# SS7Link Schema Statistics

The SS7Link schema provides operational statistics that can be used for monitoring and troubleshooting the following products: SGSN
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 SS7 Link

Variables | Description | Data Type
--- | --- | ---
ss7rd-number | Number identifies the SS7 routing domain. This is a key variable. | Int32
ss7-linkset-id | Link set identifier This is a key variable. | Int32
ss7-link-id | Link identifier This is a key variable. | Int32
ss7-link-mtp3-changeover-order-tx | Changeover order sent per SS7 Routing Domain ID, Linkset ID, and Link ID. | Int32
ss7-link-mtp3-changeover-order-rx | Changeover order received per SS7 Routing Domain ID, Linkset ID, and Link ID. | Int32
ss7-link-mtp3-changeover-order-ack-tx | Changeover order acknowledgement sent per SS7 Routing Domain ID, Linkset ID, and Link ID. | Int32
ss7-link-mtp3-changeover-order-ack-rx | Changeover order acknowledgement received per SS7 Routing Domain ID, Linkset ID, and Link ID. | Int32
ss7-link-mtp3-changeback-declaration-tx | Change-back declaration sent per SS7 Routing Domain ID, Linkset ID, and Link ID. | Int32
ss7-link-mtp3-changeback-declaration-rx | Change-back declaration received per SS7 Routing Domain ID, Linkset ID, and Link ID. | Int32
ss7-link-mtp3-changeback-ack-tx | Change-back acknowledgement sent per SS7 Routing Domain ID, Linkset ID, and Link ID. | Int32
ss7-link-mtp3-changeback-ack-rx | Change-back acknowledgement received per SS7 Routing Domain ID, Linkset ID, and Link ID. | Int32
ss7-link-mtp3-emergency-changeover-tx | Emergency Changeover sent per SS7 Routing Domain ID, Linkset ID, and Link ID. | Int32
ss7-link-mtp3-emergency-changeover-rx | Emergency Changeover received per SS7 Routing Domain ID, Linkset ID, and Link ID. | Int32
ss7-link-mtp3-emergency-changeover-ack-tx | Emergency Changeover acknowledgement sent per SS7 Routing Domain ID, Linkset ID, and Link ID. | Int32
ss7-link-mtp3-emergency-changeover-ack-rx | Emergency Changeover acknowledgement received per SS7 Routing Domain ID, Linkset ID, and Link ID. | Int32
ss7-link-mtp3-inhibit-tx | Link Inhibit sent per SS7 Routing Domain ID, Linkset ID, and Link ID. | Int32
ss7-link-mtp3-inhibit-rx | Link Inhibit received per SS7 Routing Domain ID, Linkset ID, and Link ID. | Int32
ss7-link-mtp3-inhibit-ack-tx | Link Inhibit acknowledgement sent per SS7 Routing Domain ID, Linkset ID, and Link ID. | Int32
ss7-link-mtp3-inhibit-ack-rx | Link Inhibit acknowledgement received per SS7 Routing Domain ID, Linkset ID, and Link ID. | Int32
ss7-link-mtp3-uninhibit-tx | Link Uninhibit sent per SS7 Routing Domain ID, Linkset ID, and Link ID. | Int32
ss7-link-mtp3-uninhibit-rx | Link Uninhibit received per SS7 Routing Domain ID, Linkset ID, and Link ID. | Int32
ss7-link-mtp3-uninhibit-ack-tx | Link Uninhibit acknowledgement sent per SS7 Routing Domain ID, Linkset ID, and Link ID. | Int32
ss7-link-mtp3-uninhibit-ack-rx | Link Uninhibit acknowledgement received per SS7 Routing Domain ID, Linkset ID, and Link ID. | Int32
ss7-link-mtp3-inhibit-deny-tx | Link Inhibit Denied sent per SS7 Routing Domain ID, Linkset ID, and Link ID. | Int32
ss7-link-mtp3-inhibit-deny-rx | Link Inhibit Denied received per SS7 Routing Domain ID, Linkset ID, and Link ID. | Int32
ss7-link-mtp3-force-uninhibit-tx | Link force uninhibit sent per SS7 Routing Domain ID, Linkset ID, and Link ID. | Int32
ss7-link-mtp3-force-uninhibit-rx | Link force uninhibit received per SS7 Routing Domain ID, Linkset ID, and Link ID. | Int32
ss7-link-mtp3-local-inhibit-test-tx | Link local inhibit test sent per SS7 Routing Domain ID, Linkset ID, and Link ID. | Int32
