직경 오류 코드 트러블슈팅: "IP-CAN_SESSION_NOT_AVAILABLE (5065)" in CPS

업데이트:2023년 8월 24일

문서 ID:218436

편견 없는 언어

본 제품에 대한 문서 세트는 편견 없는 언어를 사용하기 위해 노력합니다. 본 설명서 세트의 목적상, 편견 없는 언어는 나이, 장애, 성별, 인종 정체성, 민족 정체성, 성적 지향성, 사회 경제적 지위 및 교차성에 기초한 차별을 의미하지 않는 언어로 정의됩니다. 제품 소프트웨어의 사용자 인터페이스에서 하드코딩된 언어, RFP 설명서에 기초한 언어 또는 참조된 서드파티 제품에서 사용하는 언어로 인해 설명서에 예외가 있을 수 있습니다. 시스코에서 어떤 방식으로 포용적인 언어를 사용하고 있는지 자세히 알아보세요.

이 번역에 관하여

Cisco는 전 세계 사용자에게 다양한 언어로 지원 콘텐츠를 제공하기 위해 기계 번역 기술과 수작업 번역을 병행하여 이 문서를 번역했습니다. 아무리 품질이 높은 기계 번역이라도 전문 번역가의 번역 결과물만큼 정확하지는 않습니다. Cisco Systems, Inc.는 이 같은 번역에 대해 어떠한 책임도 지지 않으며 항상 원본 영문 문서(링크 제공됨)를 참조할 것을 권장합니다.

소개

이 문서에서는 지름 오류 코드를 처리하기 위한 다양한 조사 방법에 대해 설명합니다.IP-CAN_SESSION_NOT_AVAILABLE (5065)" CPS(Cisco Policy Suite)에 있습니다.

사전 요구 사항

요구 사항

다음 주제에 대한 지식을 보유하고 있으면 유용합니다.

Linux
CPS
PCRF(Policy Control Charge Rule Function)
지름

참고: CPS CLI에 대한 루트 액세스 권한이 있어야 합니다.

사용되는 구성 요소

이 문서의 정보는 CPS 21.1을 기반으로 합니다.

이 문서의 정보는 특정 랩 환경의 디바이스를 토대로 작성되었습니다. 이 문서에 사용된 모든 디바이스는 초기화된(기본) 컨피그레이션으로 시작되었습니다. 현재 네트워크가 작동 중인 경우 모든 명령의 잠재적인 영향을 미리 숙지하시기 바랍니다.

배경 정보

직경 오류 코드: "IP-CAN_SESSION_NOT_AVAILABLE (5065)" PCRF에서 일반적으로 볼 수 있는 직경 실험 결과 코드입니다. Voice over Long-Term Evolution (VoLTE) services.

이 오류는 정상적인 VoLTE 시스템에 대해 생성되지 않습니다. 이 문서에서 이 오류가 보고되는 몇 가지 시나리오와 이러한 오류를 해결하기 위한 다양한 접근 방식이 있습니다.

일반적으로 PCRF가 Rx 세션과 Gx 세션 간의 세션 바인딩을 수행하지 못하면 Application Function (AF) Experimental-Result-Code AVP(Attribute Value Pair)가 값으로 설정된 AA-Answer가 포함된 경우 IP-CAN_SESSION_NOT_AVAILABLE (5065) ".

문제

시나리오 1

GX_(CCR-I) 및 Rx_AAR에서 Framed-IP-Prefix AVP 값의 차이

Rx-Gx 세션 바인딩에 대한 기본 규칙은 동일함을 기반으로 합니다 Framed-IPv6-Prefix 수신처 Gx_Credit Control Request Initial (CCR-I) 543 Gx 세션 생성 및 Rx_Authorization Authentication Request (AAR) Rx 세션 생성

이 시나리오에서는 의 모든 오류 샘플이 IP-CAN_SESSION_NOT_AVAILABLE (5065) 특정 목록에서 보고됨 Framed-IPv6-Prefix. 다음 Framed-IPv6-Prefixes 보고되지 않음 Gx_CCR-I .

이 CLI는 고유한 목록 및 총 개수를 제공합니다 Framed-IPv6-Prefix이 경우 IP-CAN_SESSION_NOT_AVAILABLE (5065) CPS에서 다음으로 되돌림 AF.

[root@LAB-PCRF02CO-pcrfclient01 broadhop]# zgrep -B80 "IP-CAN_SESSION_NOT_AVAILABLE" consolidated-engine.*.gz | grep "Framed-IPv6-Prefix:" | cut -f3,4,5 -d: | sort| uniq -c
      6  2402:XXXX:YYYY
      3  2402:PPPP:QQQQ
      1  2402:JJJJ:KKKK

이 CLI는 고유한 목록 및 카운트를 제공합니다 Framed-IPv6-Prefix 보고됨 Gx_CCR-I 발신 Packet Data Network Gateway (PGW) .

[root@LAB-PCRF02CO-pcrfclient01 broadhop]# zgrep -A 50 CCR-I consolidated-engine.*.gz | grep Framed-IPv6-Prefix: | cut -f 3,4,5 -d: | sort | uniq -c
    115  2402:AAAA:BBBB
    116  2402:NNNN:MMMM
    246  2402:SSSS:RRRR

참고: CLI를 실행하려면 CPS의 pcrfclient01에 로그인하고 /var/log/broadhop/ 디렉터리에 저장할 수 있습니다.

건강한 시스템에 대한 기대는 Framed-IPv6-Prefix수신처 Gx_CCR-I 및 Rx_AAR Gm IP(PGW에서 AF로)에 할당된 동일한 IP 접두사 풀에서 가져와야 합니다.

이 시나리오에서는 수집된 모든 장애 샘플에 대해 Framed-IP-Prefix 보고됨 Rx_AAR Firepower Threat Defense와 Framed-IP-Prefix 수신 Gx_CCR-I.

