Summary: This article explains the definitions of data center and return route routes, how they affect your experience on a construction site, and how to judge their quality in different network environments. The core is that routing affects you when managing server , but it also affects the speed at which visitors load web pages or download content. It gives directional comparison tables, IP segment identification methods, test paths for unrestricted access to server and warns against viewing only one commercial flyer or measuring directions.
Key findings
data center routes are two directions of the same communication, but the paths can be completely different. For legitimate uses such as construction sites, foreign trade operations and development testing, return route quality often determines visitor experience: web page loading, image downloading, whether or not forms respond smoothly, more depends on the direction in which server is sent to visitors.
What is the distance to and from return route ?
| Direction | Meaning | Effects on the construction site | Who cares more? |
|---|---|---|---|
| Going | From the visitor to server in direction traffic | Experiences such as file uploading, remote operation server , submitting forms and SSH management | Administrators, developers and operators |
| return route and | Directions from server to visitor traffic | The speed at which visitors load web pages, download content and view images and videos is the most important aspect of a website. | Website visitors, foreign trade customers and search engine capture end |
A common misconception is that the traceroute or mtr seen when typing server from one's own computer directly reflects the overall quality of the route. This path mainly reflects where it goes, not necessarily representing return route . Going to CN2 GIA and return route may go around United States back to the mainland. The two directions can take completely different routes, so they should be looked at separately when judging data center lines.
How to choose: how do you decide if the data center line is suitable for a station?
See where your target visitors are coming from
| Sources of access | Priority areas | Need to be checked |
|---|---|---|
| Mainland China residents visiting the website | server return route entering the continent of quality | Is it just to advertise the CN2 GIA route, or is the return route a detour? |
| Non-residents of Mainland China visiting the site | server to the local path of carrier | Whether there is consistency across regions depending on a single test site |
| India Residents visiting the site | server to India Local quality of the carrier | Is there a detour, is latency stable? |
| Foreign trade business customers visit official website | Feedback after submitting images, product pages and forms | Whether there is a noticeable difference under different carrier networks |
With server permissions: from side to side
- After logging in to server , test the target network using traceroute or mtr.
- The test target selects the network where real visitors are located, such as different carrier output IPs, CDN nodes or user-common networks.
- Record the number of jumps, changes in each jump and whether any detours occurred.
- The results of server 's lateral outward measurements are judged separately from the local distance to server .
Without server permissions: cross-validate with a third party visitor experience
| The Method | What to See | Benefits | Limitations |
|---|---|---|---|
| Traceroute is a multi-site tracing tool provided by the webmaster platform. | Routing multiple nodes to the target IP | Not relying on a single network | Tool nodes may not cover real visitors |
| Please help other carrier friends. | Open speed under real user networks | Closer to the visitor experience | Less sample, more subjective |
| A first-hand look at the visitor experience | Open sites on different carrier networks and measure download speeds | More convincing than the route | Continuous recording required, affected by page size, CDN , cache |
Key information on the path
| IP prefixed | Originally marked carrier | Used |
|---|---|---|
| 202.97.x.x and | Telecommunications | Identify features of the skeletal network |
| (See also footnote.) | Telecommunications and CN2 | Identify features of the skeletal network |
| 219.158.x.x, and | Connected 4837 | Identify features of the skeletal network |
| 223.120.x.x | Moving the CMI | Identify features of the skeletal network |
The IP network segment is merely a routing observation clue, and cannot prove the validity of mobile plan propaganda on its own. To truly judge the line, it must be combined with homogeneous testing, multiple access points, long-term fluctuations and visitor experience.
Counting jumps and looking at mutations
The lower the number of path jumps, the better; a particular latency jump may be abruptly exaggerated, often indicating roundabouts, backbone grid congestion or unstable test points. Observe not only at the beginning and end but also to see if there is an abnormal magnification in the intermediate jumps.
Note: List of common potholes and self-checks
- It's easy to draw the wrong conclusion from one direction alone.
- From the machine to server traceroute/mtr, the path shown is going; for measurement of return route , it is necessary to measure outwards from the side of server .
- If you don't have access to server , use the multi-site traceroute search tool provided by various webmasters, or ask your friends from different carrier s for help.
- A more general approach is to look directly at the visitor experience: opening sites on different carrier networks and measuring download speeds are much more convincing than just looking at routes.
- The test data is time-effective, and a short-term route looks good but does not represent long-term stability.
- This article is not about a single merchant mobile plan , prices, line commitments, bandwidth caps and data center locations are all undisclosed.
Self-checking list
| Checks and balances | Through the Signal | Warning signs |
|---|---|---|
| return route direction | server Lateral outward measurement path is stable | return route around United States back to the mainland |
| Direction of travel | Uploading, SSH and remote management are smooth. | Admin latency High but page not open |
| See also carrier . | Telecommunications, connectivity and mobility are not much different. | Either carrier is obviously slow or packet loss |
| Features of the path | Less jumps, latency changes slowly | Someone jumped latency out of the blue |
| What the Businessman Said | Clarify the test method | Just put a link to screenshot and you've got all the links. |
FAQ and
1. traceroute is the destination or return route ?
The path from the own network to server traceroute/mtr is seen mainly as a journey. To judge the quality of return route , it is necessary to test the targeted network from the side of server , or in combination with the visitor experience.
2.The merchant says the line is CN2 GIA , why so slow?
CN2 GIA may only represent the performance of a certain direction or a certain path. The route to and from return route can take completely different routes, business propaganda often says that only good directions are chosen, so it is necessary to test both the route and the return route .
3. How to judge a line without server permissions?
It is possible to use the traceroute tool provided by the webmaster platform, or you can ask your friends from different carrier s for help in measuring. More generally, it is necessary to directly see the visitor experience, open sites on different networks and measure download speeds.
4. Does 202.97.x.x have to be telegraph 163?
The original labels 202.97.x.x as telecom 163, 59.43.x. x for telecom CN2, 219.158.x.X for interconnect 4837, 223.120.x. X for mobile CMI ❚ Actual routing may be complicated, the IP segment can only serve as an observation clue and cannot independently prove mobile plan type
5. How often should the test be repeated?
No fixed answer. Repeated observations are recommended at different times and under different carrier networks, with special attention to peak operations, route changes, and long-term stability.
Links within the site
- How to choose dedicated server : bandwidth , IP, and line
- Foreign trade website server What is the route: return route to and from CDN
- Telecommunications CN2, Unicom 4837, Mobile CMI: What to think of the IP segment
- Overseas VPS How does the specifications of mobile plan read: CPU , memory, bandwidth and data center
- Site manager self-checks: multiple traceroute with visitor speed
Updated with images alt text
This article was last updated on 06/22/2016.
This audio file was created from a revision of Information kernel dated 2026-06-22, and does not reflect subsequent edits to the article.
This post is part of our special coverage Africa Day.
- A two-way arrow between visitor and server , destination and return route represented as two different paths, flat vector style, no text, no brand logo, no real person.
- server , router , map lines and network nodes in a 3D scene at the same distance, displaying data center path test, no text, no branded logo, no real people.
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