EPC 移动性管理附着流程故障处理

1、Security Level: HUAWEI TECHNOLOGIES CO., LTD.Page1修订记录课程编码课程编码适用产品适用产品产品版本产品版本课程版本课程版本ISSUEEB913307EPCV900R011C011.10开发开发/优化者优化者时间时间审核人审核人开发类型（新开发开发类型（新开发/优化）优化）杜孝亲20120323杜孝亲优化本页不打印Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. EPC EPC 移动性管理附着流移动性管理附着流程故障处理程故障处理(MME)(MME)Security

2、 Level: HUAWEI TECHNOLOGIES CO., LTD.参考资料参考资料3GPP 234013GPP 234013GPP 24301(MM/SM)3GPP 24301(MM/SM)3GPP 29272(S6a)3GPP 29272(S6a)Page3Security Level: HUAWEI TECHNOLOGIES CO., LTD.培训目标培训目标学完本课程后，您应该能：学完本课程后，您应该能： 掌握附着流程在MME内的深入处理机制 掌握信令类故障处理的方法和思路 掌握附着流程的高级故障处理Page4Security Level: HUAWEI TECHNOLOGIES

3、 CO., LTD.目目 录录1.1. 附着流程故障处理背景知识附着流程故障处理背景知识2.2. 附着流程故障分析处理附着流程故障分析处理Page5Security Level: HUAWEI TECHNOLOGIES CO., LTD.目目 录录1.1. 附着流程故障处理背景知识附着流程故障处理背景知识2.2. 附着流程故障分析处理附着流程故障分析处理Page6Security Level: HUAWEI TECHNOLOGIES CO., LTD.目目 录录1.1. 附着流程故障处理背景知识附着流程故障处理背景知识1.1 1.1 附着流程介绍附着流程介绍1.2 MME内部处理机制1.3 附

4、着流程故障处理思路Page7Security Level: HUAWEI TECHNOLOGIES CO., LTD.Attach with IMSI in 4GAttach with IMSI in 4GPage8UEeNodeBMMESGWHSSPGWAttach Request (with IMSI)Access Control by MME license/ data configuration Authentication Information RequestAuthentication Information ResponseAuthentication ResponseCrea

5、te Session RequestAuthentication RequestCreate Session ResponseInitial Context Setup Request(Attach Accept )Direct transfer (Attach Complete )RRC Connection Reconfiguration( Attach accept)Initial Context Setup ResponseUpdate Location RequestUpdate Location AnswerAccess Control by Subscribe data接入控制接

6、入控制安全流程安全流程位置更新位置更新缺省承缺省承载创载创建建Create Session RequestCreate Session ResponseModify Bearer RequestModify Bearer ResponseRRC Connection Reconfiguration CompleteSecurity Level: HUAWEI TECHNOLOGIES CO., LTD.目目 录录1.1. 附着流程故障处理背景知识附着流程故障处理背景知识1.1 附着流程介绍1.2 MME1.2 MME内部处理机制内部处理机制1.3 附着流程故障处理思路Page9Security

7、 Level: HUAWEI TECHNOLOGIES CO., LTD.接入控制内部处理过程接入控制内部处理过程Page10Attach requestHPLMN?Connect PLMN?NYYNYAccess control by IMSINIMSIHSS/DMPE?Default cause: EPS services not allowed in this PLMN可以通过SET EMMPROCTRL自定义Default cause: EPS services not allowed Controlled by command ADD S1ACCAREALSTRegional Roa

8、ming Restriction: ADD S1ACCAREALSTLicense/Resource LimitYNo response from MMENSecurity Level: HUAWEI TECHNOLOGIES CO., LTD.鉴权流程内部处理过程鉴权流程内部处理过程Page11Authentication set response Access control by IMSINAuthentication set request YIMSIHSS/DMPE?NYProtocol error, unspecified.可以通过SET EMMPROCTRL自定义Network

9、failure (#17)可以通过SET EMMPROCTRL自定义DIAMETER_ERROR_USER_UNKNOWNEPS services and non-EPS services not allowed(#8)(可配置)Wrong K/OPIllegal UE(#3)Unknown subs in HLRAuthentication failureNAuthentication request/ response No response from UEIllegal UE(#3)Authentication failureNo response form HLRNetwork fai

