Spanning Tree Protocol Active Switching Fabric Selection
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Standard bridging and routing protocols in telecommunications networks are inefficient in designating active and standby switching fabrics in constrained topologies, leading to slow convergence and unpredictable interactions with external networks, requiring costly and time-consuming proprietary solutions.
Innovation Solution
Implementing a hybrid approach using a standard spanning tree protocol to designate active and standby switching fabrics, where a virtual network topology representation and bridge root priority identifiers are used to select the preferred active switching device, allowing communication via a standard spanning tree protocol.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If standard bridging and routing protocols are used to manage redundant network connectivity, then the solution accommodates a wide range of different network topologies, but the convergence speed is slow and the protocol creates unpredictable interactions with external networks
Solution Approach 1:
The patent applies local quality by making the spanning tree protocol behavior topology-specific rather than universal. The system detects the constrained topology and activates optimized STP parameters specifically for this topology type, while maintaining standard behavior for other topologies. This allows fast convergence in constrained topologies without sacrificing adaptability to other network configurations.
Solution Approach 2:
The patent changes protocol parameters dynamically based on topology detection. When a constrained topology is detected, the system modifies STP parameters such as hello time, forward delay, and max age to optimized values that enable faster convergence. This parameter adaptation resolves the contradiction by providing both speed improvement for specific topologies and versatility for other topologies.
2Adaptability or versatility
If standard bridging and routing protocols are used to manage redundant network connectivity, then the solution is universally applicable, but the protocol creates disruptions by causing the network node to interact with the customer's external network in unexpected and unpredictable ways
Solution Approach 1:
The patent applies local quality by implementing topology-specific protocol behavior. For constrained topologies, the system activates optimized STP settings that prevent unexpected interactions with external networks while maintaining standard protocol behavior for other topologies. This ensures predictability where needed without sacrificing universal applicability.
Solution Approach 2:
The patent introduces topology detection and classification as an intermediary layer between the standard protocol and the network behavior. This intermediary analyzes the network topology and selects appropriate protocol parameters, acting as a mediator that ensures predictable behavior in constrained topologies while maintaining compatibility with external networks in other scenarios.
3Speed
If a customized solution with proprietary internal protocols is used to inform payload blades of the state of the switching fabric, then the convergence speed improves, but the device complexity and development cost increase
Solution Approach 1:
The patent applies universality by making the existing standard spanning tree protocol multi-functional. The protocol is configured to serve both its traditional role and the additional function of rapidly indicating active switching fabric state in constrained topologies. This eliminates the need for separate proprietary protocols while achieving fast convergence, thereby reducing device complexity and development costs.
Solution Approach 2:
The patent enables the standard protocol to self-configure for optimized performance in constrained topologies through automatic topology detection and parameter adjustment. The system self-adapts the protocol behavior without requiring complex proprietary implementations, achieving fast convergence while maintaining protocol simplicity and reducing development burden.
4Reliability
If a customized solution with proprietary internal protocols is used to inform payload blades of the state of the switching fabric, then the network disruptions are reduced, but the implementation cost and time increase
Solution Approach 1:
The patent makes the standard spanning tree protocol multi-functional by configuring it to both manage redundant connectivity and rapidly indicate active switching fabric state. This eliminates the need for separate proprietary protocols, reducing development time and costs while maintaining reliability and disruption reduction benefits.
Solution Approach 2:
The patent implements preliminary action by pre-configuring optimized STP parameters and topology detection mechanisms that are ready to activate immediately when needed. This preparation in advance allows the system to achieve fast convergence and reduce network disruptions without requiring time-consuming proprietary protocol development and deployment.
Data Source
AI summary
Methods, systems, and computer readable media for utilizing a standard spanning tree protocol to designate an active switching device in a network node are disclosed. In one example, the method includes generating a virtual network topology representation that includes a payload processing device connected to each of a first switching device and a second switching device, transmitting, from each of the first and second switching devices to the payload processing device, a standard spanning tree protocol signaling message that contains the virtual network topology representation and a bridge root priority identifier that has been derived using an algorithm that considers whether the transmitting switching device is a preferred active switching device or a preferred standby switching device, and signaling messages at the payload processing device to select the preferred active switching device as a root bridge of a logical spanning tree based on comparing bridge root priority identifiers.