5.11 Performance measurements for NSSF

28.5523GPP5G performance measurementsManagement and orchestrationRelease 18TS

5.11.1 Network slice selection related measurements

5.11.1.1 Number of network slice selection requests

a) This measurement provides the number of network slice selection requests received by the NSSF.

b) CC.

c) Receipt by the NSSF of an Nnssf_NSSelection_Get request message from AMF (see TS 23.502 [7]).

d) A single integer value.

e) NSS.NbrGetReq

f) NSSFFunction.

g) Valid for packet switched traffic.

h) 5GS.

5.11.1.2 Number of successful network slice selections

a) This measurement provides the number of successful network slice selections made by the NSSF.

b) CC.

c) Transmission by the NSSF of an Nnssf_NSSelection_Get response message indicating a successful network slice selection to AMF (see TS 29.531 [41]).

d) A single integer value.

e) NSS.NbrGetSucc

f) NSSFFunction.

g) Valid for packet switched traffic.

h) 5GS.

5.11.1.3 Number of failed network slice selections

a) This measurement provides the number of failed network slice selections made by the NSSF. This measurement is split into subcounter per failure cause.

b) CC.

c) Transmission by the NSSF of an Nnssf_NSSelection_Get response message indicating a failed network slice selection to AMF (see TS 29.531 [41]), each message increments the relevant subcounter per failure cause by 1.

d) Each measurement is an integer value.

e) NSS.NbrGetFail.cause
Where cause indicates the failure cause of the network slice selection.

f) NSSFFunction.

g) Valid for packet switched traffic.

h) 5GS.

5.11.2 S-NSSAI availability related measurements

5.11.2.1 S-NSSAI availability update

5.11.2.1.1 Number of S-NSSAI availability update requests

a) This measurement provides the number of S-NSSAI availability update requests received by the NSSF.

b) CC.

c) Receipt by the NSSF of an Nnssf_NSSAIAvailability_Update request message from AMF (see TS 23.502 [7]).

d) A single integer value.

e) NSS.NbrNSSAIAvailUpdateReq

f) NSSFFunction.

g) Valid for packet switched traffic.

h) 5GS.

5.11.2.1.2 Number of successful S-NSSAI availability updates

a) This measurement provides the number of successful S-NSSAI availability updates made by the NSSF.

b) CC.

c) Transmission by the NSSF of an Nnssf_NSSAIAvailability_Update response message indicating a successful S-NSSAI availability update to AMF (see TS 29.531 [41]).

d) A single integer value.

e) NSS.NbrNSSAIAvailUpdateSucc

f) NSSFFunction.

g) Valid for packet switched traffic.

h) 5GS.

5.11.2.1.3 Number of failed S-NSSAI availability updates

a) This measurement provides the number of failed S-NSSAI availability updates made by the NSSF.

b) CC.

c) Transmission by the NSSF of an Nnssf_NSSAIAvailability_Update response message indicating a failed S-NSSAI availability update to AMF (see TS 29.531 [41]), each message increments the relevant subcounter per failure cause by 1.

d) A single integer value.

e) NSS.NbrNSSAIAvailUpdateFail.cause
Where cause indicates the failure cause of S-NSSAI availability update.

f) NSSFFunction.

g) Valid for packet switched traffic.

h) 5GS.

5.11.2.2 S-NSSAI availability notification

5.11.2.2.1 Number of S-NSSAI availability notification subscription requests

a) This measurement provides the number of S-NSSAI availability notification subscription requests received by the NSSF.

b) CC.

c) Receipt by the NSSF of an Nnssf_NSSAIAvailability_Subscribe request message from AMF (see TS 23.502 [7]).

d) A single integer value.

e) NSS.NbrNSSAIAvailSubscribeReq

f) NSSFFunction.

g) Valid for packet switched traffic.

h) 5GS.

5.11.2.2.2 Number of successful S-NSSAI availability notification subscriptions

a) This measurement provides the number of successful S-NSSAI availability notification subscriptions made by the NSSF.

b) CC.

c) Transmission by the NSSF of an Nnssf_NSSAIAvailability_Subscribe response message indicating a successful S-NSSAI availability notification subscription to AMF (see TS 29.531 [41]).

d) A single integer value.

e) NSS.NbrNSSAIAvailSubscribeSucc

f) NSSFFunction.

g) Valid for packet switched traffic.

h) 5GS.

5.11.2.2.3 Number of failed S-NSSAI availability notification subscriptions

a) This measurement provides the number of failed S-NSSAI availability notification subscriptions made by the NSSF.

b) CC.

c) Transmission by the NSSF of an Nnssf_NSSAIAvailability_Subscribe response message indicating a S-NSSAI availability notification subscription to AMF (see TS 29.531 [41]), each message increments the relevant subcounter per failure cause by 1.

d) A single integer value.

e) NSS.NbrNSSAIAvailSubscribeFail.cause
Where cause indicates the failure cause of S-NSSAI availability notification subscription.

f) NSSFFunction.

g) Valid for packet switched traffic.

h) 5GS.

5.11.2.2.4 Number of S-NSSAI availability notifications

a) This measurement provides the number of S-NSSAI availability notifications sent by the NSSF.

b) CC.

c) Transmission by the NSSF of an Nnssf_NSSAIAvailability_Notify message to AMF (see TS 23.502 [7]).

d) A single integer value.

e) NSS.NbrNSSAIAvailNotify

f) NSSFFunction.

g) Valid for packet switched traffic.

h) 5GS.