20 R
R-URI
Request Uniform Resource Identifiers
RAA
Re-Authorization Answer (Gx or Rx Diameter command)
Rack Mount Server
A server in a rack-mount form factor.
RADB
Remote Agent Database
RADIUS
Remote Authentication Dial-In User Service
A client/server protocol and associated software that enables remote access servers to communicate with a central server to authorize their access to the requested service. The MPE device functions with RADIUS servers to authenticate messages received from remote gateways. See also Diameter.
RAID
Redundant Array of Independent Disks
A group of disks presented to clients as one or more large virtual disks, with accesses coordinated among multiple disks concurrently to increase performance, reliability, or both.
RAM
Random Access Memory
A type of computer memory that can be accessed randomly; that is, any byte of memory can be accessed without touching the preceding bytes.
Range Based Address Resolution
See RBAR
RAO
Revenue Accounting Office
RAS
REST Application Server
RAR
Re-Authorization Request (Gx or Rx Diameter command)
RAT
Radio Access Technology
RBAR
Range Based Address Resolution
A DSR enhanced routing application which allows you to route Diameter end-to-end transactions based on Application ID, Command Code, Routing Entity Type, and Routing Entity address ranges.
RBOC
Regional Bell Operating Company
RC
Relative Cost
Restriction Criteria
Resource Controller
RCA
Root Cause Analysis
RCC
Remote Congestion Control
RC Group
Relative Cost Group
A group of entities within a MAP or MRN group that have the same relative cost.
RCL
RADIUS Connection Layer
RCP
Routeset Prohibited Test (Msg) (ANSI)
RCR
Routeset Cluster Restricted Test (Msg)
RCT
Route Congestion Test
Routeset Congestion Test (Msg)
RCx
A Signaling-Route-Set-Test for either a prohibited or restricted cluster network management message.
RD
Receive Data
Removable Disk
RD-IWF
RADIUS-Diameter Interworking Function
RDR
Resource Data Record
Reachable Peer
Represents a group of peers that are reachable by the node sending the Routing- Update-Request (RUR).
Realm
A fundamental element in Diameter is the realm, which is loosely referred to as domain. Realm IDs are owned by service providers and are used by Diameter nodes for message routing.
Recovered Timing Mode
This timing mode on the HC-MIM applies to Channel Bridging. The port with this mode selected uses the other member of the bridged-pair as a clock source, ensuring that both ports are using the same clock for line stability.
Receiver Window
An SCTP variable that a data sender uses to store the most recently calculated receiver window of its peer, in number of bytes. This gives the sender an indication of the space available in the receiver's inbound buffer.
REDIRECT
A function of the gateway screening commands that specifies whether messages that pass gateway screening are diverted, by the gateway screening redirect function, from its original destination to another destination for further processing.
Redirect Agent
A Diameter Redirect Agent refers clients to servers and allows them to communicate directly.
Redirect Server
A centralized database that maps subscriber numbers to routing numbers or domain names.
Redundant Rules
Rules are redundant if the PCRF Sub-Pools are the same and a request matching the more specific rule always matches the less specific rule. Redundancy does not include the default rule. The PCRF Sub-Pool Selection Rules GUI does not prevent creation of redundant rules since the PCRF Sub-Pool is the same, leaving no ambiguity.
Reference Implementation
In the software development process, a reference implementation is the standard from which all other implementations and corresponding customizations are derived.
REL
Release
Relay Agent
Diameter agent that forwards requests and responses to other Diameter nodes based on routing-related AVPs (such as Destination-Realm) and routing configuration. Because relays do not make policy decisions, they do not examine or alter non-routing AVPs. As a result, relays never originate messages, do not need to understand the semantics of messages or non-routing AVPs, and are capable of handling any Diameter application or message type.
Relay Identity
Identifies the TWAN relay identity type as either IPv4/IPv6 or FQDN.
Remote Authentication Dial-In User Service
See RADIUS
Remote BUSY Congestion
A DSR feature that limits the routing of Request messages to a Diameter connection when the Peer Node is rejecting Diameter transactions on that Diameter connection due to a BUSY condition.
Remote Link Element (RLE)
See RLE
Remote Loopback Point
A segment of a signaling link that is tested with the link fault sectionalization feature.
Remote MTP3 User
See RMU
Remote Signaling Point
See RSP
Remote Switched Virtual Circuit (SVCR)
See SVCR
Removable Cartridge
MO cartridge used in the drive on the legacy MDAL card.
