DCEngine Services with FlowEngine

Enhancing DCEngine with SDN-enabled intelligent traffic distribution

Base models of DCEngine racks come pre-configured with high capacity Top-of-Rack (ToR) switches, which can couple service resources with network topology. This dependency imposes service delivery constraints, potentially inhibiting the network operator from optimally utilizing service resources, while limiting scale, capacity and redundancy.

For more advanced SDN-enabled traffic distribution, DCEngine racks can instead be equipped with Radisys FlowEngine. With FlowEngine, service providers are aware of both network topology and available service policies through OpenFlow interfaces or extensible SDN APIs, making service delivery an orchestration of network elements rather than a re-configuration of the network’s topology.

FlowEngine also performs multi-faceted Service Function Chaining (SFC) roles including flow and service classification, service function forwarding (SFF) and SF Proxy function from an ordered list of required network services or service functions for a set of flows.  SDN extends full network visibility to FlowEngine to incorporate specific sequencing constraints (on-demand) determined by centralized set of policy rules that must be applied to flows selected as a result of dynamic network conditions.  And it maintains flow affinity by stitching services within/across networks, creating a stateful service chain per subscriber.

Benefits

  • Policy-based control of SFC sequencing for each subscriber flow
  • Flow affinity
  • Millions of OpenFlow table entries
  • Millions of subscriber match tables
  • Millions of IP forwarding entries

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