시나리오 2

CPS에 설정된 Gx 오래된 세션 타이머 및 세션 만료 타이머의 모순

1. Gx 오래된 세션 타이머는 무엇입니까?

이 타이머는 지정된 Gx 세션에 대한 메시지가 수신되거나 전송될 때마다 작동됩니다. 타이머가 만료되면 Gx_Re-Auth-Request (RAR) 전송 대상 Re-Auth-Request-Type AVP 다음으로 설정 AUTHORIZE_ONLY (0) PGW로의 GX 세션 Result-Code AVP 값이 (으)로 설정된 상태에서 RAA(Gx_Re-Auth-Answer)가 수신된 경우 DIAMETER_UNKNOWN_SESSION_ID (5002) 또는 DIAMETER_UNABLE_TO_COMPLY (5012) gx 세션이 오래된 것으로 간주되어 PCRF 내부 데이터베이스에서 제거됩니다. Gx 인터페이스를 통한 모든 활동 (Gx_RAR/Gx_CCR) 타이머가 재설정됩니다.

2. 세션 만료 타이머란 무엇입니까?

타이머 세트 내에서 어떤 메시지도 수신되지 않으면, 세션은 PCRF로부터 제거된다.

문제가 되는 시나리오에서 타이머는 다음과 같이 설정됩니다.

Gx 부실 세션 타이머: 180분

세션 만료 시간: 240분

타이머 구성에 따라 180분 후 Keep alive RAR이 생성되어 PGW로 전송되며 세션이 240분 동안 비활성 상태이면 PCRF DB에서 세션이 제거됩니다.

여러 가지 이유로 인해 Keep alive RAR이 누락되면 [Gx 인터페이스 플랩, PGW out of service, or any corner case] 세션이 만료 시간에 도달하며, 동시에 AF에서 받은 Rx_AAR이 있으면 이 오류가 표시되고 Gx_RAR이 PGW로 전송됩니다. Session-Release-Cause: UNSPECIFIED_REASON (0).

INFO   : (core) Deletion started at Wed Oct 19 07:07:03 IST 2022
WARN   : (core) Resending original message since the existing session is in deletion and this session triggered a start

Message: com.broadhop.diameter2.messages.DiameterRequestMessage
                Timestamp: 2022-10-19 01:37:03,676
                Application Id: Gx (16777238)
                Command Code: Gx_RAR (258)
                Dest host: 0006-diamproxy.lab.cisco.com
                Dest realm: vpcrf.cisco.com
                Device protocol: GX_TGPP
                End to end id: 0 (0x00000000)
                Hop by hop id: 0 (0x00000000)
                Origin state: 0
                Stack name: null
                Origin realm: x.x.x.x
                Session-Id: 0006-diamproxy.lab.cisco.com;1200190897;28719897;634ebb76-11902
                Auth-Application-Id: 16777238
                Re-Auth-Request-Type: AUTHORIZE_ONLY (0)
                Session-Release-Cause: UNSPECIFIED_REASON (0)

또한, Gx 세션은 PCRF에서 소프트 삭제로 표시됩니다. PCRF가 Gx 세션을 바인딩하지 못했으므로 Rx_AAA는 값으로 설정된 Experimental-Result-Code AVP로 응답합니다 IP-CAN_SESSION_NOT_AVAILABLE (5065).

다음은 시나리오를 설명하는 전체 통화 흐름입니다.

=========================================================================
LAB-PCRF02-qns05  [2022-10-19 07:07:03,676] ===============================================
POLICY RESULT SUCCESS:
        session action = Delete
        domainId = IMS
        locationId = ims
        SERVICES: IMS_DEFAULT
        TRIGGER: Message: com.broadhop.diameter2.messages.DiameterRequestMessage
                Timestamp: 2022-10-19 01:37:03,673
                Application Id: Rx (16777236)
                Command Code: Rx_AAR (265)
                Dest realm: x.x.x.x
                Device protocol: RX_TGPP
                End to end id: 1274920388 (0x4bfdbdc4)
                Hop by hop id: 3440610237 (0xcd138bbd)
                Origin state: 0
                Stack name: null
                Origin host: x.x.x.x
                Origin realm: x.x.x.x
                Session-Id: x.x.x.x;168440;1;5.3576663599.2;pcsf.ims322-002
                Auth-Application-Id: 16777236
                Media-Component-Description:
                                Media-Component-Number: 1
                                Media-Sub-Component:
                                                Flow-Number: 1
                                                Flow-Description: permit in 17 from xxxx:xxxx:xxxx:xxxx:xxxx:xxxx  to xxxx:xxxx:xxxx:xxxx:xxxx:xxxx
                                                Flow-Description: permit out 17 from xxxx:xxxx:xxxx:xxxx:xxxx:xxxx to xxxx:xxxx:xxxx:xxxx:xxxx:xxxx
                                Media-Sub-Component:
                                                Flow-Number: 2
                                                Flow-Description: permit in 17 from xxxx:xxxx:xxxx:xxxx:xxxx:xxxx  to xxxx:xxxx:xxxx:xxxx:xxxx:xxxx
                                                Flow-Description: permit out 17 from xxxx:xxxx:xxxx:xxxx:xxxx:xxxx to xxxx:xxxx:xxxx:xxxx:xxxx:xxxx
                                                Flow-Usage: RTCP (1)
                                Codec-Data: downlink\r\noffer\r\nm=audio 23096 RTP/AVP 108 102 8 18 100 101 116\r\na=rtpmap:108 AMR/8000\r\na=fmtp:108 mode-set=0,2,4,7; mode-change-period=2;                                        Codec-Data: uplink\r\nanswer\r\nm=audio 41660 RTP/AVP 108 116\r\na=rtpmap:108 AMR/8000/1\r\na=ptime:20\r\na=maxptime:240\r\na=rtpmap:116 telephone-event/
                                Media-Type: AUDIO (0)
                                Max-Requested-Bandwidth-UL: 37000
                                Max-Requested-Bandwidth-DL: 37000
                                Flow-Status: ENABLED (2)
                                RS-Bandwidth: 462
                                RR-Bandwidth: 1387
                Subscription-Id:
                                Subscription-Id-Type: END_USER_SIP_URI (2)
                                Subscription-Id-Data: sip:+91XXXXXXXXXX
                AF-Charging-Identifier: ABCA4C23EA4C0320221019772
                Specific-Action: INDICATION_OF_LOSS_OF_BEARER (2)
                Specific-Action: INDICATION_OF_RECOVERY_OF_BEARER (3)
                Specific-Action: INDICATION_OF_RELEASE_OF_BEARER (4)
                Specific-Action: IP_CAN_CHANGE (6)
                Framed-IPv6-Prefix: XXXX:XXXX:XXXX:XXXX (0xxxxxxxxxxxxxxxxxxxxx)
                Supported-Features:
                                Vendor-Id: 10415
                                Feature-List-ID: 1
                                Feature-List: 65587
                Service-Info-Status: FINAL SERVICE INFORMATION (0)
                Req-Received-Time: 1666143423673
                QPS-Internal-Route-Record-Host: x.x.x.x
                QPS-Internal-Route-Record-Realm: x.x.x.x
        DEBUG MSGS:
                INFO   : (core) Tagging message with ID: RX_TGPP
                INFO   : (core) Successful load by secondary key: FramedIpv6PrefixKey:framedIpv6Prefix:XXXX%XXXX%XXXX%XXXX
                INFO   : (core) Start session triggered
                INFO   : (core) Deletion started at Wed Oct 19 07:07:03 IST 2022
                WARN   : (core) Resending original message since the existing session is in deletion and this session triggered a start
                INFO   : (core) domain: IMS
                INFO   : (gx) Sending RAR Message on session 0006-diamproxy.lab.cisco.com;1200190897;28719897;634ebb76-11902
                INFO   : (core) Adding network-id keys for missing credentials
                INFO   : (custrefdata) QueryTable: TAI_BASED_POLICY Field: {ECGI=XXXXX, packname=-1, AN GW IPV4=*, RAT_TYPE=1004, IMSI_Prefix=XXXXX, TAI=4042052329, APN=XXX}
                INFO   : (custrefdata) QueryTable: LAC_BASED_POLICY Field: {MCC_MNC=XXXX, packname=-1, rat=1004, CGI=*, SGSN_IP=*, CI=*, IMSI_Prefix=XXXXXX, LAC=XXXX, APN=XX}
                INFO   : (core) domain: IMS
                INFO   : (core) Session removed
        SERVICE CALC MSGS:
        USE CASES:
                INFO   : (use-cases) Use case ‘Lab IMS Default', status: true, Condition: No Condition Set
        SENT MESSAGES (asynchronous):
        Message: com.broadhop.diameter2.messages.DiameterRequestMessage
                Timestamp: 2022-10-19 01:37:03,676
                Application Id: Gx (16777238)
                Command Code: Gx_RAR (258)
                Dest host: 0006-diamproxy.lab-spgw01.cisco.com
                Dest realm: vpcrf.cisco.com
                Device protocol: GX_TGPP
                End to end id: 0 (0x00000000)
                Hop by hop id: 0 (0x00000000)
                Origin state: 0
                Stack name: null
                Origin realm: x.x.x.x
                Session-Id: 0006-diamproxy.lab-spgw01.cisco.com;1200190897;28719897;634ebb76-11902
                Auth-Application-Id: 16777238
                Re-Auth-Request-Type: AUTHORIZE_ONLY (0)
                Session-Release-Cause: UNSPECIFIED_REASON (0)
=========================================================================

