Dynamic MPLS Cloud Integration via MP-BGP Signaling
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Solution Overview
Problem
Current systems for integrating cloud networks with MPLS networks face challenges in dynamic traffic routing due to the need for pre-provisioned VRFs and edge router configurations, limiting on-demand service availability and network flexibility.
Innovation Solution
Establishing a MP-BGP session between the MPLS network and the cloud network, exchanging control plane updates that map MPLS labels to extension headers, and processing paths to enable dynamic routing of data packets without the need for pre-provisioned VRFs, allowing for seamless integration and dynamic VM relocation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If VRFs are pre-provisioned on edge routers to integrate cloud networks with MPLS networks, then network connectivity is established, but network flexibility and dynamic service addition are reduced
Solution Approach 1:
The patent implements dynamic VRF provisioning by allowing VRFs to be created on-demand through MP-BGP signaling rather than pre-provisioning. The system dynamically establishes VRF contexts when services are requested, enabling flexible service addition without manual configuration changes.
Solution Approach 2:
The patent performs preliminary VRF provisioning through automated MP-BGP signaling before actual service traffic flows. The system pre-establishes the necessary routing contexts and label mappings dynamically, so when service traffic arrives, the VRF infrastructure is already in place and ready to handle it.
2Adaptability or versatility
If edge routers process incoming BGP updates and data packets to reformat them into MPLS format, then cloud network integration is achieved, but processing complexity and configuration requirements increase
Solution Approach 1:
The patent introduces MP-BGP as an intermediary signaling mechanism that automates the coordination between cloud networks and MPLS infrastructure. Instead of complex manual configuration, MP-BGP messages serve as intermediaries that automatically establish VRF contexts, label mappings, and routing relationships, simplifying edge router operations.
Solution Approach 2:
The system enables self-service automation where the network infrastructure automatically provisions itself through MP-BGP signaling. Edge routers automatically create VRF contexts, establish label mappings, and configure routing relationships based on received BGP updates, eliminating the need for manual intervention and reducing configuration complexity.
3Stability of the object's composition
If VRF connections are provisioned in advance to ensure network connectivity, then routing stability is maintained, but on-demand service availability is eliminated
Solution Approach 1:
The patent performs preliminary VRF provisioning through automated MP-BGP signaling before actual service traffic flows. The system pre-establishes the necessary routing contexts and label mappings dynamically, so when service traffic arrives, the VRF infrastructure is already in place and ready to handle it, eliminating service provisioning delays.
Data Source
AI summary
A method includes sending a request for services from a Virtual Machine (VM) in an external cloud network to a provider multi-protocol label switching (MPLS) network, establishing a multi-protocol border gateway protocol (MP-BGP) session between the provider MPLS network and the external cloud network, exchanging control plane updates between the provider MPLS network and the cloud network and processing paths between the provider MPLS network and the remote VM.