Cisco Core & Aggr Essential SIA per 400G 12-35 Month Term | Licensing — ESS-CA-400G-SIA-ST

Keep core and aggregation services aligned to the lifecycle of your network investment with Cisco Essential SIA per 400G. Built for teams that need defined coverage without overcommitting to long contracts, this term-based option supports 12- to 35-month planning horizons and helps preserve service continuity across critical infrastructure windows. For enterprise environments, the value is in predictability. When core and aggregation layers carry the traffic that matters most, service alignment becomes a procurement and operations decision, not an afterthought. This Cisco SIA offering gives you a structured way to maintain coverage for 400G capacity while matching the term to your deployment, refresh, or support strategy. It is a practical fit for organizations standardizing network support around specific capacity tiers and contract durations. Instead of absorbing the cost and complexity of broader licensing than you need, you can anchor support to the exact service scope required for the environment. That makes it easier to budget, renew, and keep critical network layers under consistent coverage. Ideal For Core network support planning for 400G infrastructure Aggregation layer coverage during staged refresh cycles Budget-controlled service alignment for enterprise procurement Contracted support for capacity-specific network deployments Why This Product 1 Covers 400G core and aggregation environments 2 Offers a 12-35 month term range 3 Fits capacity-specific enterprise planning 4 Supports predictable service budgeting