10、lure (#17)可以通过SET EMMPROCTRL自定义Illegal UEIllegal UE(#3)Authentication failureDIAMETER ERROR UNKNOWN EPS SUBSCRIPTIONEPS Subs Unknown No suitable cells in tracking area(#15)(可配置)Security Level: HUAWEI TECHNOLOGIES CO., LTD.位置更新内部处理过程位置更新内部处理过程Page12Update locationDIAMETER_ERROR_USER_UNKNOWNEPS servic

11、es and non-EPS services not allowed(#8) (可配置)DIAMETER ERROR UNKNOWN EPS SUBSCRIPTIONEPS Subs Unknown Access control by subscribed dataZone code restrict PLMN not allowed (#11)(可配置)Roaming not allowedARD restrictEPS services not allowed (#7) (可通过ADD S1ARD配置)Restrict according to APNNIDIAMETER_ERROR_R

12、OAMING_NOT_ALLOWEDNo suitable cells in tracking area (#15) OrRoaming not allowed in this tracking area(#13) Unknown subsDIAMETER_ERROR_RAT_NOT_ALLOWEDRAT not allowedNo suitable cells in tracking area(#15)(可配置)EPS services not allowed (#7) (可通过ADD S1ARD配置)Authentication request/ response No suitable

13、cells in tracking area(#15)(可配置)Security Level: HUAWEI TECHNOLOGIES CO., LTD.缺省承载建立内部处理过程缺省承载建立内部处理过程Page13Default Bearer Creation DefaultBearer Creating FailedESM failur(#19)其他因素导致的承载激活失败终端无应答ACTIVATE DEFAULT EPS BEARER CONTEXT ACCEPT/ Attach CompleteDefaultBearer Creating FailedESM failur(#19)Acce

14、ss control by subscribed dataSecurity Level: HUAWEI TECHNOLOGIES CO., LTD.原因值（原因值（PLMNPLMN配置配置/S6a/S6a接口故接口故障）障）SET EMMPROCTRLSET EMMPROCTRL 在用户接入S1模式时，USN9810可通过该命令控制MM流程进行特殊处理以及特殊场景下指定的原因值下发，以满足运营商实现对现网设备兼容性特殊控制的需求。 Page14Security Level: HUAWEI TECHNOLOGIES CO., LTD.Cause Value(Cause Value(Regiona

15、l Regional Roaming RestrictionRoaming Restriction) )ADD S1ACCAREALSTADD S1ACCAREALST 区域漫游限制用户：可以限制特定的用户在特定的跟踪区内的接接入策略及拒绝原因值的配置。Page15Security Level: HUAWEI TECHNOLOGIES CO., LTD.Cause Value(Cause Value(Access Access control by subscribed control by subscribed datadata) )ADD S1ARDADD S1ARD 可以配置是否拒绝终端

16、的原因值Page16Security Level: HUAWEI TECHNOLOGIES CO., LTD.接入控制原因值接入控制原因值故障原因值故障原因值限制类别限制类别解决办法解决办法No suitable cells in tracking area (#15) Roaming not allowed in this tracking area(#13) ZC限制1.检查HSS签约数据2.检查ZC配置数据EPS services not allowed (#7) (可通过ADD S1ARD配置)ARD限制1.检查HSS签约数据2.检查ADD S1ARDEPS services not

17、allowed (#7) (可通过ADD S1ARD配置)APNNI限制1.检查HSS签约数据2.检查ADD S1ARDPage17Security Level: HUAWEI TECHNOLOGIES CO., LTD.目目 录录1.1. 附着流程故障处理背景知识附着流程故障处理背景知识1.1 附着流程介绍1.2 MME内部处理机制1.3 1.3 附着流程故障处理思路附着流程故障处理思路Page18Security Level: HUAWEI TECHNOLOGIES CO., LTD.附着流程故障分析思路附着流程故障分析思路附着流程的故障分析思路如下：附着流程的故障分析思路如下： 1、确定

18、网元范围； 2、确定故障影响范围，初步定位故障点； 所有用户附着失败 部分用户附着失败 个别用户附着失败 3、确定流程中的故障点 （B3FA）Page19Security Level: HUAWEI TECHNOLOGIES CO., LTD.确定相关网元，确定故障范围确定相关网元，确定故障范围Page20eNodeBeNodeBeNodeB本网用户漫游用户RouterMMESGWSGWSGWHSSLocal PLMNHSSOther PLMNPGWPGWSecurity Level: HUAWEI TECHNOLOGIES CO., LTD.Page21确定流程中的故障点确定流程中的故障点S

