Diameter错误代码故障排除：CPS中的"IP-CAN_SESSION_NOT_AVAILABLE(5065)"
简介
本文档介绍处理Diameter错误代码的各种调查方法： "IP-CAN_SESSION_NOT_AVAILABLE (5065)“”(在思科策略套件(CPS)中)。
先决条件
要求
Cisco 建议您了解以下主题：
- Linux
- CPS
- 策略控制计费规则功能(PCRF)
- 直径
注意:Cisco建议您必须具有对CPS CLI的超级用户访问权限。
使用的组件
本文档中的信息基于CPS 21.1。
本文档中的信息都是基于特定实验室环境中的设备编写的。本文档中使用的所有设备最初均采用原始（默认）配置。如果您的网络处于活动状态，请确保您了解所有命令的潜在影响。
背景信息
Diameter错误代码： "IP-CAN_SESSION_NOT_AVAILABLE (5065)“”是PCRF中常见的Diameter实验结果代码，它处理 Voice over Long-Term Evolution (VoLTE) 服务。
正常的VoLTE系统不会生成此错误。本文档将讨论几种报告此错误的场景，以及排除这些错误的各种方法。
通常，如果PCRF未能在Rx和Gx会话之间执行会话绑定，则会对 Application Function (AF) 使用AA-Answer，其中包括设置为值''的实验结果代码属性值对(AVP) IP-CAN_SESSION_NOT_AVAILABLE (5065) ".
问题
场景 1
GX_(CCR-I)和Rx_AAR中Framed-IP-Prefix AVP值的差异
Rx到Gx会话绑定的基本规则基于相同 Framed-IPv6-Prefix 接收自 Gx_Credit Control Request Initial (CCR-I) 543 创建Gx会话和从 Rx_Authorization Authentication Request (AAR) 创建接收会话。
在此场景中，观察到所有错误示例 IP-CAN_SESSION_NOT_AVAILABLE (5065) 从特定的 Framed-IPv6-Prefix.这些 Framed-IPv6-Prefixes 未在中报告 Gx_CCR-I .
此CLI提供唯一列表和总数 Framed-IPv6-Prefix对于 IP-CAN_SESSION_NOT_AVAILABLE (5065) 由CPS恢复为 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
此CLI提供 Framed-IPv6-Prefix 报告位置 Gx_CCR-I 从 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
注：对于CLI执行，您必须登录到CPS的pcrfclient01并导航至 /var/log/broadhop/ 目录。
对健康体系的期望是， Framed-IPv6-Prefix接收自 Gx_CCR-I 和 Rx_AAR 来自为Gm IP分配的相同IP前缀池（PGW到AF）。
在此场景中，很明显，对于收集的所有故障样本， Framed-IP-Prefix 报告位置 Rx_AAR 完全不同于 Framed-IP-Prefix 接收于 Gx_CCR-I.
场景 2
CPS中Gx过时会话计时器和会话过期计时器设置的矛盾
1. Gx陈旧会话计时器是什么？
每次收到或发送任何给定Gx会话的消息时，都会启用此计时器。当计时器到期时， Gx_Re-Auth-Request (RAR) 发送方式 Re-Auth-Request-Type AVP 设置为 AUTHORIZE_ONLY (0) 用于PGW的Gx会话。如果收到Gx_Re-Auth-Answer(RAA)，结果代码AVP值设置为 DIAMETER_UNKNOWN_SESSION_ID (5002) 或 DIAMETER_UNABLE_TO_COMPLY (5012) gx会话被视为过时，并从PCRF内部数据库中删除。通过Gx接口执行任何活动 (Gx_RAR/Gx_CCR) ，计时器已重置。
2.什么是会话过期计时器？
如果在计时器设置内未收到消息，则会从PCRF中删除会话。
在有问题的场景中，计时器设置如下。
Gx过时会话计时器：180分钟
会话过期时间：240分钟
根据计时器配置，180分钟后，将生成一个保活RAR并将其发送到PGW，如果会话处于非活动状态240分钟，则会从PCRF数据库删除会话。
如果由于多种原因[Gx接口抖动、PGW停止服务或任何拐角情况]而错过了保活RAR，则会话到达其到期时间，同时如果从AF收到任何Rx_AAR，您会看到此错误，并且Gx_RAR会发送到PGW，并带有 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)
此外，Gx会话在PCRF上标记为软删除。由于PCRF无法绑定Gx会话，因此Rx_AAA将以Experimental-Result-Code AVP设置为值进行响应 IP-CAN_SESSION_NOT_AVAILABLE (5065).