동시에 동일한 패킷에 대해 또 다른 session action: create 는 CPS에서 처리되지만 Gx 세션을 바인딩할 수 없으므로 5065 오류가 AF로 돌아갑니다.

LAB-VPCRF02-qns05  [2022-10-19 07:07:03,696] ===============================================
POLICY RESULT SUCCESS:
        session action = Create
        TRIGGER: Message: com.broadhop.diameter2.messages.DiameterRequestMessage
                Timestamp: 2022-10-19 01:37:03,673
                Application Id: Rx (16777236)
                Command Code: Rx_AAR (265)
                Dest realm: x.x.x.x
                Device protocol: RX_TGPP
                End to end id: 1274920388 (0x4bfdbdc4)
                Hop by hop id: 3440610237 (0xcd138bbd)
                Origin state: 0
                Stack name: null
                Origin host: x.x.x.x
                Origin realm: x.x.x.x
                Session-Id: x.x.x.x;168440;1;5.3576663599.2;pcsf.ims322-002
                Auth-Application-Id: 16777236
                Media-Component-Description:
                                Media-Component-Number: 1
                                Media-Sub-Component:
                                                Flow-Number: 1
                                                Flow-Description: permit in 17 from xxxxxx 8975:b101 41660 toxxxxxx::2 23096
                                                Flow-Description: permit out 17 fromxxxxxx::2 23096 toxxxxxx:b101 41660
                                Media-Sub-Component:
                                                Flow-Number: 2
                                                Flow-Description: permit in 17 from xxxxxx 8975:b101 41660 toxxxxxx::2 23096
                                                Flow-Description: permit out 17 fromxxxxxx::2 23096 toxxxxxx:b101 41660
                                                Flow-Usage: RTCP (1)
                                Codec-Data: downlink\r\noffer\r\nm=audio 23096 RTP/AVP 108 102 8 18 100 101 116\r\na=rtpmap:108 AMR/8000\r\na=fmtp:108 mode-set=0,2,4,7; mode-change-period=2;                                        Codec-Data: uplink\r\nanswer\r\nm=audio 41660 RTP/AVP 108 116\r\na=rtpmap:108 AMR/8000/1\r\na=ptime:20\r\na=maxptime:240\r\na=rtpmap:116 telephone-event/                                                 Media-Type: AUDIO (0)
                                Max-Requested-Bandwidth-UL: 37000
                                Max-Requested-Bandwidth-DL: 37000
                                Flow-Status: ENABLED (2)
                                RS-Bandwidth: 462
                                RR-Bandwidth: 1387
                Subscription-Id:
                                Subscription-Id-Type: END_USER_SIP_URI (2)
                                Subscription-Id-Data: sip:+xxxxxxxx
                AF-Charging-Identifier: ABCA4C23EA4C0320221019772
                Specific-Action: INDICATION_OF_LOSS_OF_BEARER (2)
                Specific-Action: INDICATION_OF_RECOVERY_OF_BEARER (3)
                Specific-Action: INDICATION_OF_RELEASE_OF_BEARER (4)
                Specific-Action: IP_CAN_CHANGE (6)
                Framed-IPv6-Prefix: xxxx:xxxx:xxxx:xxxx
                Supported-Features:
                                Vendor-Id: 10415
                                Feature-List-ID: 1
                                Feature-List: 65587
                Service-Info-Status: FINAL SERVICE INFORMATION (0)
                Req-Received-Time: 1666143423673
                QPS-Internal-Route-Record-Host: x.x.x.x
                QPS-Internal-Route-Record-Realm: x.x.x.x
        DEBUG MSGS:
                INFO   : (core) Tagging message with ID: RX_TGPP
                INFO   : (rx) Could not perform Gx session binding for Framed-IP-Address null, Framed-IPv6-Prefix xxxx:xxxx:xxxx:xxxx
                INFO   : (core) Start session triggered
                INFO   : (rx) Could not perform Gx session binding for Framed-IP-Address null, Framed-IPv6-Prefix xxxx:xxxx:xxxx:xxxx
                INFO   : (rx) Sending 265 Message on session x.x.x.x;168440;1;5.3576663599.2;pcsf.ims322-002
                ERROR  : (rules) Could not perform Gx session binding: Could not perform Gx session binding 5065
        SERVICE CALC MSGS:
        USE CASES:
        SENT MESSAGES (asynchronous):
        Message: com.broadhop.diameter2.messages.DiameterResponseMessage
                Timestamp: 2022-10-19 01:37:03,696
                Application Id: Rx (16777236)
                Command Code: Rx_AAA (265)
                Dest host: x.x.x.x
                Dest realm: x.x.x.x
                Device protocol: RX_TGPP
                End to end id: 1274920388 (0x4bfdbdc4)
                Hop by hop id: 3440610237 (0xcd138bbd)
                Origin state: 0
                Stack name: null
                Origin realm: x.x.x.x
                Session-Id: x.x.x.x;168440;1;5.3576663599.2;pcsf.ims322-002
                Auth-Application-Id: 16777236
                QPS-Internal-Route-Record-Host: x.x.x.x
                QPS-Internal-Route-Record-Realm: x.x.x.x
                Experimental-Result:
                        Vendor-Id: 10415
                        Experimental-Result-Code: IP-CAN_SESSION_NOT_AVAILABLE (5065)

