# SGs Schema Statistics

The SGs 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 Statistic Variables in the SGs Schema

Variables | Description | Data Type
--- | --- | ---
vpnname | The name of the context configured on the system that is currently facilitating the S-GW service. This is a key variable. Type: Information | String
vpnid | The identification number of the context configured on the system that is currently facilitating the S-GW service. This is an internal reference number. This is a key variable. Type: Information | Int32
servname | Displays the name of the S-GW service for which the statistics are displayed. This is a key variable. Type: Information | String
servid | The identification number of the service configured on the system that is currently facilitating the S-GW service. This is an internal reference number. This is a key variable. Type: Information | Int32
pag-req-tx | SGS-AP Statistics - The total number of paging requests transmitted by this service. Type: Counter | Int32
pag-req-retx | SGS-AP Statistics - The total number of paging requests retransmitted by this service. Type: Counter | Int32
pag-req-rx | SGS-AP Statistics - The total number of paging requests received by this service. Type: Counter | Int32
pag-rej-tx | SGS-AP Statistics - The total number of paging reject messages transmitted by this service. Type: Counter | Int32
pag-rej-retx | SGS-AP Statistics - The total number of paging reject messages retransmitted by this service. Type: Counter | Int32
pag-rej-rx | SGS-AP Statistics - The total number of paging reject messages received by this service. Type: Counter | Int32
service-req-tx | SGS-AP Statistics - The total number of service request messages transmitted by this service. Type: Counter | Int32
service-req-retx | SGS-AP Statistics - The total number of service request messages retransmitted by this service. Type: Counter | Int32
service-req-rx | SGS-AP Statistics - The total number of service request messages received by this service. Type: Counter | Int32
dl-ud-tx | SGS-AP Statistics - The total number of downlink unit data messages transmitted by this service. Type: Counter | Int32
dl-ud-retx | SGS-AP Statistics - The total number of downlink unit data messages retransmitted by this service. Type: Counter | Int32
dl-ud-rx | SGS-AP Statistics - The total number of downlink unit data messages received by this service. Type: Counter | Int32
ul-ud-tx | SGS-AP Statistics - The total number of uplink unit data messages transmitted by this service. Type: Counter | Int32
ul-ud-retx | SGS-AP Statistics - The total number of uplink unit data messages retransmitted by this service. Type: Counter | Int32
ul-ud-rx | SGS-AP Statistics - The total number of uplink unit data messages received by this service. Type: Counter | Int32
localupd-req-tx | SGS-AP Statistics - The total number of location update request messages transmitted by this service. Type: Counter | Int32
localupd-req-retx | SGS-AP Statistics - The total number of location update request messages retransmitted by this service. Type: Counter | Int32
localupd-req-rx | SGS-AP Statistics - The total number of location update request messages received by this service. Type: Counter | Int32
localupd-accept-tx | SGS-AP Statistics - The total number of location update accept messages transmitted by this service. Type: Counter | Int32
localupd-accept-retx | SGS-AP Statistics - The total number of location update accept messages retransmitted by this service. Type: Counter | Int32
localupd-accept-rx | SGS-AP Statistics - The total number of location update accept messages received by this service. Type: Counter | Int32
localupd-rej-tx | SGS-AP Statistics - The total number of location update reject messages transmitted by this service. Type: Counter | Int32
localupd-rej-retx | SGS-AP Statistics - The total number of location update reject messages retransmitted by this service. Type: Counter | Int32
localupd-rej-rx | SGS-AP Statistics - The total number of location update reject messages received by this service. Type: Counter | Int32
tmsi-reloc-tx | SGS-AP Statistics - The total number of TMSI reallocation complete messages transmitted by this service. Type: Counter | Int32
tmsi-reloc-retx | SGS-AP Statistics - The total number of TMSI reallocation complete messages retransmitted by this service. Type: Counter | Int32
tmsi-reloc-rx | SGS-AP Statistics - The total number of TMSI reallocation complete messages received by this service. Type: Counter | Int32
alert-req-tx | SGS-AP Statistics - The total number of alert request messages transmitted by this service. Type: Counter | Int32
alert-req-retx | SGS-AP Statistics - The total number of alert request messages retransmitted by this service. Type: Counter | Int32
alert-req-rx | SGS-AP Statistics - The total number of alert request messages received by this service. Type: Counter | Int32
alert-ack-tx | SGS-AP Statistics - The total number of alert ack messages transmitted by this service. Type: Counter | Int32
alert-ack-retx | SGS-AP Statistics - The total number of alert ack messages retransmitted by this service. Type: Counter | Int32
alert-ack-rx | SGS-AP Statistics - The total number of alert ack messages received by this service. Type: Counter | Int32
