# HSS Schema Statistics

The Home Subscriber Server (HSS) schema provides operational statistics that can be used for monitoring and troubleshooting the following products: MME.
This schema provides the following types of statistics:

- Counter: A counter records incremental data cumulatively and rolls over when the counter limit is reached. All counter statistics are cumulative and reset only by one of the following methods: roll-over when limit is reached, after a system restart, or after a clear command is performed. The limit depends upon the data type.
- Gauge: A gauge statistic indicates a single value; a snapshot representation of a single point in time within a defined time frame. The gauge changes to a new value with each snapshot though a value may repeat from one period to the next. The limit depends upon the data type.
- Information: This type of statistic provides information, often intended to differentiate sets of statistics; for example, a VPN name or IP address. The type of information provided depends upon the data type.

The data type defines the format of the data for the value provided by the statistic. The following data types are used in statistics for this schema:

- Int32/Int64: An integer, either 32-bit or 64-bit: For statistics with the Int32 data type, the roll-over to zero limit is 4,294,967,295. For statistics with the Int64 data type, the roll-over to zero limit is 18,446,744,073,709,551,615.
- Float: A numeric value that can be represented fractionally; for example, 1.345.
- String: A series of ASCII alphanumeric characters in a single grouping, usually pre-configured.

IMPORTANT:

Unless otherwise indicated, all statistics are counters and all statistics are standards-based.

Key Variables: Every schema has some variables which are typically referred to as 'key variables'. These key variables provide index markers to identify which object the statistics apply to. For example, in the card schema, the card number (variable %card%) uniquely identifies a card. For an HA service, the keys would be "%vpnname%" plus "%servname%", as the combination uniquely identifies an HA service. So, in a given measurement interval, one row of statistics will be generated per unique key. The schema keys are identified in the Description section of the table.
Table 1. Bulk Statistics Variables in the HSS Schema