ss7-link-mtp3-local-inhibit-test-rx | Link local inhibit test received per SS7 Routing Domain ID, Linkset ID, and Link ID. | Int32
ss7-link-mtp3-remote-inhibit-test-tx | Link remote inhibit test sent per SS7 Routing Domain ID, Linkset ID, and Link ID. | Int32
ss7-link-mtp3-remote-inhibit-test-rx | Link remote inhibit test received per SS7 Routing Domain ID, Linkset ID, and Link ID. | Int32
ss7-link-mtp3-connection-order-tx | Link connection order sent per SS7 Routing Domain ID, Linkset ID, and Link ID. | Int32
ss7-link-mtp3-connection-order-rx | Link connection order received per SS7 Routing Domain ID, Linkset ID, and Link ID. | Int32
ss7-link-mtp3-connection-order-ack-tx | Link connection order acknowledgement sent per SS7 Routing Domain ID, Linkset ID, and Link ID. | Int32
ss7-link-mtp3-connection-order-ack-rx | Link connection order acknowledgement received per SS7 Routing Domain ID, Linkset ID, and Link ID. | Int32
ss7-link-mtp3-test-tx | Link Test sent per SS7 Routing Domain ID, Linkset ID, and Link ID. | Int32
ss7-link-mtp3-test-rx | Link Test received per SS7 Routing Domain ID, Linkset ID, and Link ID. | Int32
ss7-link-mtp3-test-ack-tx | Link Test acknowledgement sent per SS7 Routing Domain ID, Linkset ID, and Link ID. | Int32
ss7-link-mtp3-test-ack-rx | Link Test acknowledgement received per SS7 Routing Domain ID, Linkset ID, and Link ID. | Int32
ss7-link-mtp3-sif-octet-tx | SIF octets sent per SS7 Routing Domain ID, Linkset ID, and Link ID. | Int32
ss7-link-mtp3-sif-octet-rx | SIF octets received per SS7 Routing Domain ID, Linkset ID, and Link ID. | Int32
ss7-link-mtp3-sio-octet-tx | SIO octet sent per SS7 Routing Domain ID, Linkset ID, and Link ID. | Int32
ss7-link-mtp3-sio-octet-rx | SIO octet received per SS7 Routing Domain ID, Linkset ID, and Link ID. | Int32
ss7-link-mtp3-sio-msu-tx | MSUs sent per SS7 Routing Domain ID, Linkset ID, and Link ID. | Int32
ss7-link-mtp3-sio-msu-rx | MSUs received per SS7 Routing Domain ID, Linkset ID, and Link ID. | Int32
ss7-link-mtp3-tx-msu-dropped | MSUs dropped per SS7 Routing Domain ID, Linkset ID, and Link ID. | Int32
ss7-link-mtp3-tx-msu-congestion-dropped | MSUs dropped due to congestion per SS7 Routing Domain ID, Linkset ID, and Link ID. | Int32
ss7-link-mtp3-invalid-pdu-rx | Invalid PDUs received per SS7 Routing Domain ID, Linkset ID, and Link ID. | Int32
ss7-link-mtp3-congestion-threshold1 | Link congestion threshold 1 per SS7 Routing Domain ID, Linkset ID, and Link ID. | Int32
ss7-link-mtp3-congestion-threshold2 | Link congestion threshold 2 per SS7 Routing Domain ID, Linkset ID, and Link ID. | Int32
ss7-link-mtp3-congestion-threshold3 | Link congestion threshold 3 per SS7 Routing Domain ID, Linkset ID, and Link ID. | Int32
ss7-link-mtp3-unavail-duration | Link unavailable duration per SS7 Routing Domain ID, Linkset ID, and Link ID. | Int32
ss7-link-mtp3-congested-duration | Link Congested duration per SS7 Routing Domain ID, Linkset ID, and Link ID. | Int32
ss7-link-mtp3-inhibited-duration | Description: Total inhibited duration of the SS7 MTP3 link in deci-seconds. This counter is specific to releases 8.1 and higher. Triggers: 1. Increments when the SGSN’s MTP3 link is inhibited, using a management operation command, for maintenance or testing purposes. 2. Increments when the SGSN receives an Inhibit MTP3 message from the remote end. Availability: per MTP3 layer of the SS7 link Type: Counter | Int 32
