Overlay Routing Sync With Underlay Paths for 5G Forwarding
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Solution Overview
Problem
In 5G networks, the overlay and underlay networks operate independently, leading to inefficient resource utilization and suboptimal routing, which hinders the provision of fast and reliable network services due to packets often choosing the same path or gateway, thereby limiting network capacity and connectivity.
Innovation Solution
A route optimization method that involves generating an underlay routing table from probe packets containing host and interface information, synchronizing this table to an overlay network to create an overlay routing table, and using this table to determine optimal paths for service packets, thereby optimizing network resource utilization and ensuring reliable and fast forwarding.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If overlay network and underlay network operate independently with separate routing, then network flexibility and virtualization are improved, but network resource utilization deteriorates due to packets choosing the same path or gateway
Solution Approach 1:
The patent merges overlay routing and underlay routing into a unified routing system. The network device maintains both overlay routing information (for virtual network flexibility) and underlay routing information (for physical network efficiency), and intelligently selects or combines them to determine optimal packet forwarding paths, thus achieving both flexibility and resource utilization
Solution Approach 2:
The patent introduces a routing selection mechanism that acts as an intermediary between overlay and underlay networks. This mechanism receives routing requests, evaluates both overlay and underlay routing options, and selects the optimal path based on current network conditions, thereby coordinating the two independent routing systems to work together efficiently
2Ease of operation
If packets from different nodes choose the same path or gateway, then routing simplicity is maintained, but network service reliability deteriorates due to inability to provide fast and reliable services
Solution Approach 1:
The patent implements dynamic routing where the system continuously monitors network conditions and adjusts packet paths in real-time. When congestion or failures are detected on commonly used paths, the routing mechanism dynamically selects alternative paths, ensuring reliable service delivery while maintaining operational simplicity through automated adaptation
3Productivity
If overlay network uses overlay technology for virtualization, then network provisioning speed is improved, but path optimization capability deteriorates due to lack of visibility into underlay network conditions
Solution Approach 1:
The patent performs preliminary actions by pre-collecting and caching underlay routing information and network topology data. This allows the overlay network to make informed routing decisions without real-time complexity, as the foundational underlay information is already prepared and available for quick overlay path calculation
Data Source
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AI summary
A route optimization method, a physical network device and a computer-readable storage medium. The method is used for a first physical network device and comprises: acquiring a detection message from at least one second physical network device, the detection message comprising a host name and interface information of the second physical network device (S100); according to the detection message, generating an underlay route table corresponding to an underlay network, wherein the underlay route table comprises the host name and the interface information (S200); synchronizing the underlay route table to a corresponding local overlay network, so that the overlay network generates an overlay route table according to the host name and the interface information (S300); acquiring a service message by means of the overlay network, determining a target physical network device, and according to the overlay route table, determining a target path corresponding to the target physical network device (S400); and sending the service message to a target overlay network corresponding to the target physical network device by means of the target path (S500).