19、ecurity Level: HUAWEI TECHNOLOGIES CO., LTD.B3FAB3FA分析方法分析方法故障现象故障现象流程模块流程模块失效模式失效模式分析思路分析思路可能原因可能原因排查方法排查方法解决措施解决措施本网元处理失效输入异常处理异常输出异常对端网元无响应失效是否选择正确的对端网元对端网元状态异常消息收发异常对端网元输出失效输入异常处理异常输出异常Page22Security Level: HUAWEI TECHNOLOGIES CO., LTD.目目 录录1.1. 附着流程故障处理背景知识附着流程故障处理背景知识2.2. 附着流程故障分析处理附着流程故障分析处理P

20、age23Security Level: HUAWEI TECHNOLOGIES CO., LTD.目目 录录2.2. 附着流程故障分析处理附着流程故障分析处理2.1 2.1 接口故障接口故障2.2 接入故障2.3 安全流程故障2.4 位置更新故障2.5 缺省承载建立故障Page24Security Level: HUAWEI TECHNOLOGIES CO., LTD.接口故障接口故障Page25UEeNodeBMMESGWHSSPGWAttach Request (with IMSI)X故障现象故障现象流程模块流程模块失效模式失效模式分析思路分析思路可能原因可能原因排查方法排查方法解决措施

21、解决措施跟踪不到用户发起的Attach Request消息Security Level: HUAWEI TECHNOLOGIES CO., LTD.接口故障接口故障Page26UEeNodeBMMESGWHSSPGWAttach Request (with IMSI)X故障现象故障现象流程模块流程模块失效模式失效模式分析思路分析思路可能原因可能原因排查方法排查方法解决措施解决措施跟踪不到用户发起的Attach Request消息接入控制本网元处理失效输入异常?Security Level: HUAWEI TECHNOLOGIES CO., LTD.接口故障分析思路接口故障分析思路l根据信令跟踪

22、，若看不到MS发起的“Attach Request”消息，表明S1接口出现故障。l接口故障按照协议栈从下到上逐步排查。Page27S1-APSCTPIPL2L1S1-APSCTPIPL2L1eNodeBMMES1-MMESecurity Level: HUAWEI TECHNOLOGIES CO., LTD.接口故障接口故障Page28UEeNodeBMMESGWHSSPGWAttach Request (with IMSI)X故障现象故障现象流程模块流程模块失效模式失效模式分析思路分析思路可能原因可能原因排查方法排查方法解决措施解决措施跟踪不到用户发起的Attach Request消息接入控

23、制本网元处理失效输入异常S1接口硬件故障查看告警更换硬件S1接口IP路由故障PING检查数据配置、IP设备状态S1接口链路故障DSP S1APLNK检查数据配置S1PAGING表未上报LST S1PAGING检查eNodeB侧数据配置Security Level: HUAWEI TECHNOLOGIES CO., LTD.目目 录录2.2. 附着流程故障分析处理附着流程故障分析处理2.1 接口故障2.2 2.2 接入故障接入故障2.3 安全流程故障2.4 位置更新故障2.5 缺省承载建立故障Page29Security Level: HUAWEI TECHNOLOGIES CO., LTD.接

24、入故障案例接入故障案例1 1Page30UEeNodeBMMESGWHSSPGWAttach Request (with IMSI)Attach RejectCause: EPS services not allowed in this PLMN(#14)Control by command SET EMMPROCTRL故障现象故障现象流程模流程模块块失效模式失效模式分析思路分析思路可能原因可能原因排查方法排查方法解决措施解决措施MME收到“Attach Request”消息，立即发送“Attach Reject”，拒绝原因值为“EPS services not allowed in this

25、 PLMN”。Security Level: HUAWEI TECHNOLOGIES CO., LTD.接入故障案例接入故障案例1 1Page31UEeNodeBMMESGWHSSPGWAttach Request (with IMSI)Attach RejectCause: EPS services not allowed in this PLMN(#14)Control by command SET EMMPROCTRL故障现象故障现象流程模流程模块块失效模式失效模式分析思路分析思路可能原因可能原因排查方法排查方法解决措施解决措施MME收到“Attach Request”消息，立即发送“A