ss7-signalling-link-failure | Description: Total number of times the MTP3 link has failed between the SGSN and another network element and caused a loss of link connectivity. Triggers: Increments when SS7 signaling link goes to inactive state from active state due to link failure due to: - physical link failure - peer restarts - link is put-down by management for maintenance - no response from the peer node and the SSCOP link ‘keep-alive- timer timeslot Availability: per SS7 routing domain, per linkset, per link Type: Counter | Int32
ss7-dpc-point-code | Destination Point Code | Int32
ss7-dpc-route-set-test-msg-tx | Route set test messages sent per SS7 Routing Domain ID and Destination Point Code. | Int32
ss7-dpc-route-set-congestion-test-msg-tx | Route set congestion test message sent per SS7 Routing Domain ID and Destination Point Code. | Int32
ss7-dpc-transfer-prohibited-tx | Transfer prohibited sent per SS7 Routing Domain ID and Destination Point Code. | Int32
ss7-dpc-transfer-restricted-tx | Transfer restricted sent per SS7 Routing Domain ID and Destination Point Code. | Int32
ss7-dpc-transfer-allowed-tx | Transfer allowed sent per SS7 Routing Domain ID and Destination Point Code. | Int32
ss7-dpc-transfer-controlled-tx | Transfer controlled sent per SS7 Routing Domain ID and Destination Point Code. | Int32
ss7-dpc-sif-octets-tx | Number of SIF octets sent per SS7 Routing Domain ID and Destination Point Code. | Int32
ss7-dpc-sio-octets-tx | Number of SIO octets sent per SS7 Routing Domain ID and Destination Point Code. | Int32
ss7-dpc-route-set-test-msg-rx | Route set test message received per SS7 Routing Domain ID and Destination Point Code. | Int32
ss7-dpc-route-set-congestion-test-msg-rx | Route set congestion test message received per SS7 Routing Domain ID and Destination Point Code. | Int32
ss7-dpc-transfer-prohibited-rx | Transfer prohibited received per SS7 Routing Domain ID and Destination Point Code. | Int32
ss7-dpc-transfer-restricted-rx | Transfer restricted received per SS7 Routing Domain ID and Destination Point Code. | Int32
ss7-dpc-transfer-allowed-rx | Transfer allowed received per SS7 Routing Domain ID and Destination Point Code. | Int32
ss7-dpc-transfer-controlled-rx | Transfer controlled received per SS7 Routing Domain ID and Destination Point Code. | Int32
ss7-dpc-usn-msg-rx | Number of USN message received per SS7 Routing Domain ID and Destination Point Code. | Int32
ss7-dpc-unavailable-duration | Route Unavailable duration per SS7 Routing Domain ID and Destination Point Code. | Int32
ss7-dpc-unavailable-count | Route unavailable count per SS7 Routing Domain ID and Destination Point Code. | Int32
ss7-link-sscf-mtp3-frames-tx | MTP3 Frames sent per SS7 Routing Domain ID, Linkset ID, and Link ID. | Int32
ss7-link-sscf-out-of-service-pdu-tx | Out of service Pdu sent per SS7 Routing Domain ID, Linkset ID, and Link ID. | Int32
ss7-link-sscf-processor-outage-tx | Processor outage Pdu sent per SS7 Routing Domain ID, Linkset ID, and Link ID. | Int32
ss7-link-sscf-in-service-pdu-tx | In service Pdu sent per SS7 Routing Domain ID, Linkset ID, and Link ID. | Int32
ss7-link-sscf-normal-pdu-tx | Normal Pdu sent per SS7 Routing Domain ID, Linkset ID, and Link ID. | Int32
ss7-link-sscf-emergency-pdu-tx | Emergency Pdu sent per SS7 Routing Domain ID, Linkset ID, and Link ID. | Int32
ss7-link-sscf-alignment-not-successfull-pdu-tx | Alignment not successful Pdu sent per SS7 Routing Domain ID, Linkset ID, and Link ID. | Int32
ss7-link-sscf-management-initiated-pdu-tx | Management initiated Pdu sent per SS7 Routing Domain ID, Linkset ID, and Link ID. | Int32
ss7-link-sscf-protocol-error-pdu-tx | Protocol error pdu sent per SS7 Routing Domain ID, Linkset ID, and Link ID. | Int32
ss7-link-sscf-proving-not-successfull-pdu-tx | Proving not successful Pdu sent per SS7 Routing Domain ID, Linkset ID, and Link ID. | Int32
