Network and Connectivity
One cut cable can take down two circuits sold as carrier diverse. Most networks need several services, bought from different carriers on different terms. We match each site to the right service and supplier, anywhere in the world, and stay with every agreement after it is signed.
Book a conversationHow the Network Services Fit Together, and How to Choose
A network is bought in layers. At the bottom is the physical path: fiber, a radio link or a satellite. On it runs the transport service you pay for. Dedicated internet and business broadband connect a site to the internet. A wavelength is an optical channel between sites that the provider runs. SD-WAN sits above every transport and steers traffic across whatever a site has. Ethernet private lines carry a committed rate between your sites, under service types defined by the industry standards body MEF (now Mplify), and MPLS keeps each customer's routes separate across one provider's private backbone. Dark fiber gives you the strands and leaves the equipment to you. In our judgment, the right network is usually a mix, chosen site by site, and the table below is our view of where each service fits.
When outside help makes sense
- A data center, plant or headquarters where an outage stops the business, and diversity has to be proven, not promised.
- A move from MPLS to SD-WAN, or an MPLS renewal with no settled plan for what comes next.
- New sites, or sites off a carrier's own network, where construction and building access decide the install date.
- Circuits from several carriers on different terms and renewal dates.
When it does not
In our judgment, a new sourcing effort can wait for:
- A small site that needs internet and nothing more. A business broadband service, with a second path if the site matters, may be all it needs.
- A stable network on agreements with years left and terms that already hold up. It needs attention before the notice dates, not a sourcing event now.
If one well-chosen circuit is enough for a site, we will say so.
Ten services, and where each fits
| What you buy | Where it fits | Where it usually doesn't | |
|---|---|---|---|
| Dedicated internet access | Internet at a committed rate, with a service level | Sites where the internet is the critical path, such as cloud-first offices, data centers and SD-WAN hubs | Small sites where best-efforts service is acceptable |
| Wavelength services | An optical channel between sites, run by the provider | Dark-fiber-like capacity between data centers, without running the optical layer | Sites with modest bandwidth needs |
| SD-WAN and managed WAN | An overlay that steers traffic across every transport a site has | Many sites on mixed transports, run under one set of policies | A single site on a single circuit |
| Ethernet private line and WAN | Point-to-point or multipoint Ethernet at a committed rate | Fixed links between offices, plants and data centers that need a committed rate and a service level | A site whose traffic is almost all bound for the internet or the cloud |
| Business broadband | Best-efforts internet, usually at a lower price | Small sites, and a second, diverse path for larger ones | A site that needs a committed rate |
| MPLS and private IP networks | A private IP network across one provider's backbone | Traffic that depends on predictable performance and the provider's class of service | Traffic headed mostly to the internet and the cloud |
| Cloud connectivity | A private connection into a cloud provider's network | Heavy data transfer, latency-sensitive workloads or compliance needs | Light cloud use that runs well over the internet |
| Fixed wireless and 5G connectivity | A radio link to the provider's network in place of a fiber build | A backup path that fails for different reasons than fiber, or a bridge while fiber is built | Traffic that can't tolerate slowdowns when the provider's cell site is busy |
| Satellite connectivity | A link through low earth orbit or geostationary satellites | Remote and temporary sites, and a path independent of cables in the ground | A site where fiber is available |
| Dark fiber | Unlit strands you light with your own equipment, under an IRU or a lease | Large, growing traffic between a few fixed sites, with a team to run the optics | A branch that needs internet access |
Where Diversity and Delivery Go Wrong
Two circuits on the invoice are not two paths in the ground. These are the points to settle before anything is ordered.
Carrier diversity is not path diversity
Two carriers can share the same fiber, conduit or building entry. One provider's own service level agreement says its carrier diversity option, a second circuit from another vendor, doesn't guarantee physical path separation. The FCC urges network operators to audit physical, logical and provider diversity periodically, so one cut can't take down circuits meant to back each other up.
A precise test for diversity
The FCC's 911 rules (47 CFR 9.19) give a useful definition: circuits are physically diverse only if no single point of failure takes down both, and circuits that share a fiber cable or a circuit board don't qualify. Write that test into the order, and ask for route evidence before you sign.
Diversity that drifts
Networks change after installation. A 2006 industry diversity assurance initiative found carriers can't easily give periodic assurance that circuits engineered apart stay apart. Ask how the provider will tell you when a route changes.
The building entry
Circuits that enter a building through the same conduit can fail together. Riser and conduit rights usually sit with the landlord, so settle access and a second entry point before an install date depends on them.
Off-net means someone else's network
In one provider's terms, off-net means a site outside its own footprint, served by a third party. In those terms, off-net traffic follows the third party's policies, maintenance follows its rules and may come without notice, and small bandwidth steps are generally unavailable. Ask whose network actually reaches the building.
Cloud on-ramps with one point of failure
The large cloud providers' own resiliency guidance calls for connections in more than one location, over different telecom providers. The Cloud connectivity page covers the designs.
Billing that starts before you accept
In one provider's terms, billing starts at the earliest of your confirmation, a few business days after its notice if you don't object, or first use. Test inside that window, and confirm the new circuit carries traffic before the old one is disconnected.
Throughput below the port speed
Usable throughput runs below the subscribed speed because of protocol overhead, and some providers discard traffic above the committed rate. Size the circuit for the traffic, and shape that traffic to the committed rate.
What Changes When the Network Is Bought Site by Site
For IT and network leaders: diversity you can verify
- Route evidence before signature, so you know whether two circuits are two paths or one conduit.
- Install dates and building access settled before a move depends on them.
- Your network engineers spend their time on the network itself, because TREU takes the carrier calls.