=========================================================================

시나리오 3

가입자 세션은 PCRF에서 사용할 수 있지만 Gx 인터페이스 플랩으로 인해 발생한 PGW에서는 사용할 수 없음

PGW에서 가입자 세션이 제거되지만 PCRF에 존재하는 코너 사례 시나리오가 있다. 전송 레이어 중단으로 인해 Gx 링크 플랩이 발생하는 경우 이러한 현상이 발생합니다.

오류 통화 흐름 다이어그램:

Failure Scenario: IP_CAN_SESSION_NOT_AVAILABLE(5065) 실패 시나리오: IP_CAN_SESSION_NOT_AVAILABLE(5065)

엔진 로그에서 이 오류에 대한 샘플 통화 흐름:

lab-qns07  [2022-08-24 00:42:48,643] ===============================================
POLICY RESULT SUCCESS:
session action = None
domainId = IMS
locationId = ims
SERVICES: IMS_DEFAULT
TRIGGER: Message: com.broadhop.diameter2.messages.DiameterRequestMessage
Timestamp: 2022-08-23 19:12:48,638
Application Id: Rx (16777236)
Command Code: Rx_AAR (265)
Dest realm: x.x.x.x
Device protocol: RX_TGPP
End to end id: 1797266185 (0x6b201b09)
Hop by hop id: 1690686712 (0x64c5d4f8)
Origin state: 0
Stack name: null
Origin host: x.x.x.x
Origin realm: x.x.x.x
Session-Id: x.x.x.x;367169;1;5.1236049266.2;pcsf-stdn.ims332-012
Auth-Application-Id: 16777236
Media-Component-Description:
Media-Component-Number: 1
Media-Sub-Component:
Flow-Number: 1
Flow-Description: permit in 17 from xxxxxx 50060 to xxxxxx::4 28532
Flow-Description: permit out 17 from xxxxxx::4 28532 to xxxxxxx 50060
Media-Sub-Component:
Flow-Number: 2
Flow-Description: permit in 17 from xxxxxx 50060 to xxxxxx::4 28532
Flow-Description: permit out 17 from xxxxxx::4 28532 to xxxxxxx 50060
Flow-Usage: RTCP (1)
Codec-Data: uplink\r\noffer\r\nm=audio 50060 RTP/AVP 104 102 105 96\r\na=rtpmap:104 AMR-WB/16000/1\r\na=fmtp:104 mode-set=0,3;mode-change-capability=2;max-
Codec-Data: downlink\r\nanswer\r\nm=audio 28532 RTP/AVP 102 96\r\na=rtpmap:102 AMR/8000/1\r\na=fmtp:102 mode-set=0,2,4,7; mode-change-period=2; mode-change-capability=2;
Media-Type: AUDIO (0)
Max-Requested-Bandwidth-UL: 72000
Max-Requested-Bandwidth-DL: 72000
Flow-Status: ENABLED (2)
RS-Bandwidth: 362
RR-Bandwidth: 1087
Subscription-Id:
Subscription-Id-Type: END_USER_SIP_URI (2)
Subscription-Id-Data: sip:+919XXXXXX
AF-Charging-Identifier: "PCSF:1-MU1-cfed-12-00000000630526b2-0000000017442828"
Specific-Action: INDICATION_OF_LOSS_OF_BEARER (2)
Specific-Action: INDICATION_OF_RECOVERY_OF_BEARER (3)
Specific-Action: INDICATION_OF_RELEASE_OF_BEARER (4)
Specific-Action: IP_CAN_CHANGE (6)
Framed-IPv6-Prefix: xxxx:xxxx:xxxx:xxxx
Supported-Features:
Vendor-Id: 10415
Feature-List-ID: 1
Feature-List: 65587
Service-Info-Status: FINAL SERVICE INFORMATION (0)
Req-Received-Time: 1661281963763
QPS-Internal-Route-Record-Host: x.x.x.x
QPS-Internal-Route-Record-Realm: x.x.x.x
DEBUG MSGS:
INFO   : (core) Tagging message with ID: RX_TGPP
INFO   : (core) Successful load by secondary key: FramedIpv6PrefixKey:framedIpv6Prefix:xxxx%3Axxxx%3Axxxx%3Axxxx
INFO   : (core) Start session triggered
INFO   : (rx) Success binding to Gx session 0001-diamproxy.ndc3-ims-lab-sbc1;1106437295;560189406;63051856-de02 by IP Address
INFO   : (TGPP) [Rel8, Rel9, Rel10, NetLoc, NetLocUntrustedWLAN] features supported for Vendor-Id 10415, Feature-List-ID 1
INFO   : (rx) Creating new diameter session x.x.x.x;367169;1;5.1236049266.2;pcsf-stdn.ims332-012
INFO   : (policy) Load CRD for Unknown Subscriber
INFO   : (location) Location found for avp matching: logical_apn\ims
WARN   : (core) Session has switched from known to unknown as subscriber could not be found
INFO   : (core) Adding unknown service code: IMS_DEFAULT for session
INFO   : (core) domain: IMS
INFO   : (core) Adding network-id keys for missing credentials
INFO   : (core) domain: IMS