ss7-link-sscf-mtp3-frames-rx | MTP3 Frames received per SS7 Routing Domain ID, Linkset ID, and Link ID. | Int32
ss7-link-sscf-out-of-service-pdu-rx | Out of service Pdu received per SS7 Routing Domain ID, Linkset ID, and Link ID. | Int32
ss7-link-sscf-processor-outage-rx | Processor outage Pdu received per SS7 Routing Domain ID, Linkset ID, and Link ID. | Int32
ss7-link-sscf-in-service-pdu-rx | In service Pdu received per SS7 Routing Domain ID, Linkset ID, and Link ID. | Int32
ss7-link-sscf-normal-pdu-rx | Normal Pdu received per SS7 Routing Domain ID, Linkset ID, and Link ID. | Int32
ss7-link-sscf-emergency-pdu-rx | Emergency Pdu received per SS7 Routing Domain ID, Linkset ID, and Link ID. | Int32
ss7-link-sscf-alignment-not-successfull-pdu-rx | Alignment not successful Pdu received per SS7 Routing Domain ID, Linkset ID, and Link ID. | Int32
ss7-link-sscf-management-initiated-pdu-rx | Management initiated Pdu received per SS7 Routing Domain ID, Linkset ID, and Link ID. | Int32
ss7-link-sscf-protocol-error-pdu-rx | Protocol error PDU received per SS7 Routing Domain ID, Linkset ID, and Link ID. | Int32
ss7-link-sscf-proving-not-successfull-pdu-rx | Proving not successful Pdu received per SS7 Routing Domain ID, Linkset ID, and Link ID. | Int32
ss7-link-qsaal-vpi | Virtual path identifier per SS7 Routing Domain ID, Linkset ID, and Link ID used for the Quasi Signaling Application Adaptation Layer (QSAAL). | Int32
ss7-link-qsaal-vci | Virtual channel identifier per SS7 Routing Domain ID, Linkset ID, and Link ID. | Int32
ss7-link-qsaal-req-initialization-tx | Request Initialization (BGN) sent per SS7 Routing Domain ID, Linkset ID, and Link ID. | Int32
ss7-link-qsaal-req-ack-tx | Request Acknowledgement (BGAK) sent per SS7 Routing Domain ID, Linkset ID, and Link ID. | Int32
ss7-link-qsaal-connection-reject-tx | Connection Reject (BGREJ) sent per SS7 Routing Domain ID, Linkset ID, and Link ID. | Int32
ss7-link-qsaal-disconnect-command-tx | Disconnect Command (END) sent per SS7 Routing Domain ID, Linkset ID, and Link ID. | Int32
ss7-link-qsaal-disconnect-ack-tx | Disconnect Acknowledgement (ENDAK) sent per SS7 Routing Domain ID, Linkset ID, and Link ID. | Int32
ss7-link-qsaal-resynchronization-command-tx | Resynchronization Command (RS) sent per SS7 Routing Domain ID, Linkset ID, and Link ID. | Int32
ss7-link-qsaal-resynchronization-ack-tx | Resynchronization Acknowledgement (RSAK) sent per SS7 Routing Domain ID, Linkset ID, and Link ID. | Int32
ss7-link-qsaal-recovery-command-tx | Recovery Command (ER) sent per SS7 Routing Domain ID, Linkset ID, and Link ID. | Int32
ss7-link-qsaal-recovery-ack-tx | Recovery Acknowledgement (ERAK) sent per SS7 Routing Domain ID, Linkset ID, and Link ID. | Int32
ss7-link-qsaal-seq-connection-mode-data-tx | Sequenced Connection-mode Data (SD) sent per SS7 Routing Domain ID, Linkset ID, and Link ID. | Int32
ss7-link-qsaal-poll-tx | Transmitter State Information with request for Receive State Information (POLL) sent per SS7 Routing Domain ID, Linkset ID, and Link ID. | Int32
ss7-link-qsaal-stat-tx | Solicited Receiver State Information (STAT) sent per SS7 Routing Domain ID, Linkset ID, and Link ID. | Int32
ss7-link-qsaal-ustat-tx | Unsolicited Receiver State Information (USTAT) sent per SS7 Routing Domain ID, Linkset ID, and Link ID. | Int32
ss7-link-qsaal-unnumbered-user-data-tx | Unnumbered User Data (UD) sent per SS7 Routing Domain ID, Linkset ID, and Link ID. | Int32
ss7-link-qsaal-unnumbered-management-data-tx | Unnumbered Management Data (MD) sent per SS7 Routing Domain ID, Linkset ID, and Link ID. | Int32
