VMware Smart Assurance Optical Transport Management Suitearchitecture

VMware Smart Assurance Optical Transport Management Suite Architecture shows how the Optical Transport Manager relates to the Service Assurance Manager, adapters, and the optical network.

Note:

VMware Smart Assurance Optical Transport Manager Architecture does not show the interaction among the OTM servers and the domains. It does not show the XD Manager OTM to IPserver or the WDM-NG domain manager.Data flow in VMware Smart Assurance Optical Transport Management Suite with WDM-NG domain manager, EMC M&R, and the SolutionPack for Optical Wavelength Services installed shows the architecture when EMC M&R and the WDM-NG domain manager are installed with the SolutionPack for Optical Wavelength Services.

The components of the Optical Transport Management functionality are listed in Components of the Optical Transport Manager. Components and functionality are discussed in more detail in the following sections.

Table 1. Components of the Optical Transport Manager
Category	Component	Description
Optical Transport Manager	Optical Transport Managerfor SONET/SDH Topology Server	Receives topology from Inventory Adapters. Maintains repository, monitors status and events for high-order SONET and SDH components in the underlying network. Communicates with PDH and WDM Topology Servers for cross-domain root-cause analysis. Receives real-time events from Device and Event Adapters and passes them to SONET/ SDH Analysis Server.
	Optical Transport Managerfor PDH Topology Server	Receives topology from Inventory Adapters. Maintains repository, monitors status and events for low-order SONET and SDH components in the underlying network. Communicates with SONET/SDH Topology Server for cross-domain root-cause analysis. Receives real-time events from Device and Event Adapters and passes them to PDH Analysis Server.
	Optical Transport Managerfor WDM Topology Server	Receives topology from Inventory Adapters. Maintains repository, monitors status and events for WDM components in the underlying network. Communicates with SONET/SDH Topology Server for cross-domain root-cause analysis. Receives real-time events from Device and Event Adapters and passes them to WDM Analysis Server.
	Optical Transport Manager for WDM-NG Server	Receives topology and events collected from TMF 864-compliant VMware systems. Requires installation of the EMC M&R platform , the SolutionPack for Optical Wavelength Services ,and the SolutionPack for VMware Smart Assurance. Passes notifications to the SolutionPack for VMware Smart Assurance for display in the EMC M&R user interface. Note: The SolutionPack for Optical Wavelength Services Summary Sheetarticle provides more information.
	Optical Transport Managerfor SONET/ SDH Analysis Server	Contain high-order SONET/SDH topology information, objects, their attributes, and relationships needed for analysis. Receives events and alarms from SONET/SDH Topology Server. Responsible for carrying out root-cause analysis within the SONET/SDH domain as well as across different OTM domains. Communicates with SAM for display.
	Optical Transport Managerfor PDH Analysis Server	Contain low-order SONET/SDH topology information, objects, their attributes, and relationships needed for analysis. Receives events and alarms from PDH Topology Server. Responsible for carrying out root-cause analysis within the PDH domain as well as across different OTM domains. Communicates with SAM for display.
	Optical Transport Managerfor WDM Analysis Server	Contain WDM topology information, objects, their attributes, and relationships needed for analysis. Receives events and alarms from WDM Topology Server. Responsible for carrying out root-cause analysis within the WDM domain as well as across different OTM domains. Communicates with SAM for display.
Cross-Domain Correlation	XD Manager OTM to IPAnalysis Server	Topology contains a subset of objects from OTM and IP managed domains. Cross-correlates events between managed optical domain and the IP network. Performs root-cause and impact analysis across domains.
Adapters (see note below)	Inventory Adapter	Retrieves physical and logical topology information from an element management system (EMS) in the Operations Support System (OSS) environment or from a database or flat file. May extract data from multiple inventory systems, each with its own adapter, to derive a complete end-to-end model.
	Event Adapter	Retrieves alarm data from a system in the OSS environment. May provide some level of normalization of alarms among equipment from different vendors. Several event adapters may be required in order to gather all of the alarms from the network.
	Device Adapter	Communicates directly with specified devices (as opposed to communicating through an EMS) to retrieve topology and alarm information. Usually, a device adapter supports a small range of models from one vendor.
Consolidation and Presentation	Global Manager ( Service Assurance Manager)	The Global Managerprovides a consolidation function for root-cause and impact notifications that are created as a result of analysis by underlying Domain Managers. A third-party system can use the Global Manageras a single integration point to retrieve all notifications in a set of distributed Domain Managers that may be managing different geographical or technology domains.
Consolidation and Presentation	Global Console	The Global Console is the graphical user interface that provides users with the ability to navigate the topology of physical and logical entities in the network. View notifications from underlying managers using filters that match users’ roles.

Note:

The adapters deployed depend on the specific sources of topology and alarm data present in the environment. These can be a combination of element managers, OSSs deployed, and the devices themselves.

Figure 1-2: Data flow in VMware Smart Assurance Optical Transport Management Suite with WDM-NG domain manager, EMC M&R, and the SolutionPack for Optical Wavelength Services installed shows the flow of data when the WDM-NG domain manager is installed. This OTM manager can process events coming from TMF 864-compliant EMS systems by using the EMC M&R platform with two SolutionPacks installed (SolutionPack for Optical Wavelength Services and the SolutionPack for VMware Smart Assurance)

Data flows in VMware Smart Assurance Optical Transport Managerwith WDM, Sonet/SDH, and PDHshows the high-level view of the flow of data among the non-WDM-NG components when EMC M&R is not deployed in your network.

Figure 2. Data flow in VMware Smart Assurance Optical Transport Management Suitewith WDM-NG domain manager, EMC M&R, and the SolutionPack for Optical Wavelength Services installed.

Figure 3. Data flows in VMware Smart Assurance Optical Transport Management Suitewith WDM, Sonet/SDH, and PDH

There are three types of adapters.

Inventory Adapters gather topology data from OSSs and/or from network elements.
Event Adapters gather alarm data from OSSs and/or from network elements.
Device Adapters (not shown in Data flows in VMware Smart Assurance Optical Transport Manager with WDM, Sonet/SDH, and PDH) may supply data directly to one or more of the Optical Transport ManagerDomain Manager Topology Servers.

OTM uses SDXA (Simple Data Exchange Adaptor) for topology transfer from a Topology Server to the Analysis Server within the same OTM domain.

The Optical Transport Managerfor SONET/SDH shares some topology and alarm data with the Optical Transport Managerfor WDM and the Optical Transport Manager for PDH in order to enable them to perform cross-domain correlation.

Information is propagated between Topology Servers of different OTM domains (for example, from a SONET/SDH Topology server to a PDH Topology server) using Remote Accessor Instrumentation to perform cross-domain root-cause analysis.

Each Analysis Server sends notifications to the Global Manager, which acts as a consolidation point. The Global Console and other customer operations support systems retrieve notifications from the Global Manager and topology from the Analysis Servers.