Cross domain correlation: often touted, never delivered – until now.
As service providers continue to build IP-based networks on top of transport (ie Layer 1) networks, customers have searched for “cross domain correlation”. The nirvana was to have one topological view of Layers 1, 2, and 3 such that one Network Operations Center (NOC) operator could actually have a common view of the transport, switching and routing layers all on one screen. I assume anyone reading this blog will understand why. Over the last decade, I have been in multiple work centers where the current cross-domain correlation capability is achieved via swivel chair, or a conference call between the transport and IP work centers. Several vendors have tried to address this problem – with minimal success.
For example, I know of a service provider that is providing IPTV over copper to the home, using fiber as the backbone. This service offering is complex and utilizes key vendors who rely on Element Management Systems (EMSs) to front-end the edge and core networks. The EMS management approach is common in legacy telco networks. This provider selected a vendor who historically has offered excellent Root Cause capabilities on a true IP network, where access to each device is the best approach in building topology views and determining root cause. However, the solution struggles with the EMS/layer 1 world, as it frankly was built and optimized for IP device management. Having the EMS – yet another software tool to integrate – between the NOC and the end customer creates multiple challenges. The solution was bought because it would deliver the nirvana of cross domain correlation. To be clear, the solution that was sold worked, though with heavy support from all parties involved. The set up is awkward, and impossible to scale. (The alternative approach was to use a combination Manager of Manager (MOM) product with another IP-centric solution. The problem here was simple—too much integration, no common view of the topology, no common method of correlation, in effect no solution – hence it was not selected). This scenario was from five years ago, neither solution has changed over the last five years. So what is different about Monolith?
Monolith can provide a common topological view of layers 1, 2 and 3. Critically, it provides a common view of event AND performance metrics for layer 1, 2, and 3 devices. It can adapt and parse data from an EMS and import it in a NORMALIZED fashion into the topology view. This topology view then can have a hierarchical correlation capability, applied using Monolith’s Hierarchical Storage Engine(HSE) capability which will provide Probable Root Cause Analysis across not only layers 1, 2, and 3 but across application topology as well. For instance, IPTV can be stitched into the topology to provide a true Layer 1 through 7 view.
Bottom line, the Cross Domain Correlation capability that was touted five years ago, and which is now effectively dead from the leading vendors, is provided by Monolith. Not only can we provide the common topology, we can then extend event, topology, and performance data into true end-to-end Service Management views, this is true cross domain management. Monolith does this by normalizing event, topology, and performance data. As I have said in earlier blogs, Monolith can leverage, enhance, or displace existing infrastructure management tools. The end goal was cross domain correlation, which we can do today with our product. Virtually every service provider—cable, wireline, broadband, MSP, wireless provider— needs to correlate the transport layer to the switching/IP layer, and we can do it now. The Holy Grail is Service Level Management capability, where a customer—internal or external as well as the NOC— can see the overall health of a service, drill down to see the Probable Root Cause, and even remediate the problem.
To learn more check out our white paper on Normalization, or read our datasheets on Service Level Management and Correlation.
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Correlation, Transport, Layer 1, Layer 2, Layer 3, Cross Domain, IPTV, FTTH, EMS, Element Management System, Fiber to the Home, Topology, Monolith Software, End-to-end management, MSP, Broadband, SLM, Service Level Management