INFO   : (rx) Sending AAA Message on session x.x.x.x;367169;1;5.1236049266.2;pcsf-stdn.ims332-012
INFO   : (gx) Installing preconfigured rule: _6_1_2_AF_AUDIO
INFO   : (gx) Installing preconfigured rule: _6_1_1_AF_AUDIO
INFO   : (et) Event trigger 2 added
INFO   : (et) Event trigger 5 added
INFO   : (et) Event trigger 6 added
INFO   : (et) Event trigger 7 added
INFO   : (gx) Sending RAR Message on session 0001-diamproxy.ndc3-ims-lab-sbc1;1106437295;560189406;63051856-de02
SERVICE CALC MSGS:
USE CASES
INFO   : (use-cases) Use case 'WLAN', status: false, Condition: ("Rat-Type WLAN"=false)
INFO   : (use-cases) Use case 'IMS Default', status: true, Condition: No Condition Set
SENT MESSAGES (asynchronous):
Message: com.broadhop.diameter2.messages.DiameterResponseMessage
Timestamp: 2022-08-23 19:12:48,643
Application Id: Rx (16777236)
Command Code: Rx_AAA (265)
Dest host: x.x.x.x
Dest realm: x.x.x.x
Device protocol: RX_TGPP
End to end id: 1797266185 (0x6b201b09)
Hop by hop id: 1690686712 (0x64c5d4f8)
Origin state: 0
Stack name: null
Origin realm: x.x.x.x
Session-Id: x.x.x.x;367169;1;5.1236049266.2;pcsf-stdn.ims332-012
Auth-Application-Id: 16777236
IP-CAN-Type: 3GPP_EPS (5)
RAT-Type: EUTRAN (1004)
Supported-Features:
Vendor-Id: 10415
Feature-List-ID: 1
Feature-List: 65587QPS-Internal-Route-Record-Host: x.x.x.x
QPS-Internal-Route-Record-Realm: x.x.x.x
Result-Code: DIAMETER_SUCCESS (2001)
Message: com.broadhop.diameter2.messages.DiameterRequestMessage
Timestamp: 2022-08-23 19:12:48,643
Application Id: Gx (16777238)
Command Code: Gx_RAR (258)
Dest host: 0001-diamproxy.ndc3-ims-lab-sbc1
Dest realm: vpcrf.cisco.com
Device protocol: GX_TGPP
End to end id: 0 (0x00000000)
Hop by hop id: 0 (0x00000000)
Origin state: 0
Stack name: null
Origin realm: x.x.x.x
Session-Id: 0001-diamproxy.ndc3-ims-airpcrf02-sbc1;1106437295;560189406;63051856-de02
Auth-Application-Id: 16777238
Re-Auth-Request-Type: AUTHORIZE_ONLY (0)
Charging-Rule-Install:
Charging-Rule-Definition:
Charging-Rule-Name: _6_1_2_AF_AUDIO
Rating-Group: 2
Flow-Information:
Flow-Description: permit in 17 from xxxxxx 50061 to xxxxxxx28533
Flow-Direction: UPLINK (2)
Flow-Information:
Flow-Description: permit out 17 from xxxxx 28533 to xxxxxx 50061
Flow-Direction: DOWNLINK (1)
Flow-Status: ENABLED (2)
QoS-Information:
QoS-Class-Identifier: Conversational (1)
Max-Requested-Bandwidth-UL: 1449
Max-Requested-Bandwidth-DL: 1449
Guaranteed-Bitrate-UL: 1449
Guaranteed-Bitrate-DL: 1449
Reporting-Level: RATING_GROUP_LEVEL (1)
Precedence: 0
AF-Charging-Identifier: "PCSF:1-MU1-cfed-12-00000000630526b2-0000000017442828"
Flows:
Media-Component-Number: 1
Flow-Number: 2
Charging-Rule-Install:
Charging-Rule-Definition:
Charging-Rule-Name: _6_1_1_AF_AUDIO
Rating-Group: 2
Flow-Information:
Flow-Description: permit in 17 from xxxxxx 50060 to xxxxxx 28532
Flow-Direction: UPLINK (2)
Flow-Information:
Flow-Description: permit out 17 from xxxxxxx 28532 to 2xxxxx 50060
Flow-Direction: DOWNLINK (1)
Flow-Status: ENABLED (2)
QoS-Information:
QoS-Class-Identifier: Conversational (1)
Max-Requested-Bandwidth-UL: 72000
Max-Requested-Bandwidth-DL: 72000
Guaranteed-Bitrate-UL: 72000
Guaranteed-Bitrate-DL: 72000
Reporting-Level: RATING_GROUP_LEVEL (1)
Precedence: 0
AF-Charging-Identifier: "PCSF:1-MU1-cfed-12-00000000630526b2-0000000017442828"
Flows:
Media-Component-Number: 1
Flow-Number: 1
Event-Trigger: RAT_CHANGE (2)
Event-Trigger: LOSS_OF_BEARER (5)
Event-Trigger: RECOVERY_OF_BEARER (6)
Event-Trigger: IP-CAN_CHANGE (7)
=======================================================================


