Overlay Routing Synchronization for 5G Path Selection
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The independent addressing and routing of overlay and underlay networks in 5G networks leads to inefficient utilization of network resources and inability to provide fast and reliable services due to packets often choosing the same path or gateway, limiting the effectiveness of network slicing.
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 it 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 uses independent routing from underlay network, then network virtualization and isolation are achieved, but network resource utilization efficiency deteriorates
Solution Approach 1:
The patent merges overlay routing with underlay routing by having overlay nodes learn underlay routing tables and perform joint routing decisions. The overlay routing table is constructed based on underlay routing information, enabling coordinated path selection that optimizes resource utilization while maintaining virtualization benefits.
Solution Approach 2:
The patent implements feedback mechanisms where overlay nodes continuously monitor underlay network status and adjust routing decisions accordingly. Routing tables are dynamically updated based on real-time network conditions, allowing the system to adapt and optimize resource allocation while maintaining network isolation.
2Ease of operation
If packets from different nodes choose same path or gateway, then routing simplicity is maintained, but service reliability and speed deteriorate
Solution Approach 1:
The patent applies local quality by allowing different nodes to have customized routing paths based on their specific requirements and local network conditions. Each overlay node can select optimal paths for its traffic flows while maintaining overall routing simplicity through standardized routing table structures and protocols.
3Adaptability or versatility
If overlay network operates independently from underlay network, then network layer isolation is achieved, but path optimization capability deteriorates
Solution Approach 1:
The patent implements nesting by embedding underlay routing information within the overlay routing structure. Overlay routing tables contain nested underlay routing entries, allowing the overlay network to leverage underlay path optimization capabilities while maintaining logical layer separation and isolation.
Data Source
AI summary
A route optimization method, a physical network device and a computer-readable storage medium are disclosed. The method may include: acquiring a probe packet from at least one second physical network device, where the probe packet includes a host name and interface information; generating, according to the probe packet, an underlay routing table corresponding to an underlay network, where the underlay routing table includes the host name and the interface information; synchronizing the underlay routing table to a local corresponding overlay network to enable the overlay network to generate an overlay routing table; acquiring a service packet through the overlay network and determining a target physical network device, and determining, according to the overlay routing table, a target path corresponding to the target physical network device; and transmitting, through the target path, the service packet to a target overlay network corresponding to the target physical network device.