26、ttach Reject”，拒绝原因值为“EPS services not allowed in this PLMN”。接入控制本网元处理失效处理异常？Security Level: HUAWEI TECHNOLOGIES CO., LTD.接入故障案例接入故障案例1 1：分析思路：分析思路Page32UEeNodeBMMESGWHSSPGWAttach Request (with IMSI)Attach RejectCause: EPS services not allowed in this PLMN(#14)Attach requestHPLMN?Connect PLMN?NYYNDef

27、ault cause: EPS services not allowed in this PLMN可以通过SET EMMPROCTRL自定义License/Resource LimitYNo response from MMENSecurity Level: HUAWEI TECHNOLOGIES CO., LTD.接入故障案例接入故障案例1 1Page33UEeNodeBMMESGWHSSPGWAttach Request (with IMSI)Attach RejectCause: EPS services not allowed in this PLMN(#14)Control by c

28、ommand SET EMMPROCTRL故障现象故障现象流程模流程模块块失效模式失效模式分析思路分析思路可能原因可能原因排查方法排查方法解决措施解决措施MME收到“Attach Request”消息，立即发送“Attach Reject”，拒绝原因值为“EPS services not allowed in this PLMN”。接入控制本网元处理失效处理异常本网用户，MME未配置HPLMNLST HPLMNADD HPLMN他网用户，MME未配置CONNECTPLMNLST CONNECTPLMNADD CONNECTPLMN1, No configuration in ADD HPLMN

29、/ ADD CONNCECTPLMNSecurity Level: HUAWEI TECHNOLOGIES CO., LTD.接入故障案例接入故障案例2 2Page34UEeNodeBMMESGWHSSPGWAttach Request (with IMSI)故障现象故障现象流程模流程模块块失效模式失效模式分析思路分析思路可能原因可能原因排查方法排查方法解决措施解决措施MME收到“Attach Request”消息，不做任何处理，无返回消息和错误原因值。XSecurity Level: HUAWEI TECHNOLOGIES CO., LTD.接入故障案例接入故障案例2 2Page35UEeN

30、odeBMMESGWHSSPGWAttach Request (with IMSI)故障现象故障现象流程模流程模块块失效模式失效模式分析思路分析思路可能原因可能原因排查方法排查方法解决措施解决措施MME收到“Attach Request”消息，不做任何处理，无返回消息和错误原因值。接入控制本网元处理失效处理异常？XSecurity Level: HUAWEI TECHNOLOGIES CO., LTD.接入故障案例接入故障案例2 2：分析思路：分析思路Page36UEeNodeBMMESGWHSSPGWAttach Request (with IMSI)XAttach requestHPLMN

31、?Connect PLMN?NYYNDefault cause: EPS services not allowed in this PLMN可以通过SET EMMPROCTRL自定义License/Resource LimitYNo response from MMENSecurity Level: HUAWEI TECHNOLOGIES CO., LTD.接入故障案例接入故障案例2 2Page37UEeNodeBMMESGWHSSPGWAttach Request (with IMSI)故障现象故障现象流程模流程模块块失效模式失效模式分析思路分析思路可能原因可能原因排查方法排查方法解决措施解

32、决措施MME收到“Attach Request”消息，不做任何处理，无返回消息和错误原因值。接入控制本网元处理失效处理异常License失效检查告警更换license用户数超过license限制检查告警扩容license用户数拥塞检查告警扩容单板X1, 4G User number reaches the license limitation: sum of Maximum number of 4G subscribers;2, User congestionSecurity Level: HUAWEI TECHNOLOGIES CO., LTD.接入故障案例接入故障案例3 3Page38UE

33、eNodeBMMESGWHSSPGWAttach Request (with IMSI)Attach RejectCause: EPS services not allowed (#7)Control by command ADD S1ACCAREALST故障现象故障现象流程模流程模块块失效模式失效模式分析思路分析思路可能原因可能原因排查方法排查方法解决措施解决措施MME在收到“Attach Request”消息后立即拒绝了MS的附着请求，拒绝原因值为“EPS services not allowed”Security Level: HUAWEI TECHNOLOGIES CO., LTD.接

34、入故障案例接入故障案例3 3Page39UEeNodeBMMESGWHSSPGWAttach Request (with IMSI)Attach RejectCause: EPS services not allowed (#7)Control by command ADD S1ACCAREALST故障现象故障现象流程模流程模块块失效模式失效模式分析思路分析思路可能原因可能原因排查方法排查方法解决措施解决措施MME在收到“Attach Request”消息后立即拒绝了MS的附着请求，拒绝原因值为“EPS services not allowed”接入控制本网元处理失效处理异常？输出异常？Sec

