Bulk Statistics and Key Performance Indicators

Feature Summary and Revision History

Summary Data

Table 1. Summary Data

Applicable Product(s) or Functional Area

SMF

Applicable Platform(s)

SMI

Feature Default Setting

Enabled – Always-on

Related Changes in this Release

Not Applicable

Related Documentation

Not Applicable

Revision History

Table 2. Revision History

Revision Details

Release

First introduced.

Pre-2020.02.0

Feature Description

This chapter provides details of bulk statistics, and Key Performance Indicators (KPIs) used for performance analysis on SMF.

There are two types of bulk statistics:

  • Gauge - A snapshot value that shows the statistic at that reporting moment (for example, the number of current PDP contexts, simultaneous Active EPS Bearers). Gauge statistics can increment or decrement continuously.

  • Counter - A historic value that shows the statistic that accumulated over time (for example, the total number of CSR requests received). Counter values can only increment except in two cases: rollover, where a counter exceeds its maximum value and rolls over to zero, and reset, where a counter is manually reset to zero.

How it Works

The following bulk statistics are supported in SMF for Attempted, Success, and Failures:

  • 4G and WiFi message-level statistics (CREATE, DELETE, UPDATE)

  • PCF and CHF message-level statistics

  • Handover:

    • 4G to 5G

    • 5G to 4G

    • Voice over New Radio (VoNR)

    • WiFi to NR

    • NR to WiFi

    • WiFi to eNB

    • eNB to WiFi

Supported KPIs

Common Statistics

The following table provides details of KPIs related to common statistics.

KPI Name Type Description/Formula Label
Total PCF Policy Create Attempted Counter

Total number of PCF Create attempted

(%smPolicyCreate%)

 status="attempted",dnn,rat_type
Total PCF Policy Create Success Counter

(%smPolicyCreate%)

Total PCF Policy Create Attempted - Total PCF Policy Create Failure

dnn,rat_type
Total PCF Policy Create Failure Counter (%smPolicyCreate%) status="failed",dnn,rat_type
Total PCF Policy Update Attempted Counter (%smPolicyUpdate%) status="attempted", dnn, rat_type
Total PCF Policy Update Success Counter

(%smPolicyUpdate%)

Total PCF Policy Update Attempted - Total PCF Policy Update Failure

dnn,rat_type
Total PCF Policy Update Failure Counter (%smPolicyUpdate%) status="failed", dnn, rat_type
Total PCF Update Notify Received Counter (%smPolicyUpdateNotify%) status="accepted",dnn, rat_type
Total PCF Update Notify success Counter Total PCF Update Notify Received - Total PCF Update Notify failure dnn, rat_type
Total PCF Update Notify Failure Counter (%smPolicyUpdateNotify%) status="rejected"/status="failed",dnn, rat_type
Total PCF Terminate Attempted Counter

(%smPolicyTerminate%)

 status="attempted", dnn, rat_type
Total PCF Terminate Success Counter (%smPolicyTerminate %) status="success",dnn, rat_type
Total PCF Terminate Failures Counter (%smPolicyTerminate%) status="failure", dnn, rat_type
Total CHF Update Attempted Counter (%charging_update%) status="attempted", dnn, rat_type
Total CHF Update Success Counter (%charging_update%) status="success", dnn, rat_type
Total CHF Update Failure/Timeout Counter (%charging_update%) status="failure", dnn, rat_typpe
Total CHF terminate Attempted Counter (%charging_terminate%) status="attempted", dnn, rat_type
Total CHF terminate Success Counter (%charging_terminate%) status="success", dnn, rat_type
Total CHF terminate Failure Counter (%charging_terminate%) status="failure", dnn, rat_type
Total 5gto4g Handover Attempted Counter

pdn_5g_4g_handover

pdn_5g_4g_handover_dft

pdn_5g_4g_handover_idft

status="attempted"

Total 5gto4g Handover

Success

 Counter

pdn_5g_4g_handover

pdn_5g_4g_handover_dft

pdn_5g_4g_handover_idft

status="success"

