packet marking

14.3.0

2017-06

CT#76

CP-171035

0505

1

Only ERP Implicit Bootstrapping mode is supported in Rel-14

14.3.0

2017-06

CT#76

CP-171042

0507

Definition of Origination-Time-Stamp AVP

14.3.0

2017-09

CT#77

CP-172019

0509

1

Emergency sessions over untrusted WLAN with an unauthenticated IMSI

14.4.0

2017-09

CT#77

CP-172015

0511

PGW selection for WLAN with deployed DCNs

14.4.0

2017-09

CT#77

CP-172013

0514

Correction of DRMP Procedures

14.4.0

2017-09

CT#77

CP-172023

0508

MIP6-Feature-Vector over SWx

15.0.0

2017-09

CT#77

CP-172023

0512

3

External-ID in non-3GPP subscription profile

15.0.0

2017-12

CT#78

CP-173026

0515

Authorization procedure initiated by ePDG

15.1.0

2018-06

CT#80

CP-181123

0518

Full-Network-Name and Short-Network-Name AVPs

15.2.0

2019-03

CT#83

CP-190032

0519

1

Mobility between EPC/ePDG and 5GS

15.3.0

2019-09

CT#85

CP-192094

0521

2

draft-ietf-dime-load published as RFC 8583

15.4.0

2020-03

CT#87e

CP-200047

0522

APN-OI-Replacement not applicable for Emergency services

16.0.0

2020-06

CT#88e

CP-201053

0523

APN-OI-Replacement

16.1.0

2020-09

CT#89e

CP-202043

0525

1

AAA Deregistration

16.2.0

2021-03

CT#91e

CP-210027

0526

1

Use of Inclusive Language

17.0.0

2021-09

CT#93e

CP-212053

0528

1

D

Editorial correction on WLAN Location Information AVP name

17.1.0

2022-03

CT#95e

CP-220040

0529

1

F

29.273 Addition of MPS statement to Annex B

17.2.0

2022-03

CT#95e

CP-220053

0530

B

Non-Seamless WLAN offload in 5GS

17.2.0

2022-06

CT#96

CP-221030

0531

1

F

NSWO in 5GS

17.3.0

2022-09

CT#97e

CP-222034

0533

F

Corrections for NSWO in 5GS

17.4.0

2022-09

CT#97e

CP-222022

0532

F

Trust Relationship Indicator over SWx

18.0.0

2022-12

CT#98e

CP-223048

0536

A

Correcting a label in SUCI in NAI format

18.1.0

2022-12

CT#98e

CP-223038

0534

F

Experimental Result Codes for trusted / untrusted non-3GPP access not allowed

18.1.0