35、urity Level: HUAWEI TECHNOLOGIES CO., LTD.接入故障案例接入故障案例3 3：分析思路：分析思路Page40UEeNodeBMMESGWHSSPGWAttach Request (with IMSI)Attach RejectYAccess control by IMSINIMSIHSS/DMPE?Default cause: EPS services not allowed Controlled by command ADD S1ACCAREALSTRegional Roaming Restriction: ADD S1ACCAREALSTLicense

36、/Resource LimitYNo response from MMENCause: EPS services not allowed (#7)Control by command ADD S1ACCAREALSTSecurity Level: HUAWEI TECHNOLOGIES CO., LTD.接入故障案例接入故障案例3 3Page41UEeNodeBMMESGWHSSPGWAttach Request (with IMSI)Attach RejectCause: EPS services not allowed (#7)Control by command ADD S1ACCARE

37、ALST故障现象故障现象流程模流程模块块失效模式失效模式分析思路分析思路可能原因可能原因排查方法排查方法解决措施解决措施MME在收到“Attach Request”消息后立即拒绝了MS的附着请求，拒绝原因值为“EPS services not allowed”接入控制本网元处理失效输出异常根据用户IMSI号段进行漫游限制LST S1ACCAREALST无需处理1, Roaming restricted according to IMSI in command ADD S1ACCAREALSTSecurity Level: HUAWEI TECHNOLOGIES CO., LTD.接入故障总结接

38、入故障总结Page42UEeNodeBMMESGWHSSPGWAttach Request (with IMSI)Attach RejectAttach RejectCause: EPS services not allowed in this PLMN(#14)Control by command SET EMMPROCTRLHPLMN / Connect PLMN1, No configuration in ADD HPLMN/ ADD CONNCECTPLMN1, 4G User number reaches the license limitation: sum of Maximum

39、number of 4G subscribers;2, User congestionAttach Request (with IMSI)XLicense /Resource LimitAttach Request (with IMSI)Access Control by IMSI1, Roaming restricted according to IMSI in command ADD S1ACCAREALSTCause: EPS services not allowed (#7)Control by command ADD S1ACCAREALSTSecurity Level: HUAWE

40、I TECHNOLOGIES CO., LTD.目目 录录2.2. 附着流程故障分析处理附着流程故障分析处理2.1 接口故障2.2 接入故障2.3 2.3 安全流程故障安全流程故障2.4 位置更新故障2.5 缺省承载建立故障Page43Security Level: HUAWEI TECHNOLOGIES CO., LTD.目目 录录2.2. 附着流程故障分析处理附着流程故障分析处理2.3 2.3 安全流程故障安全流程故障2.3.1 2.3.1 取鉴权集流程故障取鉴权集流程故障2.3.2 鉴权流程故障Page44Security Level: HUAWEI TECHNOLOGIES CO.,

41、LTD.取鉴权集流程故障案例取鉴权集流程故障案例1 1Page45UEeNodeBMMESGWHSSPGWAttach Request (with IMSI)Attach RejectHPLMN / Connect PLMNLicense /Resource LimitAccess Control by IMSICause: Protocol error, unspecified. (#111)Control by command SET EMMPROCTRL故障现象故障现象流程模流程模块块失效模式失效模式分析思路分析思路可能原因可能原因排查方法排查方法解决措施解决措施用户发起附着请求，MME

42、直接回附着拒绝，带原因值“Protocol error, unspecified” 。 Security Level: HUAWEI TECHNOLOGIES CO., LTD.取鉴权集流程故障案例取鉴权集流程故障案例1 1Page46UEeNodeBMMESGWHSSPGWAttach Request (with IMSI)Attach RejectHPLMN / Connect PLMNLicense /Resource LimitAccess Control by IMSICause: Protocol error, unspecified. (#111)Control by comma

43、nd SET EMMPROCTRL故障现象故障现象流程模流程模块块失效模式失效模式分析思路分析思路可能原因可能原因排查方法排查方法解决措施解决措施用户发起附着请求，MME直接回附着拒绝，带原因值“Protocol error, unspecified” 。 取鉴权集流程对端网元无响应失效是否选择正确的对端网元？Security Level: HUAWEI TECHNOLOGIES CO., LTD.取鉴权集流程故障案例取鉴权集流程故障案例1 1：分析：分析思路思路Page47UEeNodeBMMESGWHSSPGWAttach Request (with IMSI)Attach RejectH