这是完整的呼叫流程，用于解释场景：
=========================================================================
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)
=========================================================================
同时，对于同一数据包，另一个数据包 session action: create 由CPS处理，但无法绑定Gx会话，因此将5065错误恢复为AF。
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)
=========================================================================
场景 3
用户会话在PCRF中可用，但在PGW中不可用，这是由Gx接口抖动引起的
在转角情况下，用户会话在PGW中被删除，但在PCRF中存在。当传输层中断导致Gx链路抖动时，会发生这种情况。
故障呼叫流程图：
故障场景：IP_CAN_SESSION_NOT_AVAILABLE(5065)
引擎日志中此错误的呼叫流程示例：
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)
===============================================
当您仔细检查错误KPI趋势时， RX_AAR [IP-CAN_SESSION_NOT_AVAILABLE (5065)] 和 Gx_RAR [DIAMETER_UNKNOWN_SESSION_ID (5002)]在Gx接口抖动后，您可以看到这些错误的线性增量。
Gx_RAR和Rx_AAR故障趋势
解决方案
方案1的方法
此问题的解决方案必须在CPS之外执行。您必须对Gm接口（SPGW到AF之间的接口）中使用的IP池执行协调，并确保相同 Framed-IP-Prefixes 在PGW和AF中用于 User Equipment (UE).
方案2的方法
将会话过期计时器设置为>(3 * Gx stale-session timer影响。
设置计时器的步骤
步骤1:使用读/写用户登录策略生成器。
第二步：设置 Default Gx Stale Session Timer Minutes 作为推荐值。
Gx过时的会话计时器配置
第三步：设置 Session Expiration Hours and Session Expiration Minutes 按照建议 3 * of Gx Stale session timer.
会话过期计时器配置
第四步：保存存储库并发布到最新版本。
方案3的方法
引入 Rx_ASR 到AF以清除已创建的Rx会话(如果CPS收到 Diameter Error Code=5002 来自PGW的Gx_RAR的响应。这样，如果会话不存在于PGW中，并且CPS接收 Diameter Error 5002 ，随着软删除Gx会话，CPS向AF节点发送Rx_ASR消息， Abort-Cause: 0.
设置Rx_ASR参数的过程
步骤1:以根用户身份登录群集管理器。
第二步：备份qns.conf 文件.
cp /etc/broadhop/qns.conf /etc/broadhop/qns.conf.$(date +%m%d%Y).bkp
第三步：编辑文件 /etc/broadhop/qns.conf 使用vi编辑器并插入行"-Dsend.Rx.ASR.For.AdditionalErrorCodes=5002"
第四步：生成木偶脚本。
/var/qps/install/current/puppet/modules/qps/templates/var/broadhop/build_etc.sh
第五步：填充所有VM中的更改。
/var/qps/install/current/scripts/upgrade/reinit.sh
第六步：全部重新启动，以使更改生效。
restartall.sh
这是所需参数更改后的预期呼叫流。
更改后的成功场景
这是所需参数更改后来自CPS引擎日志的预期呼叫流。
=========================================================================
[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
=========================================================================
修订历史记录
| 版本 | 发布日期 | 备注 |
|---|---|---|
2.0 |
24-Aug-2023 |
首次公开发布 |
1.0 |
24-Nov-2022 |
初始版本 |
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