alert-rej-tx | SGS-AP Statistics - The total number of alert reject messages transmitted by this service. Type: Counter | Int32
alert-rej-retx | SGS-AP Statistics - The total number of alert reject messages retransmitted by this service. Type: Counter | Int32
alert-rej-rx | SGS-AP Statistics - The total number of alert reject messages received by this service. Type: Counter | Int32
ue-actind-tx | SGS-AP Statistics - The total number of UE activity indication messages transmitted by this service. Type: Counter | Int32
ue-actind-retx | SGS-AP Statistics - The total number of UE activity indication messages retransmitted by this service. Type: Counter | Int32
ue-actind-rx | SGS-AP Statistics - The total number of UE activity indication messages received by this service. Type: Counter | Int32
eps-detind-tx | SGS-AP Statistics - The total number of EPS detach indication messages transmitted by this service. Type: Counter | Int32
eps-detind-retx | SGS-AP Statistics - The total number of EPS detach indication messages retransmitted by this service. Type: Counter | Int32
eps-detind-rx | SGS-AP Statistics - The total number of EPS detach indication messages received by this service. Type: Counter | Int32
eps-detack-tx | SGS-AP Statistics - The total number of EPS detach ack messages transmitted by this service. Type: Counter | Int32
eps-detack-retx | SGS-AP Statistics - The total number of EPS detach ack messages retransmitted by this service. Type: Counter | Int32
eps-detack-rx | SGS-AP Statistics - The total number of EPS detach ack messages received by this service. Type: Counter | Int32
imsi-detind-tx | SGS-AP Statistics - The total number of IMSI detach indication messages transmitted by this service. Type: Counter | Int32
imsi-detind-retx | SGS-AP Statistics - The total number of IMSI detach indication messages retransmitted by this service. Type: Counter | Int32
imsi-detind-rx | SGS-AP Statistics - The total number of IMSI detach indication messages received by this service. Type: Counter | Int32
imsi-detack-tx | SGS-AP Statistics - The total number of IMSI detach ack messages transmitted by this service. Type: Counter | Int32
imsi-detack-retx | SGS-AP Statistics - The total number of IMSI detach ack messages retransmitted by this service. Type: Counter | Int32
imsi-detack-rx | SGS-AP Statistics - The total number of IMSI detach ack messages received by this service. Type: Counter | Int32
reset-ind-tx | SGS-AP Statistics - The total number of reset indication messages transmitted by this service. Type: Counter | Int32
reset-ind-retx | SGS-AP Statistics - The total number of reset indication messages retransmitted by this service. Type: Counter | Int32
reset-ind-rx | SGS-AP Statistics - The total number of reset indication messages received by this service. Type: Counter | Int32
reset-ack-tx | SGS-AP Statistics - The total number of reset ack messages transmitted by this service. Type: Counter | Int32
reset-ack-retx | SGS-AP Statistics - The total number of reset ack messages retransmitted by this service. Type: Counter | Int32
reset-ack-rx | SGS-AP Statistics - The total number of reset ack messages received by this service. Type: Counter | Int32
mm-inforeq-tx | SGS-AP Statistics - The total number of MM information request messages transmitted by this service. Type: Counter | Int32
mm-inforeq-retx | SGS-AP Statistics - The total number of MM information request messages retransmitted by this service. Type: Counter | Int32
mm-inforeq-rx | SGS-AP Statistics - The total number of MM information request messages received by this service. Type: Counter | Int32
rel-req-tx | SGS-AP Statistics - The total number of release request messages transmitted by this service. Type: Counter | Int32
rel-req-retx | SGS-AP Statistics - The total number of release request messages retransmitted by this service. Type: Counter | Int32
rel-req-rx | SGS-AP Statistics - The total number of release request messages received by this service. Type: Counter | Int32
status-tx | SGS-AP Statistics - The total number of status messages transmitted by this service. Type: Counter | Int32
status-retx | SGS-AP Statistics - The total number of status messages retransmitted by this service. Type: Counter | Int32
status-rx | SGS-AP Statistics - The total number of status messages received by this service. Type: Counter | Int32
ue-unreach-tx | SGS-AP Statistics - The total number of UE unreachable messages transmitted by this service. Type: Counter | Int32
ue-unreach-retx | SGS-AP Statistics - The total number of UE unreachable messages retransmitted by this service. Type: Counter | Int32
ue-unreach-rx | SGS-AP Statistics - The total number of UE unreachable messages received by this service. Type: Counter | Int32
unk-msg-tx | SGS-AP Statistics - The total number of unknown messages transmitted by this service. Type: Counter | Int32
unk-msg-retx | SGS-AP Statistics - The total number of unknown messages retransmitted by this service. Type: Counter | Int32
unk-msg-rx | SGS-AP Statistics - The total number of unknown messages received by this service. Type: Counter | Int32
IMPORTANT: For information on statistics that are common to all schema see the Statistics and Counters Overview chapter.