Edge Node NSP Switchover for Last-Mile Network Reliability
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing network architectures face challenges in providing seamless switchover between Internet Service Providers (NSPs) due to differences in IP addressing structures, leading to broken session traffic and a sub-par customer experience.
Innovation Solution
The implementation of an edge node within the data traffic architecture that handles different IP addressing structures between multiple NSPs, performing network address translation (NAT) and Internet protocol detail record (IPDR) generation in a scalable, reliable, and secure manner.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple NSPs are employed to mitigate network availability issues, then network reliability is improved, but session traffic breaks occur during switchover due to different IP addressing structures
Solution Approach 1:
The patent introduces an edge node as an intermediary between the last-mile network and multiple NSPs. This edge node performs network address translation (NAT) to generalize IP addresses, creating a mapping layer that abstracts the different IP addressing structures of various NSPs. When switchover occurs, the edge node maintains session continuity by translating addresses according to its mapping table, preventing session breaks that would otherwise occur due to IP structure differences between NSPs.
2Reliability
If NSP switchover is implemented to ensure continuous service, then network resilience is improved, but data transmission delays occur during the switching process
Solution Approach 1:
The patent implements preliminary actions by pre-establishing IP address mappings in the edge node's NAT table before switchover is needed. The edge node maintains a mapping table that correlates generalized IP addresses with specific NSP IP addresses. When switchover becomes necessary, the edge node can immediately apply the pre-configured mappings without performing real-time address translation, thereby eliminating transmission delays that would occur during active switching.
3Adaptability or versatility
If different IP addressing structures are used by different NSPs, then each NSP can optimize its own network architecture, but address structure differences cause communication errors during switchover
Solution Approach 1:
The patent applies parameter changes by transforming IP address parameters through network address translation. The edge node maintains a mapping table that stores correspondence relationships between generalized IP addresses (independent of specific NSP structures) and actual NSP-specific IP addresses. This parameter transformation allows each NSP to maintain its optimized IP addressing structure while the edge node harmonizes these differences through systematic address translation, preventing communication errors during switchover.
Data Source
AI summary
Technologies directed to performing switchover across Internet service providers in a last-mile network are described. One method includes receiving, by a first wireless device, a destination address, a first network address of a first network addressing scheme, and a first message. The method further includes determining a first status of at least one of a first NSP or a second NSP. The first NSP uses a second network addressing scheme and the second NSP uses a third network addressing scheme. The method further includes determining a second network address of the third network addressing scheme. The method further includes sending, using the second NSP the second network address and the first message. The method further includes determining a third network address of a fourth network addressing scheme and sending to a fourth wireless device corresponding to the destination address the third network address and the first message.