Deep Application Flow Analysis - Qpath

NetBrain provides the industry’s deepest application flow analysis capability. Given the source and destination address of any application, NetBrain can map out both the live and historical application paths, with all the dependencies clearly illustrated in the map. The technologies supported include routing, switching, NAT, ACL, MPLS, PBR, Load Balancing, QoS, etc. and can be dynamically extended for newer network technologies.

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Map the Path between Two Endpoints

NetBrain's path mapping engine provides deep visualization into the traffic flow between a source and destination address by analyzing traffic forwarding decisions at each hop, covering technologies from Layer-1 through layer-7. The analysis can be executed across a live network, or across previously collected data to provide a historical path view.

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Analyze Application Traffic at the Layer 4 Port Level

For modern networks, it's not enough to analyze application traffic at the IP level because ACL, QoS or NAT technology can impact the application flow at the port level. For example, a server may be accessible through a web browser (operated at port 80/443), but telnet traffic (at port 23) could be denied.

Access Lists can be instantly analyzed along the path to provide port-level traffic analysis:

NetBrain can also decode NAT translations along the path and properly group traffic paths in the forward and return direction:

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Policy-Based Routing (PBR)

In addition to dynamic routing, some networks may leverage PBR (policy-based routing) to route application traffic based on advanced metrics. NetBrain understands PBR logic and can map out the path across PBR-enabled network hops:

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Load Balancing & Address Translation

In a server load balancing setup, a Virtual IP, which represents many real servers behind a load balancer, is provided as the target for inbound traffic. A load balancer will dynamically route traffic to one of the real servers based on pre-defined criteria such as server-side load. NetBrain's path technology can decode this logic and provide the end-to-end traffic path analysis, spanning from a real client to a real server.

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Analyze Traffic Flow across MPLS Technology

Modern service provider networks often include MPLS at their core. Using NetBrain, traffic flow across a single MPLS domain or multiple MPLS domains can be analyzed side-by-side with traditional routing and switching technology. The end result is that users don't have to dive into IP, MAC, and MPLS tables to get full visibility into the end-to-end path.

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Traffic Path across VRF Lite

NetBrain calculates the path across MPLS Lite based on LFIB (Label Forwarding Information Base) and maps between CE and PE devices.

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Traffic Path across MPLS Cloud

Enterprise networks often use MPLS clouds (MPLS forwarding provided by the service provider). NetBrain supports end-to-end traffic path discovery across the cloud.

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Extend Path Analysis Logic

Users can easily modify and enhance NetBrain's built-in path analysis logic in a visual programming environment to cover new network technologies. For example, an engineer may extend path analysis logic to cover the impact of wan optimization to application flow.

This customization is achieved through NetBrain's customizable automation technology.

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