ss7-link-qsaal-unknown-pdu-type-tx | Unknown PDU Type sent per SS7 Routing Domain ID, Linkset ID, and Link ID. | Int32
ss7-link-qsaal-tx-discarded-sdus | SDUs discarded sent per SS7 Routing Domain ID, Linkset ID, and Link ID. | Int32
ss7-link-qsaal-tx-pdus-error-pdus | PDUs with error sent per SS7 Routing Domain ID, Linkset ID, and Link ID. | Int32
ss7-link-qsaal-tx-discarded-pdus | PDUs discarded sent per SS7 Routing Domain ID, Linkset ID, and Link ID. | Int32
ss7-link-qsaal-tx-buffer-in-use-counter | Buffer in-use counter sent per SS7 Routing Domain ID, Linkset ID, and Link ID. | Int32
ss7-link-qsaal-tx-buffer-in-use-gauge | Buffer in-use gauge sent per SS7 Routing Domain ID, Linkset ID, and Link ID. This statistic value is of Gauge. | Int32
ss7-link-qsaal-req-initialization-rx | Request Initialization (BGN) received per SS7 Routing Domain ID, Linkset ID, and Link ID. | Int32
ss7-link-qsaal-req-ack-rx | Request Acknowledgement (BGAK) received per SS7 Routing Domain ID, Linkset ID, and Link ID. | Int32
ss7-link-qsaal-connection-reject-rx | Connection Reject (BGREJ) received per SS7 Routing Domain ID, Linkset ID, and Link ID. | Int32
ss7-link-qsaal-disconnect-command-rx | Disconnect Command (END) received per SS7 Routing Domain ID, Linkset ID, and Link ID. | Int32
ss7-link-qsaal-disconnect-ack-rx | Disconnect Acknowledgement (ENDAK) received per SS7 Routing Domain ID, Linkset ID, and Link ID. | Int32
ss7-link-qsaal-resynchronization-command-rx | Resynchronization Command (RS) received per SS7 Routing Domain ID, Linkset ID, and Link ID. | Int32
ss7-link-qsaal-resynchronization-ack-rx | Resynchronization Acknowledgement (RSAK) received per SS7 Routing Domain ID, Linkset ID, and Link ID. | Int32
ss7-link-qsaal-recovery-command-rx | Recovery Command (ER) received per SS7 Routing Domain ID, Linkset ID, and Link ID. | Int32
ss7-link-qsaal-recovery-ack-rx | Recovery Acknowledgement (ERAK) received per SS7 Routing Domain ID, Linkset ID, and Link ID. | Int32
ss7-link-qsaal-seq-connection-mode-data-rx | Sequenced Connection-mode Data (SD) received per SS7 Routing Domain ID, Linkset ID, and Link ID. | Int32
ss7-link-qsaal-poll-rx | Transmitter State Information with request for Receive State Information (POLL) received per SS7 Routing Domain ID, Linkset ID, and Link ID. | Int32
ss7-link-qsaal-stat-rx | Solicited Receiver State Information (STAT) received per SS7 Routing Domain ID, Linkset ID, and Link ID. | Int32
ss7-link-qsaal-ustat-rx | Unsolicited Receiver State Information (USTAT) received per SS7 Routing Domain ID, Linkset ID, and Link ID. | Int32
ss7-link-qsaal-unnumbered-user-data-rx | Unnumbered User Data (UD) received per SS7 Routing Domain ID, Linkset ID, and Link ID. | Int32
ss7-link-qsaal-unnumbered-management-data-rx | Unnumbered Management Data (MD) received per SS7 Routing Domain ID, Linkset ID, and Link ID. | Int32
ss7-link-qsaal-unknown-pdu-type-rx | Unknown PDU Type received per SS7 Routing Domain ID, Linkset ID, and Link ID. | Int32
ss7-link-qsaal-rx-pdus-error-pdus | PDUs with error received per SS7 Routing Domain ID, Linkset ID, and Link ID. | Int32
ss7-link-qsaal-rx-discarded-pdus | PDUs discarded received per SS7 Routing Domain ID, Linkset ID, and Link ID. | Int32
ss7-link-qsaal-rx-buffer-in-use-counter | Buffer in-use counter received per SS7 Routing Domain ID, Linkset ID, and Link ID. | Int32
ss7-link-qsaal-rx-buffer-in-use-gauge | Buffer in-use gauge received per SS7 Routing Domain ID, Linkset ID, and Link ID. This statistic value is of Gauge. | Int32
IMPORTANT: For information on statistics that are common to all schema see the Statistics and Counters Overview chapter.