Cisco ESS-TXP-SIA3 Essential Coherent DWDM Interface SIA | Support Warranty — ESS-TXP-SIA3

Extend support coverage across a critical optical transport component with Cisco Essential Coherent DWDM Interface SIA for 36-60 months. Built for infrastructure teams that need predictable service continuity, this support offering helps preserve uptime on coherent DWDM deployments without forcing premature replacement decisions. For networks carrying high-value traffic, the cost of an unsupported interface is rarely limited to the part itself. It can ripple into maintenance delays, longer outage windows, and unplanned procurement pressure. This service helps keep the hardware within a defined support window so operations teams can plan around lifecycle milestones instead of reacting to them. Cisco-backed coverage is especially valuable when the interface sits inside a transport path that cannot tolerate ambiguity. By aligning support duration with multi-year refresh planning, procurement and engineering teams gain a cleaner path for budgeting, spares strategy, and service governance. The result is a more controlled operating model for DWDM infrastructure that must stay available, documented, and supportable over time. Ideal For Supporting coherent DWDM interface deployments in carrier or enterprise transport networks Extending coverage during staged optical refresh programs Maintaining supportability for critical links in long-term infrastructure plans Reducing risk on hardware that must remain serviceable through multi-year operations Why This Product 1 Multi-year coverage instead of short-term break-fix exposure 2 Cisco-backed support for coherent DWDM interface hardware 3 Defined 36-60 month term for cleaner lifecycle planning 4 Better fit for critical optical transport environments than ad hoc support