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nn48111-111_09.02_10.3_experius_as_product_description

nn48111-111_09.02_10.3_experius_as_product_description

146 Components and

146 Components and configurationsFinally, the SM maintains an alarm summary of all the components in thenetwork. This summary, accessible via the OMI API, contains the counts ofcritical, major and minor alarms by alarm family.The following is the full list of modules the SM runs:• System Manager (SM)• Fault and Provisioning Manager (FPM)• Database (DB)• Provisioning Manager (PROV)• Accounting Manager (AM)• Personal Agent Web Portal (PA)There is only one (redundant) SM in an AS system, and it is the firstcomponent brought into service. The SM maintains connectivity to allrunning components in the network in order to enable managementactivities. In the event of a failure, the backup SM application automaticallydetects failure of the active SM and will failover, taking control of the SM’sservice IP address. The default engineering recommendation is to installthe SM role on a dedicated high-availability server pair. The SM can beinstalled in a L2 Geo-Redundancy configuration with one half of the SMserver pair located at different locations.Session Manager (SESM)The primary purpose of the SESM is to manage SIP sessions and providemultimedia network based services. The SESM interacts with manydevices (hard/soft clients, SBCs, PSTN gateways, and SIP PBXs) toprovide these services.The default engineering recommendation is to install the SESM role on adedicated high-availability server pair. The SESM can be installed in a L2Geo-Redundancy configuration with one half of the SM server pair locatedat different locations.The SESM is the service execution engine that provides the followingsoftware functionality:• SIP Proxy Server• Back-to-Back User Agent (B2BUA)• SIP Registrar• Call Processing Language (CPL) Interpreter• Presence Engine15 August 2014 EXPERiUS Application Server NN48111-111 09.02Copyright © 2010-2014 GENBAND. All Rights Reserved.

Core components 147• IM Server and address resolution & routing capabilities• VoIP signaling and UC service processing servicesThe SESM relies on subscriber, device, and domain profile data to enablethe execution of services for active sessions, and the SESM may alsoupdate subscriber data as a result of service processing. In the course ofservice processing, the SESM will generate associated telemetry (faults,alarms, performance statistics, and accounting information).Scalability is achieved by deploying multiple SESM pairs, and loadbalancing of subscribers across active SESMs is controlled throughprovisioning. When deployed in a C20-EXPERiUS configuration, the SESMcommunicates with the C20 Gateway Controller via a proprietary GatewayControl Protocol (GCP) to manage and/or direct calls.Fault and Performance Module (FPM)The FPM handles fault and performance functions for EXPERiUScomponents, media servers and gateways. All operation, administration,and maintenance (OAM) information is reported to the FPM and displayedon the SM Console. Alarms persist as a visual indication of a faultcondition until the fault condition is resolved – then the alarm clears. TheSM can operate as an FPM in small configurations or there can be singleor multiple, separate standalone FPMs; The scale of the solution dictateshow many FPMs are required.Raw log streams are formatted into SCC2, STD, or MCP format, stored ondisk, and forwarded to all configured OSS clients. In addition, alarms areformatted into SNMP traps (using the GENBAND Reliable MIB) andforwarded to configured SNMP agents. Raw OM streams are formattedinto CSV format, stored on disk, and forwarded to all configured OSSclients.See “OAMP strategies and fundamentals” (page 187) for more informationabout Performance and Fault Management fundamentals on the AS.Database Manager (DB)The DB is comprised of the Oracle database software and the DatabaseManager software. Some network components access the Oracledatabase to provide storage and retrieval for subscriber locationinformation, registration status based on the information received with SIPclient registration, routing and translation entries, system configurationdata, subscriber address book and subscriber call logs.The DBs utilize a replicated Oracle Database to maintain redundant copiesof the system data—there is a Primary DB and a Standby DB.Configuration data (network topology, etc.) and provisioning (domain,subscriber, etc.) data is all stored in this replicated Oracle database. The15 August 2014 Product Description NN48111-111 09.02Copyright © 2010-2014 GENBAND. All Rights Reserved.

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