Your connectivity in France.
As simple as ielo.
Because not all fiber is created equal, your physical sites deserve a fiber connectivity truly designed for professional use.
Connecting a physical site requires more than just a fiber access. In a market where many connectivity solutions rely on BtoC infrastructure, businesses sometimes have limited guarantees about the architecture truly supporting their digital operations.
At ielo, every link is built on our own network, with no third-party dependency: a dedicated infrastructure, a carefully engineered and documented route, and a connection fully managed by our teams.
Whether you’re connecting a single site, linking multiple locations, or reaching a data center, your connectivity is built on a fully controlled infrastructure, designed specifically for B2B requirements.
Looking to connect a business site with a reliable, stable connection?
FttO — Fiber to the Office — is no longer reserved for large enterprises. With business needs becoming increasingly critical (cloud, SaaS, remote work, unified communications, etc.) and more accessible offers now available, FttO has become a relevant solution for any organization that requires a minimum level of stability and predictability.
At ielo, we made a clear choice: we specialize in enterprise-grade networks to ensure high service availability, controlled recovery times in the event of incidents, and bandwidth that is truly delivered as contracted.
For straightforward site connectivity, we offer two types of business-grade access:
- FttO Burst: guaranteed bandwidth with burst capacity (10/100, 20/200, 50/500, 100/1000 Mbps) to absorb traffic peaks while keeping costs under control.
- 100% Guaranteed FttO: from 5 Mbps up to 10 Gb/s, with constant bandwidth and a 4-hour MTTR, designed for critical use cases.
Our goal: fiber connectivity delivered over a Dedicated Optical Local Loop, designed for the most demanding professional use cases while remaining cost-effective.
Looking to interconnect multiple sites with a fully controlled optical path?
When multiple locations need to exchange data — offices, production sites, critical platforms, and more — performance depends on one key factor:
the consistency of transport between your sites, not just the quality of each individual access.
In many multi-site architectures, traffic still relies on IP tunnels, with variable routing, latency that fluctuates based on global network conditions, and limited control over the actual path.
At ielo, we deliver true physical interconnections, purpose-built for your internal traffic:
- Dark Fiber:passive optical fiber pairs, ready to be lit, over controlled and fully known routes.
- Wavelengths: high-performance capacity for transporting your data over long distances.
- E-Line (Lan-to-Lan): flexible, fully managed connections with built-in security.
Our goal: reliable optical interconnections designed for your internal traffic and fully aligned with your requirements and constraints.
Looking to extend your network to your hosted infrastructure?
To communicate with your servers, PoPs, interconnection platforms, or hosted clusters, connectivity must rely on stable optical transport and fully controlled routes.
Thanks to our nationwide network and our presence in nearly 200 data centers, we offer:
- site ↔ data center interconnections using dark fiber or wavelengths;
- documented, consistent paths, fully integrated into our network;
- clear synergies with our data center services — operator colocation, cross-connects, Out-of-Band — and, more broadly, the entire ielo service portfolio.
Our goal: a seamless extension of your network architecture, from the physical site all the way to the data center.
Our solutions
ielo fiber building blocks to connect your sites, cleanly and without compromise.
FttO & FttO Burst
Two offerings, one goal:
deliver truly dedicated connectivity built for your business sites.
Dark Fiber
The raw foundation:
your own fiber pairs to build exactly the network you want.
Wavelengths
High-performance capacity:
optical wavelengths engineered for your heaviest workloads.
Why choose ielo
for connecting your physical sites?
An independent fiber network designed for professional use
With 12,000 km of long-haul backbone and 21,000 km of metropolitan network ensuring nationwide presence, we operate a dedicated infrastructure designed for professional links, with controlled routes, high availability, and transport consistency.
An in-house Engineering Office that designs and documents every interconnection
Our teams analyze your constraints, design the optical routes, validate the topology, and document the entire path.
With ielo, you know exactly how your sites are connected.
24/7 operations for your critical environments
Our NOC continuously monitors your links, alarms, incidents, and optical measurements included.
With our MTTR commitments and clear reporting, you manage your service levels with full transparency.
Your questions, our answers… Simple, the ielo way!
A straightforward, technical FAQ to guide your connectivity choices:
business-grade fiber, interconnections, and optical transport.
What are the advantages of FttO compared to public fiber access?
A public fiber access relies on a shared network:
- shared aggregation points,
- common equipment,
- multiple dependencies,
- and an optical path you do not control.
FttO, on the other hand, is based on a Dedicated Optical Local Loop, integrated into an independent network:
→ no shared points of failure
→ no imposed routes
→ no third-party dependencies
→ a controlled and fully documented path
→ availability aligned with professional services
A connectivity truly designed for business use.
Is FttO suitable for small businesses?
Yes. With the evolution of business uses (SaaS, cloud, video conferencing, remote work) and the introduction of offerings such as FttO Burst, business-grade fiber connectivity is no longer reserved for large enterprises, it has become accessible and relevant for all professional sites.
What’s the difference between FttO, LAN-to-LAN, dark fiber, and wavelengths?
All these solutions are fiber-based, but their use cases and levels of control differ:
- FTTO: a reliable, high-performance fiber access service to connect a site (with guaranteed or burstable bandwidth).
- Dark Fiber: a dedicated raw fiber pair that you light with your own optics — full control over the optical architecture.
- Wavelengths (Waves): wavelengths activated by ielo to carry high-volume traffic. They can be used for site-to-site, site-to-datacenter, or datacenter-to-datacenter connectivity, depending on your needs and available optical routes.
- E-Line / LAN-to-LAN: flexible, fully managed connections with built-in security.
Do your solutions allow you to connect two geographically distant sites?
Yes. Depending on your needs, we can interconnect nearby or geographically distant sites using LAN-to-LAN, dark fiber, or wavelengths, over documented, consistent optical paths.
Can a site be directly connected to a data center?
Thanks to our presence in nearly 200 data centers, we also offer site ↔ data center connections using dark fiber or wavelengths, fully integrated into our metropolitan and long-haul networks.
Do you offer diverse optical paths for resilience?
Yes. We can design multi-path architectures (protection or restoration), based on an analysis of your risks and critical traffic flows.
What is the delivery timeframe for an FttO service or an interconnection?
It depends on the site and the optical path to be implemented.
On existing infrastructure, activation can be fast.
For new builds or specific routes, an engineering study and construction work may be required.
For FttO, our contractual delivery timeframe is 4 weeks, made possible by industrialized processes across the entire deployment chain.
Can you guarantee performance between our sites?
Yes. LAN-to-LAN and wavelength services deliver stable, predictable performance. Dark fiber performance depends on your own equipment, but gives you full control over the architecture.
In all cases, the optical path is documented and fully integrated into our network, so you know exactly how your sites are connected.
A project, a need
or site connectivity
to explore?
Tell us about your sites, your constraints, and the architecture you want to put in place.
We’ll take care of the rest.