Total 5gto4g Handover

Failure

 Counter

pdn_5g_4g_handover

pdn_5g_4g_handover_dft

pdn_5g_4g_handover_idft

status="failure",

reason="idft_setup_failure"

reason="mbr_setup_failure"

reason="upf_failure"
Total 4gto5g Handover Attempted Counter

n26_4g_to_5g_handover

n26ho_4g_5g_dft

n26ho_4g_5g_idft

n26_4g_to_5g_im_mobility

status="attempted"

Total 4gto5g Handover Success

 Counter

n26_4g_to_5g_handover

n26ho_4g_5g_dft

n26ho_4g_5g_idft

n26_4g_to_5g_im_mobility

status="success"
Total 4gto5g Handover Failure Counter

n26_4g_to_5g_handover

n26ho_4g_5g_dft

n26ho_4g_5g_idft

n26_4g_to_5g_im_mobility

status="failure"

reason="n26ho_4g_5g_n1n2_transfer_failure"

reason="disc_n26_4g_5g_ho_udm_reg_failed"

reason="disc_n26_4g_5g_ho_n4_modify_failed"
Total EPSFB Attempted Counter

eps_fb_5g_4g_handover_dft

eps_fb_5g_4g_handover_idft

eps_fb_ded_brr

status="attempted",

Total EPSFB

Success

 Counter

eps_fb_5g_4g_handover_dft

eps_fb_5g_4g_handover_idft

eps_fb_ded_brr

status="success",
Total EPSFB Failure Counter

eps_fb_5g_4g_handover_dft

eps_fb_5g_4g_handover_idft

eps_fb_ded_brr

status="failure",

reason="idft_setup_failure"

reason="mbr_setup_failure"

reason="upf_failure"

reason="sgw_failure"
Total NRtoWifi Attempted Counter

nr_to_untrusted_wifi_handover

pdn_5g_4g_handover

pdn_5g_4g_handover_dft

pdn_5g_4g_handover_idft

status="attempted"
Total NRtoWifi Success Counter

nr_to_untrusted_wifi_handover

pdn_5g_4g_handover

pdn_5g_4g_handover_dft

pdn_5g_4g_handover_idft

status="success"
Total NRtoWifi Failure Counter

nr_to_untrusted_wifi_handover

pdn_5g_4g_handover

pdn_5g_4g_handover_dft

pdn_5g_4g_handover_idft

status="failure",

reason="nr_to_untrusted_wifi_invalid_json"

reason="nr_to_untrusted_wifi_invalid_paa"

reason="nr_to_untrusted_wifi_invalid_msg"

reason="nr_to_untrusted_wifi_pcf_failed"

reason="nr_to_untrusted_wifi_n40_failed"

reason="nr_to_untrusted_wifi_n4_failed"

reason="nr_to_untrusted_wifi_pcf_failed_post_cb"

reason="nr_to_untrusted_wifi_n40_failed_post_cb"

reason="nr_to_untrusted_wifi_n4_failed_post_cb"

reason="nr_to_untrusted_wifi_cbr_failed"

reason="nr_to_untrusted_wifi_n1n2_release_failed"

reason="nr_to_untrusted_wifi_n4_failed_post_ho"

reason="nr_to_untrusted_wifi_pcf_update_failed _post_ho"

reason="nr_to_untrusted_wifi_chf_update_failed _post_ho"
Total WifitoNR Attempted Counter

n26_4g_to_5g_handover

n26ho_4g_5g_dft

n26ho_4g_5g_idft

status="attempted"
Total WifitoNR Success Counter

n26_4g_to_5g_handover

n26ho_4g_5g_dft

n26ho_4g_5g_idft

status="success"
Total WifitoNR Failure Counter

n26_4g_to_5g_handover

n26ho_4g_5g_dft

n26ho_4g_5g_idft

status="failure"
Total eNBtoWifi Attempted Counter

enb_to_untrusted_wifi_handover

status="attempted"
Total eNBtoWifi Success Counter enb_to_untrusted_wifi_handover

status="success"
Total eNBtoWifi Failure Counter enb_to_untrusted_wifi_handover

status="failure",

reason="enb_to_untrusted_wifi_to_enb_ho_reject"

