  Recent advancements in low-Earth-orbit (LEO) satellites aim to bring
resilience, ubiquitous, and high-quality service to future Internet
infrastructure. However, the soaring number of space assets, increasing
dynamics of LEO satellites and expanding dimensions of network threats call for
an enhanced approach to efficient satellite operations. To address these
pressing challenges, we propose an approach for satellite network operations
based on multi-layer satellite networking (MLSN), called "SatNetOps". Two
SatNetOps schemes are proposed, referred to as LEO-LEO MLSN (LLM) and GEO-LEO
MLSN (GLM). The performance of the proposed schemes is evaluated in 24-hr
satellite scenarios with typical payload setups in simulations, where the key
metrics such as latency and reliability are discussed with the consideration of
the Consultative Committee for Space Data Systems (CCSDS) standard-compliant
telemetry and telecommand missions. Although the SatNetOps approach is
promising, we analyze the factors affecting the performance of the LLM and GLM
schemes. The discussions on the results and conclusive remarks are made in the
end.