lab-qns04  [2022-08-24 00:42:49,849] ===============================================
POLICY RESULT SUCCESS:
session action = None
domainId = IMS
locationId = ims
SERVICES: IMS_DEFAULT
TRIGGER: Message: com.broadhop.diameter2.messages.DiameterResponseMessage
Timestamp: 2022-08-23 19:12:49,844
Application Id: Gx (16777238)
Command Code: Gx_RAA (258)
Device protocol: GX_TGPP
End to end id: 2244560894 (0x85c947fe)
Hop by hop id: 2040440255 (0x799ea5bf)
Origin state: 1657916833
Stack name: null
Origin host: 001-diamproxy.ndc3-ims-lab-sbc1
Origin realm: vpcrf.cisco.com
Session-Id: 0001-diamproxy.ndc3-ims-lab-sbc1;1106437295;560189406;63051856-de02
Origin-State-Id: 1657916833
Error-Message: Unknown Session ID
Req-Received-Time: 0
Result-Code: DIAMETER_UNKNOWN_SESSION_ID (5002)
DEBUG MSGS:
INFO   : (core) Tagging message with ID: GX_TGPP
INFO   : (core) Successful load by primary key: diameterSessionKey:0001-diamproxy.ndc3-ims-airpcrf02-sbc1%3B1106437295%3B560189406%3B63051856-de02
INFO   : (core) Stop session triggered
INFO   : (core) Deletion started at Wed Aug 24 00:42:49 IST 2022
INFO   : (core) Soft deletion triggered for session
INFO   : (policy) Load CRD for Unknown Subscriber
INFO   : (location) Location found for avp matching: logical_apn\ims
WARN   : (core) Session has switched from known to unknown as subscriber could not be found
INFO   : (core) Adding unknown service code: IMS_DEFAULT for session
INFO   : (core) domain: IMS
INFO   : (core) Adding network-id keys for missing credentials
INFO   : (core) domain: IMS
SERVICE CALC MSGS:
USE CASES:
INFO   : (use-cases) Use case 'WLAN', status: false, Condition: ("Rat-Type WLAN"=false)
INFO   : (use-cases) Use case 'Vodafone IMS Default', status: true, Condition: No Condition Set

=========================================================================

lab-qns04  [2022-08-24 00:43:02,349] ===============================================
POLICY RESULT SUCCESS:
session action = Create
TRIGGER: Message: com.broadhop.diameter2.messages.DiameterRequestMessage
Timestamp: 2022-08-23 19:13:02,330
Application Id: Rx (16777236)
Command Code: Rx_AAR (265)
Dest realm: x.x.x.x
Device protocol: RX_TGPP
End to end id: 1811425453 (0x6bf828ad)
Hop by hop id: 1690687469 (0x64c5d7ed)
Origin state: 0
Stack name: null
Origin host: x.x.x.x
Origin realm: x.x.x.x
Session-Id: x.x.x.x;367195;1;5.1236262316.2;pcsf-stdn.ims332-012
Auth-Application-Id: 16777236
Media-Component-Description:
Media-Component-Number: 1
Media-Sub-Component:
Flow-Number: 1
Flow-Description: permit in 17 from xxxx:xxxx:xxxx:xxxx: 50032 to xxxx:xxxx:xxxx:xxxx::6 5144
Flow-Description: permit out 17 from xxxx:xxxx:xxxx:xxxx::6 xxxx to xxxx:xxxx:xxxx:xxxx: 50032
Media-Sub-Component:
Flow-Number: 2
Flow-Description: permit in 17 from 2402:3a80:2027:2db8:ac0e:ff4:dc53:af02 50033 to 2402:3a80:2000:606::6 5145
Flow-Description: permit out 17 from 2402:3a80:2000:606::6 5145 to 2402:3a80:2027:2db8:ac0e:ff4:dc53:af02 50033
Flow-Usage: RTCP (1)
Codec-Data: downlink\r\noffer\r\nm=audio 5144 RTP/AVP 96 8 18 100 101 97\r\na=rtpmap:96 AMR/8000\r\na=fmtp:96 mode-set=0,2,4,7; mode-change-period=2; mode-change-Codec-Data: uplink\r\nanswer\r\nm=audio 50032 RTP/AVP 96 97\r\na=rtpmap:96 AMR/8000/1\r\na=fmtp:96 mode-set=0,2,4,7;mode-change-capability=2;max-red=0\r\na=rtpmap:97 Media-Type: AUDIO (0)
Max-Requested-Bandwidth-UL: 37000
Max-Requested-Bandwidth-DL: 37000
Flow-Status: ENABLED (2)
RS-Bandwidth: 0
RR-Bandwidth: 0
Subscription-Id:
Subscription-Id-Type: END_USER_SIP_URI (2)
Subscription-Id-Data: sip:+xxxxxxx
AF-Charging-Identifier: GYlkAABklmEFGKS7UELMBecR
Specific-Action: INDICATION_OF_LOSS_OF_BEARER (2)
Specific-Action: INDICATION_OF_RECOVERY_OF_BEARER (3)
Specific-Action: INDICATION_OF_RELEASE_OF_BEARER (4)
Specific-Action: IP_CAN_CHANGE (6)
Framed-IPv6-Prefix: xxxxxxxxx
Supported-Features:
Vendor-Id: 10415
Feature-List-ID: 1
Feature-List: 65587
Service-Info-Status: FINAL SERVICE INFORMATION (0)
Req-Received-Time: 1661281976257
QPS-Internal-Route-Record-Host: x.x.x.x
QPS-Internal-Route-Record-Realm: x.x.x.x
DEBUG MSGS:
INFO   : (core) Tagging message with ID: RX_TGPP
INFO   : (rx) Could not perform Gx session binding for Framed-IP-Address null, Framed-IPv6-Prefix xxxxxx
INFO   : (core) Start session triggered
INFO   : (rx) Could not perform Gx session binding for Framed-IP-Address null, Framed-IPv6-Prefix xxxxxx
INFO   : (rx) Sending 265 Message on session x.x.x.x;367195;1;5.1236262316.2;pcsf-stdn.ims332-012
ERROR  : (rules) Could not perform Gx session binding: Could not perform Gx session binding 5065
SERVICE CALC MSGS:
USE CASES:
SENT MESSAGES (asynchronous):
Message: com.broadhop.diameter2.messages.DiameterResponseMessage
Timestamp: 2022-08-23 19:13:02,349
Application Id: Rx (16777236)
Command Code: Rx_AAA (265)
Dest host: x.x.x.x
Dest realm: x.x.x.x
Device protocol: RX_TGPP
End to end id: 1811425453 (0x6bf828ad)
Hop by hop id: 1690687469 (0x64c5d7ed)
Origin state: 0
Stack name: null
Origin realm: x.x.x.x
Session-Id: x.x.x.x;367195;1;5.1236262316.2;pcsf-stdn.ims332-012
Auth-Application-Id: 16777236
QPS-Internal-Route-Record-Host: x.x.x.x
QPS-Internal-Route-Record-Realm: x.x.x.x
Experimental-Result:
Vendor-Id: 10415
Experimental-Result-Code: IP-CAN_SESSION_NOT_AVAILABLE (5065)


===============================================

다음에 대한 오류 KPI 추세를 면밀히 확인할 때 RX_AAR [IP-CAN_SESSION_NOT_AVAILABLE (5065)] 및 Gx_RAR [DIAMETER_UNKNOWN_SESSION_ID (5002)], Gx 인터페이스 플랩 후 이러한 오류의 선형 증가를 확인할 수 있습니다.