44、PLMN / Connect PLMNLicense /Resource LimitAccess Control by IMSICause: Protocol error, unspecified. (#111)Control by command SET EMMPROCTRLAccess control by IMSINAuthentication set request IMSIHSS/DMPE?NYProtocol error, unspecified.可以通过SET EMMPROCTRL自定义Network failure (#17)可以通过SET EMMPROCTRL自定义NSecu

45、rity Level: HUAWEI TECHNOLOGIES CO., LTD.取鉴权集流程故障案例取鉴权集流程故障案例1 1Page48UEeNodeBMMESGWHSSPGWAttach Request (with IMSI)Attach RejectHPLMN / Connect PLMNLicense /Resource LimitAccess Control by IMSICause: Protocol error, unspecified. (#111)Control by command SET EMMPROCTRL故障现象故障现象流程模流程模块块失效模式失效模式分析思路分析思

46、路可能原因可能原因排查方法排查方法解决措施解决措施用户发起附着请求，MME直接回附着拒绝，带原因值“Protocol error, unspecified” 。 取鉴权集流程对端网元无响应失效是否选择正确的对端网元IMSIHSS配置问题LST IMSIHSSADD IMSIHSSDMPE配置问题LST DMPEADD DMPEDMRT配置问题LST DMRTADD DMRT1, No configuration in ADD IMSIHSS/ ADD DMPESecurity Level: HUAWEI TECHNOLOGIES CO., LTD.取鉴权集流程故障案例取鉴权集流程故障案例2 2

47、Page49UEeNodeBMMESGWHSSPGWAttach Request (with IMSI)Attach RejectCause: Cause: Network failure (#17)Control by command SET EMMPROCTRL故障现象故障现象流程模流程模块块失效模式失效模式分析思路分析思路可能原因可能原因排查方法排查方法解决措施解决措施用户发起附着请求，MME直接回附着拒绝，带原因值“Network failure ” 。 Security Level: HUAWEI TECHNOLOGIES CO., LTD.取鉴权集流程故障案例取鉴权集流程故障案例2

48、 2Page50UEeNodeBMMESGWHSSPGWAttach Request (with IMSI)Attach RejectCause: Cause: Network failure (#17)Control by command SET EMMPROCTRL故障现象故障现象流程模流程模块块失效模式失效模式分析思路分析思路可能原因可能原因排查方法排查方法解决措施解决措施用户发起附着请求，MME直接回附着拒绝，带原因值“Network failure ” 。 取鉴权集流程对端网元无响应失效对端网元状态异常？Security Level: HUAWEI TECHNOLOGIES CO.,

49、 LTD.取鉴权集流程故障案例取鉴权集流程故障案例2 2：分析：分析思路思路Page51UEeNodeBMMESGWHSSPGWAttach Request (with IMSI)Attach RejectCause: Cause: Network failure (#17)Control by command SET EMMPROCTRLAccess control by IMSINAuthentication set request IMSIHSS/DMPE?NYProtocol error, unspecified.可以通过SET EMMPROCTRL自定义Network failure

50、 (#17)可以通过SET EMMPROCTRL自定义NSecurity Level: HUAWEI TECHNOLOGIES CO., LTD.取鉴权集流程故障案例取鉴权集流程故障案例2 2Page52UEeNodeBMMESGWHSSPGWAttach Request (with IMSI)Attach RejectCause: Cause: Network failure (#17)Control by command SET EMMPROCTRL故障现象故障现象流程模块流程模块失效模式失效模式分析思路分析思路可能原因可能原因排查方法排查方法解决措施解决措施用户发起附着请求，MME直接回

51、附着拒绝，带原因值“Network failure ” 。 取鉴权集流程对端网元无响应失效对端网元状态异常S6a接口硬件故障查看告警更换硬件S6a接口IP路由故障PING检查数据配置、IP设备状态S6a接口链路故障DSP DMLNK检查数据配置对端DMPE状态异常DSP DMPE检查数据配置1, S6a interface failureSecurity Level: HUAWEI TECHNOLOGIES CO., LTD.取鉴权集流程故障案例取鉴权集流程故障案例3 3Page53UEeNodeBMMESGWHSSPGWAttach Request (with IMSI)Authentica

