You are reviewing a proposed long-haul backbone design for latency-sensitive east-west traffic between two data center regions. The optical team can meet the required capacity with several DWDM options, but the choices differ in route length, number of ROADMs, FEC mode, regeneration points, and operational resilience. The business wants the lowest practical latency because the network will carry tightly coupled distributed workloads, but the transport team is pushing for designs that are easier to operate and scale. Before the design is finalized, you need a clear framework for what DWDM factors matter most for backbone latency and how you would make the trade-offs explicit.
What DWDM considerations matter for backbone latency, and how would you evaluate the trade-offs when choosing a backbone design?
You are reviewing a proposed long-haul backbone design for latency-sensitive east-west traffic between two data center regions. The optical team can meet the required capacity with several DWDM options, but the choices differ in route length, number of ROADMs, FEC mode, regeneration points, and operational resilience. The business wants the lowest practical latency because the network will carry tightly coupled distributed workloads, but the transport team is pushing for designs that are easier to operate and scale. Before the design is finalized, you need a clear framework for what DWDM factors matter most for backbone latency and how you would make the trade-offs explicit.
What DWDM considerations matter for backbone latency, and how would you evaluate the trade-offs when choosing a backbone design?