Gx_RAR & Rx_AAR Failure Trend Gx_RAR 및 Rx_AAR 실패 추세

솔루션

시나리오 1에 대한 접근 방식

이 문제에 대한 해결책은 CPS 외부에서 실행해야 합니다. Gm 인터페이스(SPGW에서 AF로의 인터페이스)에서 사용되는 IP 풀의 조정을 수행하고 이를 확인해야 합니다 Framed-IP-Prefixes PGW와 AF에서 User Equipment (UE).

시나리오 2에 대한 접근 방식

세션 만료 타이머를 >(3 * Gx stale-session timer).

타이머 설정 절차

1단계. Read/Write 사용자로 Policy Builder에 로그인합니다.

2단계. 설정 Default Gx Stale Session Timer Minutes 을(를) 권장 값으로 사용합니다.

Gx Stale Session Timer Configuration Gx 부실 세션 타이머 컨피그레이션

3단계. 설정 Session Expiration Hours and Session Expiration Minutes 권장한대로 3 * of Gx Stale session timer.

Session Expiration Timer Configuration 세션 만료 타이머 구성

4단계. 저장소를 저장하고 최신 버전으로 게시합니다.

시나리오 3에 대한 접근 방식

Cisco의 Rx_ASR CPS에서 이미 생성된 Rx 세션을 지울 경우 Diameter Error Code=5002 PGW의 Gx_RAR의 응답으로. 이와 같이, 세션이 PGW에 존재하지 않고 CPS가 수신하는 경우 Diameter Error 5002 CPS는 Gx 세션의 소프트 삭제와 함께 AF 노드를 향해 Rx_ASR 메시지를 전송합니다. Abort-Cause: 0.

Rx_ASR 매개변수 설정 절차

1단계. 클러스터 관리자에 루트 사용자로 로그인합니다.

2단계. 백업qns.conf 파일을 클릭합니다.

cp /etc/broadhop/qns.conf /etc/broadhop/qns.conf.$(date +%m%d%Y).bkp

3단계. 파일 편집 /etc/broadhop/qns.conf vi 편집기를 사용하여 "-Dsend.Rx.ASR.For.AdditionalErrorCodes=5002"

4단계. 퍼핏 스크립트를 빌드합니다.

/var/qps/install/current/puppet/modules/qps/templates/var/broadhop/build_etc.sh

5단계. 모든 VM의 변경 사항을 채웁니다.

/var/qps/install/current/scripts/upgrade/reinit.sh

6단계. 변경 사항을 적용하려면 모두를 다시 시작하십시오.

restartall.sh

필수 매개변수를 변경한 후 예상되는 통화 흐름입니다.

Success Scenario after the Change 변경 후 성공 시나리오

이는 필수 매개변수 변경 후 CPS 엔진 로그의 예상 통화 흐름입니다.

=========================================================================
[2022-10-10 09:46:28,899] ===============================================
POLICY RESULT SUCCESS:
session action = None
domainId = F1660RxPriorityLevel
locationId = F1660IMS
SERVICES: RxPriorityLevel
TRIGGER: Message: com.broadhop.diameter2.messages.DiameterRequestMessage
Timestamp: 2022-10-10 09:46:28,332
Application Id: Rx (16777236)
Command Code: Rx_AAR (265)
Dest host: qns-site-server-1
Dest realm: cisco.com
Device protocol: RX_TGPP
End to end id: 535285358 (0x1fe7ce6e)
Hop by hop id: 655749306 (0x2715f0ba)
Origin state: 0
Stack name: null
Origin host: site-host-rx
Origin realm: site-rx-client
Session-Id: site-host-rx;132419;581;311482316600001IMSSession
Auth-Application-Id: 16777236
Media-Component-Description:
Media-Component-Number: 1
Media-Sub-Component:
Flow-Number: 1
Flow-Description: permit in ip from xxxxxxx 10000 to xxxxxxx:1 20000
Flow-Description: permit out ip from xxxxxxxxx1 20000 to xxxxxxx 10000
Flow-Usage: AF_SIGNALLING (2)
AF-Application-Identifier: lab.test.f1660.afapid01
Media-Type: VIDEO (1)
Max-Requested-Bandwidth-UL: 50000
Max-Requested-Bandwidth-DL: 50000
RS-Bandwidth: 800
RR-Bandwidth: 800
Specific-Action: INDICATION_OF_FAILED_RESOURCES_ALLOCATION (9)
Specific-Action: CHARGING_CORRELATION_EXCHANGE (1)
Specific-Action: INDICATION_OF_LOSS_OF_BEARER (2)
Specific-Action: INDICATION_OF_RECOVERY_OF_BEARER (3)
Specific-Action: INDICATION_OF_RELEASE_OF_BEARER (4)
Specific-Action: IP_CAN_CHANGE (6)
Specific-Action: ACCESS_NETWORK_INFO_REPORT (12)
Subscription-Id:
Subscription-Id-Type: END_USER_SIP_URI (2)
Subscription-Id-Data: sip:xxxxxxx
Framed-IP-Address: x.x.x.x (0x01020304)
Supported-Features:
Vendor-Id: 10415
Feature-List-ID: 1
Feature-List: 32
MIP6-Agent-Info:
MIP-Home-Agent-Host:
Destination-Realm: pcef
Destination-Host: vzr
Req-Received-Time: 1665395188271
QPS-Internal-Route-Record-Host: site-host-rx
QPS-Internal-Route-Record-Realm: site-rx-client
DEBUG MSGS:
INFO   : (core) Tagging message with ID: RX_TGPP
INFO   : (diameter)  Adding extracted AVP to policy: DiameterMessageAvp [code=Media-Type, value=1]
INFO   : (core) Successful load by secondary key: FramedIpKey:framedIp:x.x.x.x
INFO   : (core) Start session triggered
INFO   : (rx) Success binding to Gx session site-host-gx;132419;575;9001660001 by IP Address
INFO   : (TGPP) [NetLoc] features supported for Vendor-Id 10415, Feature-List-ID 1
INFO   : (rx) Creating new diameter session site-host-rx;132419;581;311482316600001IMSSession
INFO   : (gx) Installing preconfigured rule: _1_1_1_AF_VIDEO
INFO   : (et) Event trigger 2 added
INFO   : (et) Event trigger 5 added
INFO   : (et) Event trigger 6 added
INFO   : (et) Event trigger 7 added
INFO   : (et) Event trigger 28 added
INFO   : (gx) Sending RAR Message on session site-host-gx;132419;575;9001660001
SERVICE CALC MSGS:
USE CASES:
INFO   : (use-cases) Use case 'F1660_Rx_priorityLevel', status: true, Condition: No Condition Set
SENT MESSAGES (asynchronous):
com.broadhop.diameter2.actions.ISendDiameterResponse
DestinationName:
ResponseMessage: Message: com.broadhop.diameter2.messages.DiameterResponseMessage
Timestamp: 2022-10-10 09:46:28,893
Application Id: Rx (16777236)
Command Code: Rx_AAA (265)
Dest host: site-host-rx
Dest realm: site-rx-client
Device protocol: RX_TGPP
End to end id: 535285358 (0x1fe7ce6e)
Hop by hop id: 655749306 (0x2715f0ba)
Origin state: 0
Stack name: null
Origin realm: cisco
Session-Id: site-host-rx;132419;581;311482316600001IMSSession
Auth-Application-Id: 16777236
IP-CAN-Type: 3GPP_EPS (5)
RAT-Type: EUTRAN (1004)
Supported-Features:
Vendor-Id: 10415
Feature-List-ID: 1
Feature-List: 32
QPS-Internal-Route-Record-Host: site-host-rx
QPS-Internal-Route-Record-Realm: site-rx-client
Result-Code: DIAMETER_SUCCESS (2001)


