For multi-site businesses
Keep control, cut the bill, simplify the architecture
You run a network of 5 to 50 sites. sdMPLS® hands you back control of your core network, with standard access links (FTTH, FTTO, xDSL, 4G/5G) at market prices, and brings WAN, voice and cloud together on a single infrastructure.
What you are living with
Four pain points we hear from multi-site IT leaders
The MPLS bill
MPLS costs on average 2.9 times more than a business Internet access.
Rigidity
Every change to routing or QoS goes through a request to the operator. The core is not yours.
Site opening lead times
60 to 120 days to open an MPLS site: an acquisition, a move or a temporary site becomes a project.
Two infrastructures
An MPLS network for the WAN, VLANs or a VPN for the cloud, a separate voice platform: so many contracts and operations to maintain.
Figures: Flex.eu synthesis of public market data (analysts, operators), SDO study, March 2026.
What you get
An operator's capabilities, without being one
An operator owns three things you have never had: collection gateways towards the infrastructure networks, a core network, and control over both. SD-WAN gave you control over your site appliances, not over the core. MPLS rented you the result, without the control. sdMPLS gives you both objects, in virtual form: that is what the two halves of its name say.
SD — your core network, software-defined
Your VRB is a virtual backbone router dedicated to your company, sealed off from the other customers' inside the SDO core. It exposes what a network team already knows how to do: routes, QoS, VLANs and segments, opening a flow, with immediate effect. You run it yourself, or your Powered by sdMPLS partner runs it for you.
MPLS — your multi-operator collection gateway, virtualised
Flex.eu already collects eleven fixed infrastructure networks, fibre and copper, through duplicated collection gateways, plus 4G/5G mobile on a private APN. Your links, whichever operator delivers them, land directly in your core network, off the public Internet, including 4G/5G SIM cards. Just as on a real collection gateway, you hold the addressing, the routing, the quality of service and the segmentation; you sign no wholesale collection contract and build no interconnection.
Who does what
| What | Who | What it covers |
|---|---|---|
| The access links | The infrastructure operators (eleven networks collected) | Delivery of the fibre, copper and 4G/5G links of each of your sites, at market price. |
| The core network | Flex.eu | Building and operating the SDO core: collection gateways, geo-cluster across two data centres in the Paris region, monitoring, 99.95% availability, 4-hour GTR 24/7. |
| Your network policy | You, or your Powered by sdMPLS partner | Routing, quality of service, segmentation, opening flows, from your VRB, with immediate effect. |
You keep what an operator has that is precious, the control; you leave what it has that is costly, the infrastructure and its operation.
What sdMPLS changes
Concretely, for your network
sdMPLS gives your company its own virtual backbone router, the VRB, in the operator's virtualised core network. You get what MPLS gave you (a private, controlled core, with real traffic engineering) and what SD-WAN promised you (standard, low-cost links, brought into service in a few days).
- Open a site in days, not months. A standard link (FTTH, FTTO, xDSL, 4G/5G) at market price, and the site joins your core network. A provisional start-up over 4G/5G is possible while waiting for fibre.
- One core for WAN, voice and cloud. Your sites, your telephony and your hosted resources run on the same VXLAN core, through your VRB. A single architecture to understand, operate and evolve.
- Control by your team, or by your partner. The VRB exposes what a network team already knows how to do: routing, QoS, VLANs and segments. You control your policy; running the core remains the operator's job; and if you prefer, your Powered by sdMPLS partner operates the VRB for you.
- No lock-in. sdMPLS is built on standard protocols (VXLAN, EVPN, BGP) and on a routing system your team already knows: your configuration exports as plain text and can be reused elsewhere.
- Hosted in France, controlled end to end. The core network runs as a geo-cluster across two separate data centres in the Paris region, on a platform that Flex.eu develops, hosts and operates itself. Your links are collected from eleven infrastructure networks, off the public Internet.
What it costs
The price of standard links, plus the VRB
The cost of an sdMPLS network is made up of the standard access links, billed at market prices, and the VRB. There are neither MPLS-specific links nor per-site overlay licences. The price depends on the number of sites, the link technologies available and the services carried (voice, hosting).
A tailored quote rather than a public price list
The cost of an sdMPLS network depends on the access links available at each of your sites (shared fibre, dedicated fibre, xDSL, 4G/5G) and on the sizing of your VRB. Flex.eu does not publish a price list: a Powered by sdMPLS partner draws up a quote based on your estate of sites and your current links, to be compared with your MPLS bill. Request a quote.
Customer stories
They use sdMPLS
See the VRB in action
A VRB demonstration starts from your current topology and shows what your team would control: routing, QoS, segmentation, opening a site.