LTE Procedure Alerts

The following table lists LTE procedure alerts.

LTE Procedure Alerts

Alert Rule

Severity

Duration (in mins)

Type

attach_success_rate

Major

15

Communication Alarm

Expression: sum(rate(sgw_service_stats

{sgw_procedure_type=\"initial_attach\",

status=\"success\"}[5m])) by (namespace)/sum(rate(sgw_service_stats

{sgw_procedure_type=\"initial_attach\",status=\"attempted\"}

[5m])) by (namespace) < 0.90

Description: This alert is triggered when attach success rate is less than 90%.

detach_success_rate

Major

15

Communication Alarm

Expression: sum(rate(sgw_service_stats{interface=

\"interface_sgw_ingress\",sgw_procedure_type=\"delete_session_request\",

status=\"success\"}[5m])) by (namespace) /

sum(rate(sgw_service_stats{interface=\"interface_sgw_ingress\",

sgw_procedure_type=\"delete_session_request\",status=

\"attempted\"}[5m])) by (namespace) < 0.90

Description: This alert is triggered when detach success rate is less than 90%.

bearer_creation_

success_rate

Major

15

Communication Alarm

Expression: sum(rate(sgw_service_stats{interface=

\"interface_sgw_ingress\",sgw_procedure_type=\"create_bearer\",

status=\"success\"}[5m])) by (namespace) /

sum(rate(sgw_service_stats{interface=\"interface_sgw_ingress\",

sgw_procedure_type=\"create_bearer\",status=\"attempted\"}

[5m])) by (namespace) < 0.90

Description: This alert is triggered when bearer creation rate is less than 90%.

bearer_deletion_

success_rate

Major

15

Communication Alarm

Expression: sum(rate(sgw_service_stats{interface=

\"interface_sgw_ingress\",sgw_procedure_type=

\"pgw_initiated_dedicated_bearer_deletion\",status=

\"success\"}[5m])) by (namespace) /

sum(rate(sgw_service_stats{interface=\"interface_sgw_ingress\",

sgw_procedure_type=\"pgw_initiated_dedicated_bearer_deletion\",

status=\"attempted\"}[5m])) by (namespace) < 0.90

Description: This alert is triggered when bearer deletion success rate is less than 90%.

bearer_modification_

success_rate

Major

15

Communication Alarm

Expression: sum(rate(sgw_service_stats{interface=

\"interface_sgw_ingress\",sgw_procedure_type=\"update_bearer\",

status=\"success\"}[5m])) by (namespace) /

sum(rate(sgw_service_stats{interface=\"interface_sgw_ingress\",

sgw_procedure_type=\"update_bearer\",status=\"attempted\"}

[5m])) by (namespace) < 0.90

Description: This alert is triggered when bearer modification success rate is less than 90%.

ddn_failure_rate

Major

15

Communication Alarm

Expression: sum(rate(sgw_service_stats

{fail_reason!='null',interface=\"interface_sgw_ingress\",

sub_fail_reason!='null',service_name=\"sgw-service\",

sgw_procedure_type=\"downlink_data_notification\",status=

\"failure\"}[5m])) by (sub_fail_reason,fail_reason,namespace) > 0.10

Description: This alert is triggered when DDN failure rate is greater than 10%.