Removable Cartridge Drive
Media drive for removable MO cartridges on the legacy MDAL card.
Removable Drive
Flash memory “thumb” drive used in the latched USB port on an E5-MCAP card for installation and backup of customer data.
Removable Media
Flash memory or thumb drives used in the latched USB port on an E5-MCAP card for installation and backup of customer data.
REPL
Replication
Request Topology Hiding
A Topology Hiding trigger point that identifies a location within Diameter routing where topology-related information in a Request message is hidden or obscured based upon a set of Topology Hiding rules.
Request Topology Restoral
A Topology Hiding trigger point that identifies a location within Diameter routing where topology-related information in a Request message is restored based upon a set of Topology Hiding rules.
Reroute on Answer
A set of conditions that control message rerouting to peer nodes based on the contents of an answer message.
RES
Resume
Resource Domain
A list of Server Groups that support a logical resource.
Response Method Messages
Messages that include TFP/TCP.
REST
Representational State Transfer
Used by the provisioning system to send HTTP requests (GET, POST, PUT) to manipulate and query data in the provisioning database.
Restricted
The network management state of a route, link set, or signaling link that is not operating properly and cannot carry all of its traffic. This condition only allows the highest priority messages to sent to the database entity first, and if space allows, followed by the other traffic. Traffic that cannot be sent on the restricted database entity must be rerouted or the traffic is discarded.
Rf-Interface
Protocol that records data for off-line charging.
RFC
Request for Comment
RFCs are standards-track documents, which are official specifications of the Internet protocol suite defined by the Internet Engineering Task Force (IETF) and its steering group the IESG.
RFF
Request for Feature
RFI
Request for Information
RFP
Request for Proposal
RFQ
Request for Quote
RG
Report Generator
RGB
Red, Green, Blue
RH
Relative Humidity
RI
Routing Indicator
RIDB
Ranged Indexed Database
RIP
Routing Information Protocol
RIPE
Reseaux IP European Network Coordination Centre
RJ
Registered Jack
RKS
Record Keeping Server
RLE
Remote Link Element
The hardware elements of the signaling link (for example, data ports in channel banks, link interfaces in STPs that are assigned to remote loopback points for the link fault sectionalization feature.
RLG
Release guard signal - TUP message
RLI
Remote Link Interface
RLSD
Released
RMA
Return Material Authorization
RMCP
Remote Management Control Protocol
PMAC communicates with the shelf manager via RMCP on a management VLAN. RMCP encapsulates IPMI commands within UDP packets so that they can be sent over Ethernet.
RMS
RAM Management Services
Rack Mount Server
Revenue Management Suite. See Oracle Communications Revenue Management Suite Reference Implementation.
RMT APPL
Remote Application
RMTP
Reliable Multicast Transport Protocol
RMTP LN
RMTP Leaf Node
RMTP SD
RMTP Sender Node
RMTP TN
RMTP Top Node
RMU
Remote MTP3 User
Represents a remote SCCP subsystem to which the Signaling Network Interface forwards signaling. When a message is forwarded from an MSC to an HLR, an RMU must be configured for the subsystem on the HLR.
RN
Routing Number
The number provided by the Freephone Service Provider (FSP) to the Access Service Provider (ASP) to enable a pre-determined routing of traffic to a specific network/ carrier/customer.
RNIDN
Routing Number - International DN
RNNDN
Routing Number - National DN
RNSDN
Routing Number - Subscriber DN
RNSP
Routing Number Service Provider
ROI
Return on Investment
The amount of profit an organization generates.
Rollover
A quota convention that allows a subscriber to carry forward unused units from one billing cycle to another.
ROM
Read Only Memory
ROP
Large Geographic Area (Groups of CNLs)
ROS
Routing Option Set
ROSE
Remote Operations Service Element
Route
A signaling path from an LSP to an RSP using a specified Link Set.
Route Group
A set of peers that have the same priority within a route list.
Route List
A prioritized set of Route Groups used for routing Diameter Request messages. Only one route group within a route list is used for routing messages at any point in time, and is called the active route group. A route list is selected by a peer routing rule for routing a Diameter Request message to an upstream peer.
Route Set
A group of routes, no more than six, carrying traffic to the same destination.
Routing Entity
A User Identity or an IP Address associated with the User Equipment (IPv4 or IPv6 address).
