Network Switch Queueing for Mixed-Capacity Optical Links

The patent applies local quality by assigning different transceiver capacities to different network nodes based on their specific roles and requirements. Network switches use higher-capacity transceivers to aggregate and forward traffic efficiently, while servers use lower-capacity transceivers for their access links. This differentiated approach optimizes bandwidth utilization at each location without unnecessarily increasing device costs across the entire network.

The patent implements dynamic queueing schemes that adapt to varying traffic conditions and node capabilities. The queueing mechanism dynamically adjusts bandwidth allocation based on real-time network state, allowing higher-capacity transceivers to be fully utilized when needed while maintaining cost-effectiveness during lower-demand periods. This dynamic adaptation resolves the contradiction by making transceiver capacity utilization flexible rather than static.

The patent implements local quality by deploying high-capacity transceivers selectively at network switches where traffic aggregation and forwarding occur, rather than uniformly across all nodes. Servers and other end devices use lower-capacity transceivers appropriate for their access-rate requirements. This targeted deployment achieves high network throughput at critical points while significantly reducing overall deployment costs.

The patent applies partial action by implementing high-capacity transceivers only where necessary to achieve the desired network throughput performance. Rather than over-provisioning the entire network with high-capacity equipment, the solution selectively enhances capacity at network switches and core nodes, achieving sufficient throughput performance while avoiding excessive deployment costs at edge nodes where full capacity is not required.

The patent introduces network switches as intermediaries between high-capacity transmission infrastructure and lower-capacity servers. The switches operate at higher throughput rates to efficiently aggregate and forward traffic, while simultaneously providing interface adaptation to servers with lower-capacity transceivers. This intermediary role resolves the compatibility problem by decoupling the transmission efficiency requirements from the server interface requirements.

The patent applies parameter changes by dynamically adjusting transmission parameters such as data rate, modulation format, and queueing policies based on the capabilities of communicating nodes. When transmitting to lower-capacity servers, the system adapts parameters to match server requirements while maintaining high overall network efficiency through optimized switching and multiplexing. This parameter adaptation enables seamless compatibility across heterogeneous network nodes.