Virtualized Node for Multi-Vendor Link Redundancy
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Solution Overview
Problem
Current network link redundancy solutions are limited in providing cost-effective, multi-vendor compatible, and scalable active-standby connections, especially for Layer 2 (L2) networks, as they often result in configuration errors, fail to propagate L2 protocols, and are not designed for mid-point use or larger network extensions.
Innovation Solution
Implementing a node with virtualized network topology and logically partitioned ports using Resilient Ethernet Protocol (REP) internally and Multiple Spanning Tree (MST) externally, allowing for per-VLAN active-active redundancy with fast convergence and interoperability across different protocols and vendors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If current network link redundancy solutions are implemented, then active-standby connections are provided, but configuration errors occur and L2 protocols fail to propagate
Solution Approach 1:
The patent introduces an intermediary mechanism that translates between Resilient Ethernet Protocol (REP) and Multiple Spanning Tree Protocol (MST). This translation layer mediates between the active-standby link redundancy requirements and L2 protocol propagation needs, preventing configuration errors by automatically handling protocol compatibility and convergence timing.
2Adaptability or versatility
If multi-vendor compatibility is achieved, then interoperability improves, but system complexity increases
Solution Approach 1:
The patent implements a universal node design that can simultaneously support multiple protocols (REP and MST) and perform multiple functions (active-standby redundancy and protocol translation). This multi-functional approach achieves multi-vendor compatibility while consolidating complexity into a single capable device rather than requiring separate specialized devices.
3Productivity
If network topology is collapsed into a single device, then scalability improves, but protocol propagation capability is reduced
Solution Approach 1:
The collapsed single-device topology incorporates an intermediary protocol translation mechanism that receives L2 protocols from external networks, translates them between REP and MST formats, and propagates them appropriately. This intermediary function enables the single device to maintain both fast convergence and reliable protocol propagation capabilities.
Data Source
AI summary
Network link redundancy may be provided. A node comprising a virtualization of a network topology comprising a plurality of devices may be provided. Next, the node may be provided with at least two ports. Each of the at least two ports may respectively comprise an inside facing portion that uses a first protocol and an outside facing portion that uses a second protocol. The node may operate using the first protocol. A behavioral mode of the at least two ports may be controlled and the behavioral mode of the at least two ports may be communicated to at least one other node outside the node.