Colorado guide
Redundant Fiber Connections Colorado
Most businesses that think they have a redundant connection do not. Here is how to check.
Buying two circuits is easy. Buying two circuits that cannot fail at the same time is the actual job, and it is where most redundancy projects quietly go wrong.
The failure looks like this. You buy a primary from one carrier and a backup from another. Both are delivered over the same physical fiber route, entering your building through the same conduit. A backhoe finds that conduit and both circuits drop together. You paid twice for one connection.
The four levels of diversity
| Level | What is separate | What still takes you down |
|---|---|---|
| Carrier diversity | Two different companies on the bill | Shared conduit, shared route, shared building entrance |
| Equipment diversity | Separate routers and handoffs | Anything upstream of your equipment |
| Path diversity | Different physical route to the building | A shared building entrance, or a shared upstream aggregation point |
| Full diversity | Different route and different building entry | Very little short of a regional event |
Carrier diversity alone is what most people buy and what most people assume is enough. It is the weakest of the four.
Questions that expose a fake second path
- Which physical entrance does each circuit use to enter the building? If the answer is the same one, stop there.
- Show me the route each circuit takes to the first aggregation point. Ask for it in writing.
- Is any part of the last mile leased from the same underlying provider? Two brands frequently ride one wholesale network.
- Where do the two paths first share infrastructure? There is always an answer. You need to know where it is.
- If we lose commercial power, what happens? Diversity in fiber does not help if both handoffs sit on the same unprotected outlet.
What actually threatens a Colorado circuit
- Wildfire. Colorado has lost fiber infrastructure to fire, and burn scars then bring flooding and debris flows that damage the same routes again.
- Canyon routes. Many mountain communities are reached through a single canyon. If every carrier's fiber runs through it, carrier diversity buys you nothing.
- Severe winter weather. Aerial plant, access for repair crews, and commercial power all come under pressure in the same storm.
- Construction. The Front Range is building constantly, and the most common cause of a cut fiber anywhere is a backhoe belonging to somebody else's project.
- Shared building entrances. Two carriers frequently enter the same commercial building through the same conduit, which quietly undoes the diversity you paid for.
Designs that work, cheapest first
| Design | Roughly what it costs | Honest assessment |
|---|---|---|
| Single circuit | Baseline | Fine for sites where a day offline is survivable. Be honest about whether yours is. |
| Primary fiber plus broadband backup | Baseline plus 10 to 25 percent | The best value in the whole list. Survives most single failures. |
| Primary fiber plus fixed wireless backup | Baseline plus 20 to 40 percent | Genuinely independent of anything buried. Strong where a second fiber build is expensive. |
| Two fiber circuits, two carriers, verified diverse paths | Roughly double | The real answer for sites that cannot go down. Verify the paths or you have not bought it. |
| Diverse fiber plus wireless third path | Double plus | For public safety, healthcare and anything where downtime is a safety issue. |
The part people skip
A failover path that has never been tested is a hypothesis. Pull the primary circuit during a maintenance window and watch what actually happens. Time it.
The usual discoveries are that failover takes far longer than expected, that something critical was bound to the primary circuit's IP addresses, or that the backup works but is too small to carry the real load. All three are much better found on a Tuesday morning than during an outage.
Related Colorado guides
Common questions
Is two internet circuits from two carriers enough?
Not by itself. If both ride the same physical route or enter the building through the same conduit, one incident takes out both. Carrier diversity without path diversity is the most common expensive mistake in this area.
What is the cheapest real redundancy in Colorado?
A fiber primary with a broadband or fixed wireless secondary on a genuinely different physical path. It costs far less than a second dedicated circuit and it survives the failures that actually happen.
How do I prove diversity to an auditor or insurer?
Ask each carrier for a written statement of the physical entry point and route, keep it with the contract, and keep dated records of your failover tests. Verbal assurance is not evidence.
Get real Colorado numbers for your address
Everything above is general. The quotes are specific. They cost nothing and take a few days.