Cloud Resource Manager Reduces CSA-PE Control-Plane Burden
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Solution Overview
Problem
In cloud-based network environments, the increasing number of nodes and users leads to an overburdened control-plane for CSA-PE routers, which affects data handling capacity and user experience due to the need for routers to manage and propagate numerous route addresses.
Innovation Solution
Implementing a cloud resource manager that identifies and selects candidate transit routers to handle control-plane responsibilities, generating a default route address and using a modified VRF to facilitate communication routing, thereby reducing the burden on CSA-PEs and preserving data handling capacity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If CSA-PE routers manage and propagate numerous route addresses to handle increasing number of nodes and users, then network connectivity and communication capability are improved, but control-plane burden increases and data handling capacity deteriorates
Solution Approach 1:
The patent introduces a cloud resource manager as an intermediary component that assumes control-plane responsibilities. This manager receives routing requests from CSA-PE routers, determines appropriate transit routers, and propagates routes without requiring CSA-PE routers to directly manage numerous route addresses. The cloud resource manager acts as a mediator that centralizes control-plane functions, thereby reducing the complexity burden on individual CSA-PE routers while maintaining network connectivity.
Solution Approach 2:
The patent segments control-plane functions from data-plane functions by introducing a separate cloud resource manager. Instead of having CSA-PE routers handle both routing decisions and data forwarding, the system divides responsibilities: the cloud resource manager handles control-plane routing decisions, while CSA-PE routers focus on data-plane data forwarding. This segmentation allows each component to optimize its specific function and reduces the overall system complexity.
2Adaptability or versatility
If CSA-PE routers propagate numerous route addresses to maintain communication with all nodes, then network coverage is improved, but data handling capacity deteriorates
Solution Approach 1:
The cloud resource manager serves as an intermediary that handles route propagation to transit routers. CSA-PE routers no longer need to directly propagate numerous route addresses to maintain network coverage. Instead, they forward data to the cloud resource manager, which manages the routing information and ensures network coverage is maintained without burdening the CSA-PE routers with extensive routing table maintenance.
Solution Approach 2:
The patent extracts control-plane route propagation responsibilities from CSA-PE routers and places them in the cloud resource manager. By taking out these functions, the system allows CSA-PE routers to focus exclusively on data handling capacity while the cloud resource manager maintains network coverage through centralized route management and propagation to appropriate transit routers.
3Adaptability or versatility
If routers manage and propagate numerous route addresses to support more users, then service capability is improved, but control-plane processing resources are consumed
Solution Approach 1:
The cloud resource manager acts as an intermediary that centralizes control-plane processing. Instead of individual CSA-PE routers consuming processing resources to manage and propagate numerous route addresses, the system uses a centralized cloud resource manager to handle these computationally intensive routing tasks. This intermediary approach maintains service capability for supporting more users while significantly reducing the processing resource consumption at the router level.
Data Source
AI summary
Methods, systems and apparatus are disclosed to route cloud-based service communications. An example method includes generating a default route address associated with a selected one of a plurality of candidate transit routers in response to an identification of a virtual private network addition to the cloud-computing network, and assigning the default route address to a cloud service access router to direct a routing request from the cloud service access router to the selected one of the candidate transit routers via the default route address.