Variable | Description | Data Type
--- | --- | ---
vpnname | The name of the context configured on the system that is currently facilitating the HSS peer service configuration. This is a key variable. Type: Information | String
vpnid | The identification number of the context configured on the system that is currently facilitating HSS peer service configuration subscriber’s session. This is an internal reference number. This is a key variable. Type: Information | Int32
servname | The name of the service for which HSS statistics are being displayed. This is a key variable. Type: Information | String
servid | The identification number of the service configured on the system that is currently facilitating HSS subscriber sessions. This is an internal reference number. This is a key variable. Type: Information | Int32
sess-cur | The total number of sessions currently accessing the HSS peer service. | Int32
sess-failover | The total number of session failovers occurring on the HSS peer service. | Int32
sess-start | The total number os sessions started on the HSS peer service. | Int32
sess-update | The total number of sessions updated on the HSS peer service. | Int32
sess-terminate | The total number of sessions that were terminated on the HSS peer service. | Int32
msg-ul-req | The total number of Update Location Request messages sent by the HSS peer service to the HSS. | Int32
msg-ul-ans | The total number of Update Location Answer messages received by the HSS peer service from the HSS. | Int32
msg-ulr-retries | The total number of Update Location Request Retry messages sent by the HSS peer service to the HSS. | Int32
msg-ula-timeout | The total number of Update Location Answer Timeout messages received by the HSS peer service fromthe HSS. | Int32
msg-ula-drop | The total number of Update Location Answer Dropped messages received by the HSS peer service fromthe HSS. | Int32
msg-pu-req | The total number of Purge UE Request messages sent by the HSS peer service to the HSS. | Int32
msg-pu-ans | The total number of Purge UE Answer messages received by the HSS peer service from the HSS. | Int32
msg-pur-retries | The total number of Purge UE Request Retry messages sent by the HSS peer service to the HSS. | Int32
msg-pua-timeout | The total number of Purge UE Answer Timeout messages received by the HSS peer service from theHSS. | Int32
msg-pua-drop | The total number of Purge UE Answer Dropped messages received by the HSS peer service from theHSS. | Int32
msg-ai-req | The total number of Authentication Information Request messages sent by the HSS peer service to theHSS. | Int32
msg-ai-ans | The total number of Authentication Information Answer messages received by the HSS peer service fromthe HSS. | Int32
msg-air-retries | The total number of Authentication Information Request Retry messages sent by the HSS peer service tothe HSS. | Int32
msg-aia-timeout | The total number of Authentication Information Answer Timeout messages received by the HSS peerservice from the HSS. | Int32
msg-aia-drop | The total number of Authentication Information Answer Dropped messages received by the HSS peerservice from the HSS. | Int32
msg-cl-req | The total number of Cancel Location Request messages sent by the HSS peer service to the HSS. | Int32
msg-cl-ans | The total number of Cancel Location Answer messages received by the HSS peer service from the HSS. | Int32
msg-clr-retries | The total number of Cancel Location Request Retry messages sent by the HSS peer service to the HSS. | Int32
msg-cla-timeout | The total number of Cancel Location Answer Timeout messages received by the HSS peer service fromthe HSS. | Int32
msg-cla-drop | The total number of Cancel Location Answer Dropped messages received by the HSS peer service fromthe HSS. | Int32
msg-isd-req | The total number of Insert Subscriber Data Request messages received by the HSS peer service from theHSS. | Int32
msg-isd-ans | The total number of Insert Subscriber Data Answer messages sent by the HSS peer service to the HSS. | Int32
msg-isdr-retries | The total number of Insert Subscriber Data Request Retry messages received by the HSS peer servicefrom the HSS. | Int32
msg-isda-timeout | The total number of Insert Subscriber Data Answer Timeout messages sent by the HSS peer service tothe HSS. | Int32
msg-isda-drop | The total number of Insert Subscriber Data Answer Dropped messages sent by the HSS peer service tothe HSS. | Int32
msg-dsd-req | The total number of Delete Subscriber Data Request messages received by the HSS peer service from theHSS. | Int32
msg-dsd-ans | The total number of Delete Subscriber Data Answer messages sent by the HSS peer service to the HSS. | Int32
msg-dsdr-retries | The total number of Delete Subscriber Data Request Retry messages received by the HSS peer servicefrom the HSS. | Int32
msg-dsda-timeout | The total number of Delete Subscriber Data Answer Timeout messages sent by the HSS peer service tothe HSS. | Int32
msg-dsda-drop | The total number of Delete Subscriber Data Answer Dropped messages sent by the HSS peer service tothe HSS. | Int32
msg-r-req | The total number of Reset Request messages received by the HSS peer service from the HSS. | Int32
msg-r-ans | The total number of Reset Answer messages sent by the HSS peer service to the HSS. | Int32
msg-rr-retries | The total number of Reset Request Retry messages received by the HSS peer service from the HSS. | Int32
msg-ra-timeout | The total number of Reset Answer Timeout messages sent by the HSS peer service to the HSS. | Int32
msg-ra-drop | The total number of Reset Answer Dropped messages sent by the HSS peer service to the HSS. | Int32
msg-n-req | The total number of Notify Request messages sent by the HSS peer service to the HSS. | Int32
msg-n-ans | The total number of Notify Answer messages received by the HSS peer service from the HSS. | Int32
msg-nr-retries | The total number of Notify Request Retry messages sent by the HSS peer service to the HSS. | Int32
msg-na-timeout | The total number of Notify Answer Timeout messages received by the HSS peer service from the HSS. | Int32
msg-na-drop | The total number of Notify Answer Dropped messages received by the HSS peer service from the HSS. | Int32
msg-mic-req | The total number of Mobile Identity Check Request messages sent by the HSS peer service to the HSS. | Int32
msg-mic-ans | The total number of Mobile Identity Check Answer messages received by the HSS peer service from theHSS. | Int32
msg-micr-retries | The total number of Mobile Identity Check Request Retry messages sent by the HSS peer service to theHSS. | Int32
msg-mica-timeout | The total number of Mobile Identity Check Answer Timeout messages received by the HSS peer servicefrom the HSS. | Int32
msg-mica-drop | The total number of Mobile Identity Check Answer Dropped messages received by the HSS peer serviceto the HSS. | Int32
msgerror-unable-to-comply | The total number of Update Location Answer messages containing the result code “Unable To Comply”received by the HSS peer service from the HSS. | Int32
msgerror-auth-data-unavailable | The total number of Update Location Answer messages containing the result code “Auth Data Unavailable” received by the HSS peer service from the HSS. | Int32
msgerror-user-unknown | The total number of Update Location Answer messages containing the result code “User Unknown” received by the HSS peer service from the HSS. | Int32
msgerror-equipment-unknown | The total number of Update Location Answer messages containing the result code “Equipment Unknown” received by the HSS peer service from the HSS. | Int32
msgerror-unknow-eps-subscription | The total number of Update Location Answer messages containing the result code “Unknown EPS Subscription” received by the HSS peer service from the HSS. | Int32
msgerror-rat-not-allowed | The total number of Update Location Answer messages containing the result code “RAT Not Allowed” received by the HSS peer service from the HSS. | Int32
msgerror-authorization-rejected | The total number of Update Location Answer messages containing the result code “Authorization Rejected” received by the HSS peer service from the HSS. | Int32
msgerror-roaming-not-allowed | The total number of Update Location Answer messages containing the result code “Roaming Not Allowed” received by the HSS peer service from the HSS. | Int32
msgerror-other-errors | The total number of Update Location Answer messages containing the result code “Other Errors”received by the HSS peer service from the HSS. | Int32
IMPORTANT: For information on statistics that are common to all schema see the Statistics and Counters Overview chapter.