🔀 Wavelength Services

Deterministic Optical Transport for Critical Workloads

Wavelength Services provide dedicated, Layer-1 optical “lambdas” (channels) across a carrier’s Dense Wavelength Division Multiplexing (DWDM) backbone. Unlike shared, routed services, a wavelength gives you fixed bandwidth, predictable latency, and transparent transport between endpoints—ideal for data-center interconnect (DCI), storage replication, AI/HPC fabrics, live media, and low-latency trading.

In the SolveForce Codex, Wavelength sits in 🌐 Connectivity = Grammar and underpins 🖧 Networks & Data Centers with guaranteed optical paths. See the map → 📚 SolveForce Codex

🎯 What You Get with Wavelength

Fixed, clean bandwidth

common rates: 10 Gb/s, 100 Gb/s, 400 Gb/s (and regionally 800 Gb/s); no oversubscription.

⏱️ Deterministic latency — optical path engineered end-to-end; typical fiber latency ≈ 5 μs per km (one way) + minimal optical gear overhead.

Transparency

carrier transports your signal at Layer-1; your Layer-2/Layer-3 design stays intact (EPL/OTN/OTU framing available).

Option for Layer-1 encryption

in-flight AES-256 on optical transponders for regulated or sensitive data.

Choice of protection

unprotected for ultra-low latency, or protected with diverse routes/50 ms optical ring protection.

Strong SLAs

latency, jitter, availability targets; fault isolation down to span/regeneration segments.

🔎 When to Choose Wavelength vs. Other Connectivity

Pick Wavelength when you need:

High throughput + low, stable latency

(AI cluster interconnects, SAN replication, market data).

Protocol transparency

(carry your own Ethernet/FC/InfiniBand framing; avoid MAC/IP changes).

End-to-end control

(you own higher-layer policies; the carrier just moves light).

Pick Dark Fiber when:

🔬 You want complete optical control (your DWDM, ROADMs, optics) and have ops skillcapex to manage it. → Dark Fiber

Pick Lit Ethernet when:

🧱 You want a managed Layer-2 service (EPL/EVPL) without optical details. → Lit Fiber

Pick MPLS / SD-WAN when:

🌐 You need any-to-any site connectivity with dynamic routing/policies. → MPLS • SD-WAN

🧱 Service Profiles & Interfaces

Ethernet Private Line (EPL)— native Ethernet handoff; simple plug-and-play for DCI and L2 domains.
Optical Transport Network (OTN)— OTU-framed wavelengths (e.g., OTU2/OTU4) with robust performance monitoring.
Common client interfaces— 10GBASE-LR, 100GBASE-LR4/ER4, 400G-ZR/ZR+ coherent pluggables (subject to distance/optics).
Fiber type— Single-mode (SMF) G.652D/G.655; connectors typically LC/SC; cross-connects provisioned in colo MMRs. → Colocation

🧭 Design Options (Pick Your Path)

1) Protection & Diversity

Unprotected

fastest, lowest overhead; rely on dual diverse circuits at the design level.

Protected

optical ring or 1+1 path protection; ~50 ms switchover typical; verify exact SLA.

Physically diverse routes

separate laterals, conduits, bridges, and POPs; order route maps/LOAs to confirm separation.

2) Distance Classes

Metro

(≤ 80–120 km): few/no regenerators; minimal latency; perfect for active/active DC pairs.

Regional

(≤ 600–1,200 km): add Forward Error Correction (FEC) and occasional regeneration (REG); confirm ROADM add/drop latency.

Long-haul

(1,000+ km): multiple spans with FEC/REG; consider 400G ZR+ vs. transponder shelf for reach vs. power/space tradeoffs.

3) Optical Building Blocks

Transponders / Muxponders

map client lanes into wavelengths; aggregate multiple 10G into a 100G/400G line.

DWDM Mux/Demux

combine many wavelengths onto one pair; color plan and channel spacing (50/100 GHz).

ROADM

Reconfigurable Optical Add/Drop Multiplexer; dynamic pathing through the optical mesh; small add/drop latency.

🛡️ Security & Compliance at Layer-1

AES-256 Layer-1 encryption

on transponders/coherent optics; near-zero latency tax vs. higher-layer encryption.

MACsec/IPsec complement

add Layer-2 MACsec or Layer-3 IPsec where policy requires. → Encryption

Standards compliance

supports HIPAA/PCI DSS/NIST/FedRAMP posture when paired with higher-layer controls.
See our security catalog → Cybersecurity

🧮 Sizing & Performance Planning

Throughput — right-size to 100G/400G for DCI/AI; consider 10G for point solutions or backup.
Latency budget — fiber path + ROADM + FEC/REG (~μs to low ms); set SLOs by application class:
Class A (metro): ≤ 2 ms one-way
Class B (regional): ≤ 15–35 ms
Class C (continental): ≤ 80–120 ms
Jitter — effectively near-zero at Layer-1; validate for synchronous apps (voice/video/market data).
Loss — design below 0.1% sustained; monitor optics for dB drift on long spans.

