What is the purpose of end-to-end labeling in a CRCF labeling system?

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End-to-end labeling is about creating a continuous, cross-domain way to identify a circuit from its origin to its termination. This lets technicians trace a path through the CRCF and across all handoffs, quickly verify connections, and pinpoint where a fault or change occurred. Using a hierarchical labeling scheme ties local labels in the CRCF to higher-level circuit identifiers, so you can move up or down the chain without losing context. Centralized records store all label mappings and circuit references in one place, ensuring information stays consistent and up-to-date as equipment or routes change. This combination gives reliable traceability and easier maintenance, which is why a system that uses end-to-end references plus centralized records is the best fit.