For finance: circuit terms on one calendar
- Each circuit's term and renewal date tracked, whichever carrier holds it.
- Quotes compared with surcharges and construction included.
- Portability and upgrade rights asked for at signature, so a move or upgrade need not trigger termination charges.
What to Watch For in Network Contracts
Network terms vary more by provider than most buyers expect. These clauses decide what an outage, a delay or a move will cost you.
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Install dates that aren't commitments.
Some providers give only an estimated date and promise reasonable efforts, with no breach if they miss it. Others commit to an install interval with a credit for lateness, then exclude delays from site access, special construction and slow customer paperwork. Know which one you have before you plan a move around it.
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An outage clock that starts with your ticket.
The clock often starts when you open a ticket, not when service fails, and degraded service may not count as an outage. Credits can also depend on releasing the circuit for testing and giving the provider site access.
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Credits that are capped and have to be claimed.
Credits are commonly capped and the sole remedy, with short claim windows. Some apply only to the core service charge and can't be stacked. Negotiate them at signature, knowing they are rarely your main protection.
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Chronic failure on the provider's terms.
One provider's remedy for repeated breaches lets the provider choose: move you to another underlying vendor at a higher price, release you without termination charges, or leave you on the degraded circuit without future credits. Ask for your own right to terminate for chronic failure.
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Service levels with nothing behind them.
Some providers publish response and restore objectives whose only remedy is internal escalation, and monitor only their own network. Off-net sites can carry weaker terms and shorter maintenance notice. Ask what applies to each site, in writing.
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Site commitments that need two circuits.
A higher site availability commitment may apply only when the site has two qualifying circuits, and you may not claim site and circuit credits for the same event.
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Early termination and portability.
Termination charges vary by product and can equal every remaining monthly charge for the term. Some term plans waive them when you replace a circuit with an equal or larger one between the same points, after a minimum time in service. Ask for portability and upgrade rights at signature.
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What happens at term end.
Lit circuits are usually bought on terms of a few years, and dark fiber IRUs run far longer. Read what the agreement says happens when the term ends, well before the notice date. In our experience, the work starts months before the notice date, not weeks.
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Commitments and surcharges.
Keep minimum terms short except where a build requires them, commit below expected spend, and avoid paying a shortfall and a termination charge for the same exit. Compare quotes with taxes and pass-through surcharges included, such as the Universal Service Fund charge, which changes quarterly.
This list is a starting point for your review. TREU is not a law firm. Your counsel gives the legal advice.
Where TREU Sits in a Network Purchase
See how we work-
Supplier identification
We qualify each address with the carriers that can reach it, regional, utility and municipal networks included, and find out whose fiber actually enters the building.
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Buying cycle
We put quotes on the same basis, with surcharges and construction included, check the diversity claims against route evidence and negotiate install dates, service levels, termination and portability with your legal team.
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Implementation oversight and accountability
We hold the carrier to the install date and the design you bought, confirm acceptance before the old circuit goes, and check the first invoice against the contract.
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Client and supplier lifecycle management
We track each circuit's term and renewal date, join carrier business reviews, renegotiate before notice dates and source new sites as you add them, for the life of every agreement.
The Ten Network Services
Each service page adds the technical and contract detail for that service as it is published.
- Dedicated internet access
- Wavelength services
- SD-WAN and managed WAN
- Ethernet private line and WAN
- Business broadband
- MPLS and private IP networks
- Cloud connectivity
- Fixed wireless and 5G connectivity
- Satellite connectivity
- Dark fiber
Questions Buyers Ask About Network Services
What is the difference between dedicated internet and business broadband?
Dedicated internet access comes with a committed rate and a service level, and enterprise terms are negotiated individually. Business broadband is a lower-cost, best-efforts service. In our judgment, broadband suits small sites and second paths, and dedicated internet suits sites where the internet is the critical path.
Why do network installs take so long?
A new circuit often needs construction and building access, and the provider's date may only be an estimate. Some providers promise reasonable efforts, and even committed install intervals exclude delays from site access, special construction and slow customer paperwork. Qualify each address early, and settle landlord access before the date depends on it.
Are two carriers enough for diversity?
Not on their own. Two carriers can share fiber, conduit or the building entry, and one carrier's own terms say its diversity option doesn't guarantee physical separation. Write the diversity you need into the order, ask for route evidence and ask how you will hear about route changes.
What does off-net mean in our quote?
Usually that a third party's network reaches the site, so that party's maintenance, traffic management and service limits can apply. Some providers also use the term for sites that need a full construction build. Ask which meaning the quote uses.
Are SLA credits worth negotiating?
Yes, but they are rarely your main protection. Credits are commonly capped, limited to the core charge and the sole remedy, and they have to be claimed. The bigger levers are diversity designed in from the start and your own right to terminate for chronic failure.
Can we get out of a circuit before the term ends?
Usually at a cost. Termination charges vary and can equal the remaining monthly charges for the term. Portability and upgrade rights, negotiated at signature, can let you move or upgrade a circuit without paying them.
When does fixed wireless or satellite make sense?
In our judgment, as a backup that fails for different reasons than fiber, a bridge while fiber is built, or a link for remote and temporary sites, but not in place of fiber where fiber is available. Fixed wireless can slow when the provider's cell site is busy, so check whether a wireless or satellite plan guarantees speed or latency at all.
Does TREU monitor our circuits or claim our credits?
No. We are accountable through installation, acceptance and the first invoice, and again at business reviews and renewals. Your carrier is the first call for a service issue, though we can help in certain cases. For ongoing invoice audit, usage tracking and disputes, we source a specialist TEM provider.