Routing Key
A set of SS7 parameter and parameter values that uniquely define the range of signaling traffic to be handled by a particular Application Server. For example, where all traffic directed to an SS7 DPC, OPC, and ISUP CIC_range(s), or SCCP SSN is to be sent to a particular Application Server, that SS7 data defines the associated Routing Key.
Routing Option Set
A set of user-configurable routing options that a can be associated with a Diameter transaction based on the downstream Peer Node from which the transaction was received or the Diameter Application ID in the ingress transaction.
RR
Resource Record
An entry into the DNS database. Depending on their type (for example, A, SRV, and so on), RRs provide a different set of parameters that characterize a certain DNS name.
RRBE
Request_Report_BCM_Event AIN Message
RS
Requirement Specification
Redirect Server
RSA
Regional Service Area
Rural Statistical Areas
Reset Answer
Rivest-Shamir-Adleman. Algorithm for public-key encryption developed by Ron Rivest, Adi Shamir, and Leonard Adleman.
RSC
Reset Circuit
Reset Confirmation
RSCT
Route-set-congestion-test (message)
An MTP3 management message.
RSET
Routeset
RSM
Remote Switching Module
RSP
Route Set Test. Prohibited message.
Remote Signaling Point. Represents an SS7 network node (point code) that signaling must be sent to. An RSP has an SS7 domain (ANSI, ITUI, ITUN), a point code, and an optional Adjacent Server Group.
A logical element that represents a unique point code within a particular SS7 domain with which the SS7 application's Local Signaling Point interacts.
RSR
Reset Request
Route Set Test. Restricted message.
RST
Route Set Test
Route Set Prohibited Test (Msg). Signaling-route-set-test signal for prohibited destination.
RSTP
Rapid Spanning Tree Protocol
Adding redundant links to a network increases availability; unfortunately, it can also spawn network traffic loops. Traffic loops can overburden hosts and result in unpredictable network performance. RSTP addresses redundancy requirements, but at the same time, it works to detect and prevent traffic loops that may develop in the network.
RTAC
Route Transfer Allowed Control
RTC
Real Time Clock
RTCP
Real-time Transport Control Protocol
Provides out-of-band control information for an RTP flow.
RTDB
Real Time Database
RTE
Route
RTH
Request Topology Hiding
A Topology Hiding trigger point that identifies a location within Diameter routing where topology-related information in a Request message is hidden or obscured based upon a set of Topology Hiding rules.
RTM
Rear Transition Module
RTMs are cards that plug directly to the front board from the rear of an ATCA chassis, providing rear I/O independent of the backplane.
RTO
Retransmission Timeout
RTOS
Real Time Operating System
RTP
Real-time Transport Protocol
DSR Mediation Request Trigger Point (RTP)
RTP1
Mediation trigger point located immediately after the Diameter Routing Function finds a valid PTR associated with the ingress Answer message.
RTP10
Mediation trigger point located immediately prior to queuing an Answer message to the Diameter Transport Function.
RTPC
Route Transfer Prohibit Control
RTP Relay
Real-time transport protocol relay
RTR
Router. Routes all types of SMS traffic.
Request Topology Restoral
RTRC
Route Transfer Restricted Control (SS7)
RTS
Ready to Send
Request to Send
RTT
Ready to Test
Round-Trip Time
RU
Rack Unit
One rack unit (1RU) is 44.45 mm (1.75 in) high.
RUA
Routing Update Answer
DRMA protocol messages sent between Policy Management systems.
Rule
An association between a Filter and an Action Set.
Rule Condition
Each PCRF Sub-Pool Selection Rule consists of a condition made up of a parameter (Origin-Host), an operator, and a value. An example Condition might look like: Origin-Host Equals pcef015.tklc.com.
Rule Matching
Rule matching is the process of finding the best match among the configured PCRF Sub-Pool Selection Rules for a given binding capable session initiation request. Rule matching occurs on the DA-MP that processes the binding capable session initiation request.
Rule Priority
Each PCRF Sub-Pool Selection Rule has a priority value from 1 to 99, with 1 being the highest priority. The Rule Priority allows the user to give preference to one rule over another, regardless of which rule might be the “best match.”
RUR
Routing Update Request
DRMA protocol messages sent between Policy Management systems.
RWND
Receiver Window
RX
Receive
The Diameter interface between a PCRF and an Application function (AF) such as a PCSCF, as defined by 3GPP. The Rx interface uses AAR/AAA, RAR/RAA, STR/STA, and ASR/ASA messages and is binding dependent.