52、tion Information RequestAttach RejectCause: Cause: Network failure (#17)Control by command SET EMMPROCTRL故障现象故障现象流程模流程模块块失效模式失效模式分析思路分析思路可能原因可能原因排查方法排查方法解决措施解决措施用户发起附着请求，MME发出了“Authentication Information Request”消息，但是没有收到HSS返回的响应消息。MME附着拒绝原因值“Network failure ” 。 Security Level: HUAWEI TECHNOLOGIES C

53、O., LTD.取鉴权集流程故障案例取鉴权集流程故障案例3 3Page54UEeNodeBMMESGWHSSPGWAttach Request (with IMSI)Authentication Information RequestAttach RejectCause: Cause: Network failure (#17)Control by command SET EMMPROCTRL故障现象故障现象流程模流程模块块失效模式失效模式分析思路分析思路可能原因可能原因排查方法排查方法解决措施解决措施用户发起附着请求，MME发出了“Authentication Information Req

54、uest”消息，但是没有收到HSS返回的响应消息。MME附着拒绝原因值“Network failure ” 。 取鉴权集流程对端网元无响应失效消息收发异常？Security Level: HUAWEI TECHNOLOGIES CO., LTD.取鉴权集流程故障案例取鉴权集流程故障案例3 3：分析：分析思路思路Page55UEeNodeBMMESGWHSSPGWAttach Request (with IMSI)Authentication Information RequestAttach RejectCause: Cause: Network failure (#17)Control by

55、 command SET EMMPROCTRLAuthentication Information ResponseXXXtAuthentication set response Authentication set request YUnknown subs in HLRNo response form HLREPS Subs Unknown Security Level: HUAWEI TECHNOLOGIES CO., LTD.取鉴权集流程故障案例取鉴权集流程故障案例3 3Page56UEeNodeBMMESGWHSSPGWAttach Request (with IMSI)Authen

56、tication Information RequestAttach RejectCause: Cause: Network failure (#17)Control by command SET EMMPROCTRL故障现象故障现象流程模流程模块块失效模失效模式式分析思分析思路路可能原因可能原因排查方法排查方法解决措施解决措施用户发起附着请求，MME发出了“Authentication Information Request”消息，但是没有收到HSS返回的响应消息。MME附着拒绝原因值“Network failure ” 。 取鉴权集流程对端网元无响应失效消息收发异常请求消息丢失检查HSS是

57、否收到消息检查信令路径中相关设备HSS无响应检查HSS是否发出响应消息检查HSS数据配置、模块工作状态。响应消息丢失检查HSS是否发出响应消息检查信令路径中相关设备响应消息超时检查MME是否收到响应消息排查响应消息超时发送的故障点No response from HSSSecurity Level: HUAWEI TECHNOLOGIES CO., LTD.取鉴权集流程故障案例取鉴权集流程故障案例4 4Page57UEeNodeBMMESGWHSSPGWAttach Request (with IMSI)Authentication Information RequestAuthenticat

58、ion Information ResponseAttach RejectCause: EPS services and non-EPS services not allowed(#8) Control by command SET EMMPROCTRL故障现象故障现象流程模流程模块块失效模式失效模式分析思路分析思路可能原因可能原因排查方法排查方法解决措施解决措施MME收到HSS返回的取鉴权集响应消息之后，拒绝用户附着，原因值为EPS services and non-EPS services not allowed(#8) Security Level: HUAWEI TECHNOLOGIE

59、S CO., LTD.取鉴权集流程故障案例取鉴权集流程故障案例4 4Page58UEeNodeBMMESGWHSSPGWAttach Request (with IMSI)Authentication Information RequestAuthentication Information ResponseAttach RejectCause: EPS services and non-EPS services not allowed(#8) Control by command SET EMMPROCTRL故障现象故障现象流程模流程模块块失效模式失效模式分析思路分析思路可能原因可能原因排查

60、方法排查方法解决措施解决措施MME收到HSS返回的取鉴权集响应消息之后，拒绝用户附着，原因值为EPS services and non-EPS services not allowed(#8) 取鉴权集流程对端网元输出失效输出异常?Security Level: HUAWEI TECHNOLOGIES CO., LTD.取鉴权集流程故障案例取鉴权集流程故障案例4 4：分析：分析思路思路Page59UEeNodeBMMESGWHSSPGWAttach Request (with IMSI)Authentication Information RequestAuthentication Infor