🏭 Common Use Cases

Data Center Interconnect (DCI)

stretch L2 domains or run L3 EVPN/VXLAN over deterministic optical paths. → Networks & Data Centers

Synchronous Storage Replication

SAN/block replication (SRDF, MetroCluster, etc.) with strict RPO/RTO across metro. → SAN

AI/HPC Fabric

east-west spine bandwidth for GPU pods and training clusters; predictable throughput for NCCL/collectives.

Market Data & Trading

low jitter for feed handlers/matching engines; route diversity for venue resilience.

Live Media Contribution/Distribution

mezzanine feeds and uncompressed flows over engineered paths; backup via CDN. → CDN

Lab/Research Networks

burst-heavy experiments; transparent framing for custom protocols.

🧰 Hand-Offs & Interoperability

Cross-connects

fiber jumpers from your rack to the carrier DWDM panel (colo MMR).

Client alignment

match client optics (e.g., LR4/ER4) and lane mapping; confirm FEC expectations.

L2/L3 overlay choices

EPL for simple L2; or EVPN/VXLAN over routed cores for scale.

📊 SLAs, Monitoring & Operations

SLA measures

latency, jitter, availability, and time-to-restore defined per route and service class.

Telemetry

light levels, FEC counters, symbol errors, BER; integrate with NOC dashboards. → NOC

Change control

route changes can alter latency; treat fiber work like a database schema change.

Testing

RFC 2544/Y.1564 turn-ups; ongoing SLA audits; optical OTDR traces on long spans.

💵 Commercials & Ordering

Pricing model

Monthly Recurring Charge (MRC) per wavelength + Non-Recurring Charges (NRC) for install/cross-connects.

Distance & route

metro vs. regional vs. long-haul affects price, regen count, and protection options.

Diversity paperwork

request route and POP diversity letters; require separate laterals and meet-me rooms if possible.

🛠️ Quick Checklist (Pre-Order)

🎯 Objective — DCI replication? AI fabric? Trading/market data?
🧮 Rate & count — 10G, 100G, 400G (now); consider future growth to 2× or 4×.
🧭 Routes — primary/secondary with physical diversity; document POPs and laterals.
🧱 Protection — unprotected vs. protected (ring/1+1); define failover behavior.
🔐 Security — L1 encryption required? Add MACsec/IPsec layers as needed.
🔌 Interface — optics type (LR4/ER4/ZR/ZR+), lane mapping, FEC.
🧷 Cross-connects — order MMR cross-connects at both ends.
📊 SLOs — latency/jitter/availability; add to monitoring & incident runbooks.
🧾 Contracts — term, MRC/NRC, diversity SLAs, restoration commitments.
🧪 Turn-up tests — RFC 2544/Y.1564, OTDR baseline; store “as-builts.”

🔄 Where Wavelength Fits in the Recursive Model

1) 🌐 Grammar — Wavelength is a Layer-1 transport rule set under Connectivity. → Connectivity
2) ☁️ Syntax — Feeds Cloud with deterministic pipes for migration, backup, DRaaS, and DCI. → Cloud
3) 🔒 Semantics — Carries Security controls (L1 encryption, MACsec/IPsec overlays) without altering meaning. → Cybersecurity
4) 🤖 Pragmatics — Enables stable, high-throughput AI pipelines and GPU fabrics. → SolveForce AI
5) 🏛️ Foundation — Language-first governance prevents ambiguity in routes, optics, and policies. → Primacy of Language

Open the full map → 📚 SolveForce Codex

📞 Get a Wavelength Design

📞 Call: (888) 765-8301

✉️ Email: contact@solveforce.com

Related pages:
Networks & Data Centers • Direct Connect / On-Ramps • Colocation • Dark Fiber • Lit Fiber • MPLS • CDN • NOC

Key terms in plain language

Open a term for a concise explanation of language used on this page.

Fiber Internet

Internet delivered through strands of glass using light. Fiber commonly supports high capacity, low latency, and strong upload performance, but availability must be confirmed for the exact address.

Bandwidth

The amount of data a connection can carry in a given time, usually measured in Mbps or Gbps. More bandwidth supports more users, devices, and simultaneous applications.

Latency

The time it takes data to travel between two points. Lower latency improves voice, video meetings, cloud applications, gaming, and other real-time services.

Service-Level Agreement (SLA)

A provider’s written commitment covering service targets such as availability, response time, repair time, and sometimes financial credits when commitments are missed.

SD-WAN

Software-defined wide area networking. It manages multiple connections and chooses paths based on application needs, performance, and policy to improve resilience and control.

MPLS

Multiprotocol Label Switching, a private-network technology that directs traffic along managed paths. Organizations use it for predictable connectivity between locations.

Disaster Recovery (DRaaS)

A plan and service for restoring applications, data, and operations after an outage or disruption. DRaaS provides recovery infrastructure through a managed cloud service.

Cybersecurity

The practices and controls used to protect identities, devices, networks, applications, and data from unauthorized access, disruption, or manipulation.