Corsa Network Edge Router Offload
About Corsa Edge Router Offload
Historically network architectures have focused on aggregating multiple customer connections effectively, and transporting the traffic upstream through the core of the network to content and service providers. The core links have always been very costly, which provided the incentive for the operators to try to keep as much traffic as possible confined to the network point of presence or a network exchange point. But Content Delivery Networks, Cloud Service Providers, and the proliferation of direct peering have shifted the traffic patterns to be more East-West, taking customer traffic directly to peer or content providers within the same location. What used to be 50% of traffic is now 75% that never has to go over the backbone. This is resulting in edge routers being overburdened with traffic that is not destined upstream to the core network.
At the same time, network operators face the challenge of introducing more dynamic on-demand capabilities to their networks in order to enable easier software and application integration. They face the need to evolve their networks to be more dynamic, with capabilities for software integration, DevOps and SDN, while transporting large volumes of data between their customers, peers and content providers. They continually face challenges trying to balance those needs.
Corsa’s Edge Router Offload solution allows network operators to transparently introduce an SDN capable platform without modifying their routing topology or requiring a forklift upgrade. They add the capability of switching customer to peer (East-West) traffic directly without forwarding it up to the Edge Router. This type of offload allows service providers to manage their CAPEX spend more efficiently by augmenting the edge router capacity without further investment in big chassis and software licensing.
Introducing Corsa’s SDN Switching and Routing platform as a router enhancement also adds new capabilities for SDN based forwarding without any changes to the current routing infrastructure. This allows network operators to evolve their networks seamlessly, without having to “fork lift” current infrastructure to replace it with new SDN capable equipment. This seamless evolution allows them to gradually build and introduce new innovative services, such as bandwidth on demand, or application specific routing. This creates additional value for their end customers, and new service revenue streams for their organizations.
These new services are enabled by open programmatic SDN control by the orchestration layer, which can manage them in a fully automated way in concert with existing OSS/BSS systems.
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