Abstract
The present disclosure provides service-resdy trunk protection switching. More particularly, the present disclosure focuses on 1:N trunk protection for a given fiber span or for a given optical path (plurality of spans) between two nodes. In such configuration, each protection-link between two nodes can have different hop-counts (e.g., number of spans, amplifiers etc.), EDFA only amplified vs. Raman amplification and different fiber-types from each other on different spans within the protection group. Typically, Trunk Protection Switch (TPS) can work with total-power offset (such as if total-power drops below certain threshold then switch) or with pilot-tones (i.e., if pilot-tone goes missing from an active-path, then switch to other). However, in 1:N trunk-protection, with (N-1) protection-link options, when the active-path gets faulted, switching randomly to one of the links does not guarantee that the traffics will recover within 50ms or such shorter timeframe.
Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 License.
Recommended Citation
Anonymous, "SERVICE-READY TRUNK PROTECTION SWITCHING", Technical Disclosure Commons, (February 28, 2022)
https://www.tdcommons.org/dpubs_series/4935