reason="enb_to_untrusted_wifi_to_enb_invalid_ sess_state"

reason="enb_to_untrusted_wifi_to_enb_invalid_json"

reason="enb_to_untrusted_wifi_to_enb_invalid_paa"

reason="enb_to_untrusted_wifi_to_enb_invalid_msg"

reason="enb_to_untrusted_wifi_to_enb_ udm_failed"

reason="enb_to_untrusted_wifi_to_enb_ n40_failed"

reason="enb_to_untrusted_wifi_to_enb_n4_failed"

reason="enb_to_untrusted_wifi_to_enb_pcf_failed _post_cb"

reason="enb_to_untrusted_wifi_to_enb_ mbr_failed"

reason="enb_to_untrusted_wifi_to_enb_n4_failed_ post_mbr"

reason="enb_to_untrusted_wifi_to_enb_n40_failed_ post_cb"

reason="enb_to_untrusted_wifi_to_enb_n4_failed_ post_cb"

reason="enb_to_untrusted_wifi_to_enb_n40_failed_ post_db"

reason="enb_to_untrusted_wifi_to_enb_pcf_failed_ post_db"

reason="enb_to_untrusted_wifi_to_enb_cbr_failed"

reason="enb_to_untrusted_wifi_to_enb_dbr_failed"
Total WifitoeNB Attempted Counter untrusted_wifi_to_enb_handover status="attempted"
Total WifitoeNB Success Counter untrusted_wifi_to_enb_handover

status="success",
Total WifitoeNB Failure Counter untrusted_wifi_to_enb_handover

status="failure",

reason="enb_to_untrusted_wifi_to_enb_ho_reject"

reason="enb_to_untrusted_wifi_to_enb_invalid_ sess_state"

reason="enb_to_untrusted_wifi_to_enb_invalid_json"

reason="enb_to_untrusted_wifi_to_enb_ invalid_paa"

reason="enb_to_untrusted_wifi_to_enb_ invalid_msg"

reason="enb_to_untrusted_wifi_to_enb_ udm_failed"

reason="enb_to_untrusted_wifi_to_enb_ n40_failed"

reason="enb_to_untrusted_wifi_to_enb_n4_failed"

reason="enb_to_untrusted_wifi_to_enb_pcf_ failed_post_cb"

reason="enb_to_untrusted_wifi_to_enb_ mbr_failed"

reason="enb_to_untrusted_wifi_to_enb_n4_failed_ post_mbr"

reason="enb_to_untrusted_wifi_to_enb_n40_failed_ post_cb"

reason="enb_to_untrusted_wifi_to_enb_n4_failed_ post_cb"

reason="enb_to_untrusted_wifi_to_enb_n40_failed_ post_db"

reason="enb_to_untrusted_wifi_to_enb_pcf_failed_ post_db"

reason="enb_to_untrusted_wifi_to_enb_cbr_failed"

reason="enb_to_untrusted_wifi_to_enb_dbr_failed"

4G Subscriber

The following table provides details of KPIs related to 4G subscriber statistics.


Note

Labels dnn, qci and rat_type are used to filter the counters. Here, rat_type is eutra.
KPI Name Type Description/Formula Label
Total Active sessions Gauge

Total number of PDN Contexts

(%smf_session_counters%)

 dnn,rat_type="eutra"
Total Active Bearers Gauge

Total number of active Bearers

(%total_bearer%)

 dnn
Total Active Default Bearers Gauge (%total_bearer-dedicated_ bearer%) dnn
Total Active Dedicated Bearers Gauge

