Compute Node Cluster Routing with Fault-Aware Port Selection
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Solution Overview
Problem
Data center networks with compute node clusters face challenges in maintaining routing performance due to faults, which can lead to adverse effects on data packet routing, highlighting the need for effective fault detection and management mechanisms to ensure continuous operation.
Innovation Solution
The implementation of a fault detection and routing management system within compute nodes, which includes logic to determine optimal output ports for data packet routing based on destination information and fault status of links, and proactive data packet discard mechanisms to prevent propagation of faults, ensuring data packets are routed around faulty paths.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a cluster of compute nodes is used as a router to provide extensible routing capacity, then routing flexibility and capacity are improved, but the system becomes more susceptible to faults that can adversely affect routing performance
Solution Approach 1:
The system performs preliminary fault detection by monitoring data packet counts at input and output ports before routing decisions are made. By detecting faults in advance through conservation of flow verification, the system can proactively adjust routing paths to avoid faulty links, thereby maintaining routing performance while preserving the flexibility of cluster-based routing architecture.
2Reliability
If fault detection and routing management mechanisms are implemented to maintain routing performance, then reliability is improved, but device complexity increases
Solution Approach 1:
Each compute node autonomously performs fault detection by comparing its own input and output data packet counts without requiring external monitoring systems. The conservation of flow principle enables self-diagnosis where nodes independently verify their operational status and automatically adjust routing behavior, eliminating the need for complex centralized fault management infrastructure.
3Reliability
If data packets are routed around faulty paths to maintain continuous operation, then reliability is improved, but loss of time occurs due to adaptive routing decisions
Solution Approach 1:
The system performs preliminary fault detection and maintains updated fault status information about links and compute nodes before routing decisions are required. By having fault information pre-available through continuous monitoring of data packet counts, the system can make rapid routing adjustments without time-consuming fault diagnosis delays, thus minimizing loss of time while ensuring continuous operation.
Data Source
AI summary
Apparatus and method to facilitate networked compute node cluster routing are disclosed herein. In some embodiments, a compute node for cluster compute may include one or more input ports to receive data packets from first selected ones of a cluster of compute nodes; one or more output ports to route data packets to second selected ones of the cluster of computer nodes; and one or more processors, wherein the one or more processors includes logic to determine a particular output port, of the one or more output ports, to which a data packet received at the one or more input ports is to be routed, and wherein the logic is to exclude output ports associated with links indicated in fault status information as having a fault status to be the particular output port to which the data packet is to be routed.