com.broadhop.diameter2.actions.ISendDiameterRequest
RequestMessage: Message: com.broadhop.diameter2.messages.DiameterRequestMessage
Timestamp: 2022-10-10 09:46:28,899
Application Id: Gx (16777238)
Command Code: Gx_RAR (258)
Dest host: site-host-gx
Dest realm: site-gx-client
Device protocol: GX_TGPP
End to end id: 0 (0x00000000)
Hop by hop id: 0 (0x00000000)
Origin state: 0
Stack name: null
Session-Id: site-host-gx;132419;575;9001660001
Auth-Application-Id: 16777238
Re-Auth-Request-Type: 0
Charging-Rule-Install:
Charging-Correlation-Indicator: 0
Charging-Rule-Definition:
Charging-Rule-Name: _1_1_1_AF_VIDEO
Flow-Information:
Flow-Description: permit in ip from xxxx:xxxx:xxxx:xxxx: 10000 toxxxx:xxxx:xxxx:xxxx 20000
Flow-Information:
Flow-Description:permit in ip from xxxx:xxxx:xxxx:xxxx: 10000 toxxxx:xxxx:xxxx:xxxx 20000
QoS-Information:
QoS-Class-Identifier: 3
Max-Requested-Bandwidth-UL: 204800
Max-Requested-Bandwidth-DL: 204800
Allocation-Retention-Priority:
Priority-Level: 1
Pre-emption-Capability: 0
Pre-emption-Vulnerability: 1
Event-Trigger: 2
Event-Trigger: 5
Event-Trigger: 6
Event-Trigger: 7
Event-Trigger: 28
DestinationName: lab-1:diameter-lb
=========================================================================

[2022-10-10 09:46:29,323] ===============================================
POLICY RESULT SUCCESS:
session action = None
domainId = F1660RxPriorityLevel
locationId = F1660IMS
SERVICES: RxPriorityLevel
TRIGGER: Message: com.broadhop.diameter2.messages.DiameterResponseMessage
Timestamp: 2022-10-10 09:46:29,148
Application Id: Gx (16777238)
Command Code: Gx_RAA (258)
Device protocol: GX_TGPP
End to end id: 2577399809 (0x99a00001)
Hop by hop id: 1095304429 (0x414904ed)
Origin state: 0
Stack name: null
Origin host: site-host-gx
Origin realm: site-gx-client
Session-Id: site-host-gx;132419;575;9001660001
Auth-Application-Id: 16777238
Req-Received-Time: 0
 Result-Code: DIAMETER_UNKNOWN_SESSION_ID (5002)
DEBUG MSGS:
INFO   : (core) Tagging message with ID: GX_TGPP
INFO   : (core) Lock obtained on key: diameterSessionKey:site-host-gx%3B132419%3B575%3B9001660001
INFO   : (core) Successful load by primary key: diameterSessionKey:site-host-gx%3B132419%3B575%3B9001660001
INFO   : (core) Stop session triggered
INFO   : (core) Deletion started at Mon Oct 10 09:46:29 UTC 2022
INFO   : (core) Soft deletion triggered for session
INFO   : (rx) Trigger Rx-ASR for error code 5002
INFO   : (rx) Sending ASR Message on session site-host-rx;132419;581;311482316600001IMSSession
SERVICE CALC MSGS:
USE CASES:
INFO   : (use-cases) Use case 'F1660_Rx_priorityLevel', status: true, Condition: No Condition Set
SENT MESSAGES (asynchronous):
com.broadhop.diameter2.actions.ISendDiameterRequest
RequestMessage: Message: com.broadhop.diameter2.messages.DiameterRequestMessage
Timestamp: 2022-10-10 09:46:29,323
Application Id: Rx (16777236)
Command Code: Rx_ASR (274)
Dest host: site-host-rx
Dest realm: site-rx-client
Device protocol: RX_TGPP
End to end id: 0 (0x00000000)
Hop by hop id: 0 (0x00000000)
Origin state: 0
Stack name: null
Session-Id: site-host-rx;132419;581;311482316600001IMSSession
Auth-Application-Id: 16777236
Abort-Cause: 0
DestinationName: lab-1:diameter-lb

=========================================================================

개정 이력

개정	게시 날짜	의견
2.0	24-Aug-2023	최초 릴리스
1.0	24-Nov-2022	최초 릴리스

Cisco 엔지니어가 작성

울라스 쿠마르 E
Cisco TAC 엔지니어
크리슈나 키쇼어 D V
Cisco 기술 리더