Total number of active Dedicated Bearers

(%dedicated_bearer%)

 dnn
Total Bearer Creation Attempted Counter (%pdn_sess_create+ pcf_req_ded_brr_create + eps_fb_ded_brr) status="attempted",dnn
Total Bearers Creation Success Counter (%pdn_sess_create+ pcf_req_ded_brr_create + eps_fb_ded_brr) status="success",dnn
Total Bearers Creation Failure Counter (%pdn_sess_create+ pcf_req_ded_brr_create + eps_fb_ded_brr) status="failure",dnn
Total Dedicated Bearers Attempted Counter (%pcf_req_ded_brr_create + eps_fb_ded_brr %) status="attempted",dnn
Total Dedicated Bearers Failure/Rejected Counter (%pcf_req_ded_brr_create + eps_fb_ded_brr %) status="failure",dnn
Total Dedicated Bearers Success Counter (%pcf_req_ded_brr_create + eps_fb_ded_brr %) status="success", dnn, rat_type="eutra"
Total CSR Attempted Counter (%pdn_sess_create%) status="attempted",dnn
Total CSR Failure/Rejected Counter (%pdn_sess_create%) status="failure",dnn,
Total CSR Success Counter (%pdn_sess_create%) status="success",dnn
Total CBR Attempted Counter (%create_bearer_request%) status="attempted",dnn, fiveqi,rat_type="eutra"
Total CBR failure Counter (%create_bearer_request%) status="failure", fiveqi, dnn, rat_type="eutra"
Total CBR success Counter (%create_bearer_request%) status="success",dnn, fiveqi,rat_type="eutra"
Total CBR retransmission rx Counter (%create_bearer_request%) status="retransmit",dnn, fiveqi,rat_type="eutra"
Total DBR Attempted Counter (%delete_bearer_request %) status="attempted",dnn, fiveqi,rat_type="eutra"
Total DBR failure/Rejected Counter (%delete_bearer_request%) status="failure", fiveqi, dnn, rat_type="eutra"
Total DBR success Counter (%delete_bearer_request %) status="success", fiveqi, dnn, fiveqi,rat_type="eutra"
Total DBR retransmission tx Counter (%delete_bearer_request%) status="retransmit", dnn, fiveqi, rat_type="eutra"
Total UBR Attempted Counter

(%update_bearer_ request%)

 status="attempted",dnn, fiveqi,rat_type="eutra"
Total UBR failure/Rejected Counter (%update_bearer_request %) status="failure", fiveqi, dnn, rat_type="eutra"
Total UBR Success Counter

(%update_bearer_ request%)

 status="success", fiveqi, dnn, rat_type="eutra"
Total UBR retransmission Counter (%update_bearer_request%) status="retransmit",dnn , rat_type="eutra"
Total EPSFB Dedicated Bearers Counter (%eps_fb_ded_brr%) dnn

5G Subscriber

The following table provides details of KPIs related to 5G subscriber statistics.

KPI Name Type Description/Formula Label
Total Active sessions Gauge

Total number of PDU Contexts

(%smf_session_counters%)

 dnn,rat_type="nr"
Total Active Flows Gauge (%policy_pdu_flows_current%) dnn,fiveqi,rat_type="nr"
Total Flow Creation Attempted Counter (%policy_pdu_flows_total%) status="attempted",dnn, fiveqi, rat_type="nr"
Total Flow Creation Success Counter (%policy_pdu_flows_total%) status="success",dnn, fiveqi, rat_type="nr"
Total Flow Creation Failure Counter (%policy_pdu_flows_total%) status="failure",dnn, fiveqi, rat_type="nr"

WiFi Subscriber

The following table provides details of KPIs related to WiFi subscriber statistics.

KPI Name Type Description/Formula Label
Total CSR Attempted Counter (%untrusted_wifi_to_ enb_handover%) status="attempted",dnn, rat_type="wlan"
Total CSR failure/Rejected Counter (%untrusted_wifi_to_ enb_handover%) status="failure",dnn, rat_type="wlan"
Total CSR success Counter (%untrusted_wifi_to_ enb_handover%) status="success",dnn , rat_type="wlan"
Total CBR Attempted Counter

(%create_bearer_request%)

 status="attempted", rat_type="wlan"
Total CBR failure Counter

(%create_bearer_request%)

 status="failure", rat_type="wlan"
Total CBR success Counter

(%create_bearer_request%)

 status="success", rat_type="wlan"
Total DBR Attempted Counter (%delete_bearer_request%) status="attempted", rat_type="wlan"
Total DBR failure/Rejected Counter (%delete_bearer_request %) status="failure", rat_type="wlan"
Total DBR success Counter (%delete_bearer_request %) status="success", rat_type="wlan"