Understanding Your Internet Route
When a customer says, "I have a very fast Internet connection," that is useful information — but it does not tell us everything about the connection between their home and a digiSTREAM SHOUTcast server.
The Internet is made up of many interconnected networks. Your connection can cross several routers, providers, and network segments before it reaches the server. Understanding that journey makes tools such as TRACERT much easier to understand.
The Big Picture
A typical connection might look something like this:
The exact path varies. There is no single universal route from a particular home to a particular server.
Is There a Direct Connection From Your Home to the Server?
Usually, no. Your computer does not normally have a dedicated cable or private Internet path running directly from your home to the digiSTREAM server.
Your ISP connects your home to its network. From there, traffic may pass through additional routers and other networks before reaching the destination.
That is why the statement "My Internet works perfectly" does not automatically prove that every route to every Internet server is working perfectly.
What Is a "Hop"?
A hop is a routing step along the path. In a TRACERT result, each hop generally represents a router or routing device that responded to the traceroute probe.
A hop is not necessarily another SHOUTcast server, and it does not mean that another company is hosting or handling your radio station. It is simply part of the network path.
Who Chooses the Route?
No single company controls the entire path.
Your ISP controls routing within its own network and how it connects to other networks. Other providers control their own networks. The data center controls its network and advertises how its IP networks can be reached.
Each router forwards traffic according to its routing information. At the larger Internet level, networks exchange reachability information using routing protocols such as BGP (Border Gateway Protocol).
Where BGP Fits In
BGP helps independent networks tell one another which IP networks they can reach. Routing policy, available connections, failures, and other conditions can influence which path a network selects.
This is one reason the path to a server can change over time. The server did not necessarily move; the routing between networks may have changed.
What Happens During Congestion?
This is another area where Internet routing is often misunderstood.
A router does not normally look at every packet and say, "Hop 5 is busy, so I will instantly send this packet through Hop 7 instead."
If a link or router becomes busy, packets may be queued, delayed, or dropped when available buffers are exhausted. A routing change can occur when routes become unavailable or routing information changes, but ordinary congestion does not guarantee an immediate alternate route for every packet.
Routing is more complicated than a simple traffic detour system. Different networks use routing policies and routing information to select paths, and changes can take time to propagate.
For troubleshooting, this means that a problem somewhere between your home and the server can affect your stream even when your home connection and the server itself are both operating normally.
"But I Have Gigabit Internet!"
We hear this frequently — and having fast Internet is certainly a good thing.
However, an advertised 1 Gbps or 2 Gbps Internet service does not mean that you have a dedicated 1 Gbps connection all the way to every server on the Internet.
Your speed test may show excellent performance because the test server is nearby or is reached through a favorable route. A completely different route to a SHOUTcast server can have different latency, congestion, packet loss, or routing characteristics.
1 Gbps at your home does not create a dedicated 1 Gbps pipe to the SHOUTcast server.
Bandwidth Is Not the Same as Latency
A fast connection and a low-latency connection are related to networking performance, but they are not the same measurement.
| Term | What it means |
|---|---|
| Bandwidth | How much data a connection can transfer over time. |
| Latency | How long it takes data to travel between endpoints and return, depending on the test. |
| Packet loss | Packets that fail to reach their destination and must be recovered or are simply lost. |
| Congestion | More traffic competing for available network resources than the path can comfortably handle at that moment. |
A listener can therefore have excellent download bandwidth and still experience a problematic route to a particular server.
How TRACERT Helps
TRACERT gives us a view of the route your computer is seeing toward a destination. It can show the sequence of responding hops and the approximate response times reported by those hops.
It is useful evidence, but it is not a perfect picture of every packet. Some routers deliberately do not respond to traceroute probes, while continuing to forward normal traffic.
For that reason, * * * Request timed out at one hop does not automatically mean that hop is broken.
The dedicated TRACERT article explains how to run and interpret the test:
Read: Understanding TRACERT, Hops & Your Connection →What to Send digiSTREAM Support
If you are having trouble connecting to a digiSTREAM SHOUTcast server, we may ask for a TRACERT result. Please provide the complete output rather than only the hop that looks unusual.
A complete route lets us compare where the path starts, where it crosses other networks, whether the destination is reached, and whether a reported delay continues across later hops.