Acronyms

The following tables provide information about the acronyms and the terminology used in this document.

Table - Acronyms

Acronym	Description
API	Application Programming Interface
ARR	Application Route Rule
ART	Application Route Table
CM	Counter Measure
COTS	Commercial Off the Shelf
CPU	Central Processing Unit
DA-MP	Diameter Agent Message Processor
DB	Database
DP	Database Processor
DSA	Diameter Security Application
DSR	Diameter Signaling Router
EIR	Equipment Identity Register
ETG	Egress Throttle Group
FABR	Full Address Based Resolution
FQDN	Fully Qualified Domain Name
GB	Gigabyte
HDD	Hard Disk Drive
HP	Hewlett Packard
HSS	Home Subscriber Server
HTTP	Hypertext Transfer Protocol
ID	Identification
IDIH	Integrated Diameter Intelligence Hub
IMI	Internal Message Interface
IMSI	International Mobile Subscriber Identity
I/O	Input/Output
IOP	Interoperability
IoT	Internet of Things
IP	Internet Protocol
IPCAN	Internet Protocol Connectivity Access Network
IPFE	IP Front End
KPI	Key Performance Indicator
KSM	Kernel Same-page Merging
KVM	Kernel-based virtual machine
LSI	Large Scale Integration
LTE	Long Term Evolution
MME	Mobility Management Entity
MNO	Mobile Network Operator
MP	Message Processor
MPS	Messages Per Second
MSISDN	Mobile Station International Subscriber Directory Number
MTC	Machine Type Communication
NIC	Network Interface Card
NOAM	Network Operations, Alarms, Measurements
NE	Network Element
OAM	Operations, Administration, and Maintenance
OCDSR	Oracle Communications Diameter Signaling Router
OCSG	Oracle Communications Services Gatekeeper
OHC	Oracle Help Center
PCRF	Policy and Charging Rules Function
PDRA	Policy Diameter Routing Agent
PRR	Peer Route Rule
PVSCSI	Paravirtual SCSI
RAM	Random Access Memory
RBAR	Range Based Address Resolution
SAS	Serial Attached SCSC
SBR	Session Binding Repository
SBR(b)	SBR – Binding database
SBR(s)	SBR – Session database
SBR(u)	SBR – Universal database
SCS/AS	Service Centralization and Continuity Application Server
SCSI	Small Computer System Interface
SDS	Subscriber Database Server
SFF	Small Form Factor
SGSN	Serving GPRS Support Node
SMS	Short Message Service
SOAM	System (nodal) Operations, Alarms, Measurements
SS7	Signaling System #7
SSD	Solid State Drive
THP	Transparent Huge Pages
TSA	Target Set Address
TTP	Troubleshooting Trigger Point
vSTP	virtual Signaling Transfer Point
UDR-NO	User Data Repository Network OAM & Provisioning
VM	Virtual Machine
VNF	Virtual Network Function
VoLTE	Voice over LTE
WAN	Wide Area Network
XMI	External Management Interface
XSI	External Signaling Interface

Table - Terminology

Term	Description
1+1 Redundancy	For every 1, an additional 1 is needed to support redundant capacity. The specific redundancy scheme is not inferred. For example, active-active and active-standby.
Geo-Diverse	Refers to DSR equipment located at geographically separated sites/datacenters.
Geo-Redundant	A node at a geo-diverse location which can assume the processing load for another DSR signaling node(s).
Ingress Message Rate	A measure of the total Diameter messages per second ingressing the DSR. For this measure, a message is defined as any Diameter message that DSR reads from a Diameter peer connection independent of how the message is processed by the DSR.
Messages Per Second	A measure of the DSR Diameter message processing volume in messages per second. For this measure, a message is defined as: DSR processing of an ingress Diameter message and either transmitting a single outgoing Diameter message or discarding the ingress message. The outgoing message may be a variant of, or a response to, the ingress message. DSR transmission of any Diameter message, as required by DSR configuration, that is associated with incremental actions/events associated with #1 above. For example, the re-routing of a Request upon connection failure or the copying of a Request. Messages excluded from this measure are: Diameter peer-to-peer messages: CER/CEA, DWR/DWA, and DPR/DPA Ingress Diameter messages discarded by the DSR due to Overload controls Answers received in response to Message Copy For the vSTP MP the MPS excludes the equivalent SSNM status management messages.
N+K Redundancy	For every N, an additional K is needed to support redundant capacity. The specific redundancy scheme is not inferred. For example, active-active, active-standby.
Node	A DSR node is a DSR signaling node (SOAM and subtending topology), an NOAM node or an SDS node. A node is synonymous with the network element (NE).
Site	A specific geographic location or datacenter where DSR application is installed.