Abstract: CN2 and CN2 GIA are common line slogans when renting out of the country VPS or dedicated server ❚CN2 is China Telecom's second-generation backbone carrier network, AS number 4809, parallel to 163 backbone network AS 4134 CN2 GT belongs to mid-end Transit products, entering into Mainland China often turns back to 163; CN2 GIA , belonging to high-end connectivity products, exports average inbound CN2 backbones. This article focuses on developing, testing and building station scenarios for foreign trade sites, compiling comparison tables, verification methods, late peak test routes, common error zones internet 21 description and route selection, help determine whether it makes money
Core Conclusion: If you are deploying a foreign trade website, developing test services or accessing portals oriented towards Mainland China , the difference between CN2 GT and CN2 GIA is mainly reflected in routing, late peak stability, price versus mobile plan description. When budget allows, priority confirmation of whether return route is CN2 GIA ; when budget limits allow, CN2 GT , or quality 163 direct connection may also be available.
What is it?
- CN2 (ChinaNet Next Carrying Network) is the second-generation backbone carrier network of China's telecommunications construction, with AS number 4809.
- 163 The AS 4134 backbone network is parallel to the CN2 and typically has a large capacity, many users and more obvious congestion.
- The CN2 network has been redesigned, with a relatively large capacity and is geared towards the grocery business.
- Access lines from data center to China Telecom outside the country are commonly divided into two grades: CN2 GT and CN2 GIA depending on their quality.
- This article discusses access quality in the Mainland China direction; if your users are primarily from other networks or regions, CN2 relevance and experience need to be evaluated separately.
Comparison table between CN2 GT and CN2 GIA
| Projects | CN2 GT (Global Transit) This is a list of airlines currently operating in Pakistan. | CN2 GIA (Global Access to the internet ) |
|---|---|---|
| Location | Mid-range Transit products, with the international segment moving to CN2 | Access to high-end products, prioritizing CN2 throughout the process |
| Domestic sections | After entering Mainland China , always turn back to 163 bones | CN2 skeleton (both entrance and exit) |
| Late highs | Bone congestion may decelerate, packet loss | Less congestion, more stability |
| Typical latency (to the direction of Mainland China , for reference only) | data center is typically 10 to 40 ms higher than GIA | Hong Kong about 10 to 50ms, Japan about 40 to 80ms, and United States about 140 to 180ms |
| The Price | Lower, common in low-priced years mobile plan ; specific native currency prices and billing cycles not disclosed | Significantly more expensive, bandwidth is priced at several times the GT unit price; specific native currency prices and billing cycles are not disclosed. |
| Suitable for the Scenario | Budget-sensitive, with no extreme requirements for late peak stability stations; development testing and foreign trade operations | More responsive to the Mainland China directional access experience and willing to pay a premium for more stable backbone paths |
| Primary risks | After turning back to section 163, congestion may fluctuate | mobile plan Serious oversold, data center Internet bandwidth Inadequate or affected by peer neighbors may also slow down |
The latency value is a common range for community public testing (public information as of 2026-10), which actually measures each data center against your network.
How to Choose
- Step one: Identify the business direction.
If the main access comes from Mainland China direction, then only CN2 GT and CN2 GIA are of comparative value; if users come primarily from other networks, don't just look at CN2 slogans.
- Step 2: See the route map.
Tested with mtr or traceroute to Mainland China direction, the path shows 59.43.x.x segment indicating CN2 skeleton is gone; only 202.97.x. x appears as normal 163。
- Step 3: Differential testing
Different routes may be taken for the departure and arrival times, with late peaks (between 20:00-23:00 Beijing time) being more of a reference value.
- Step 4: Divide the list into one-way and two-way.
Some merchants only guarantee return route GIA (( return route is more important for visitors to the construction site), read the description of mobile plan before buying, do not judge by the title alone.
- Step 5: Check the price and billing cycle.
The original text gives only a relative description: GT is lower, commonly paid in low-priced years mobile plan ; GIA is significantly more expensive and the unit price of bandwidth is about several times that of GT. Specific native currency prices and billing cycles should be based on the merchant page .
- Step 6: Judge the premium by use.
GIA can be considered when scenarios such as foreign trade websites, customer back-end and content distribution/development testing are more sensitive to stable connectivity; GT or quality 163 direct connection may be evaluated for temporary tests, low frequency access, budget priorities.
Notes and notes
- "CN2" is not the same as "to Mainland China must be fast".
The location of data center , the connectivity to bandwidth , and your neighbors on the same network will all affect your experience.
- GIA also has congestion.
Low prices GIA mobile plan If overselling is severe, the late peak will also be slow.
- Connected and mobile users do not go to CN2 。
CN2 is a network of telecommunications, mobile users access the same data center usually go CMI ((Mobile International), experience needs to be evaluated separately.
- Don't just look at the propaganda.
Whether or not mobile plan spells out GT, GIA, return route , bidirectional, position of data center , upper limit of bandwidth has more reference value than simply appearing "CN2".
- Don't take online advertising for granted.
The actual experience is influenced by the carrier network, target data center , access times and business load. Official mobile plan descriptions and test results should be used as a reference.
FAQ and
CN2 GIA must be faster than CN2 GT ?
Not necessarily. In the case of data center , GIA is typically more stable at late peak times, and GT may be 10~40ms higher than GIA; but data center 's location, connectivity to bandwidth , synchronous neighbors, or oversold levels can all affect the experience.
How do you judge the credibility of commercial propaganda?
Test with mtr or traceroute to Mainland China direction, see if 59.43.x.x network segment appears in the path; only 202.97.x. x is described as normal 163. ❚ both destination and return route should be measured, late peak Beijing time 20:00-23:00 each test has more reference value。
Some merchants only guarantee return route GIA, is it worth buying?
For visitors to the construction site, return route is more important. But before you buy, be sure to read the description of mobile plan : it's a one-way GIA return route , or both exits and entrances go through CN2 skeleton ((both directions)). Don't just look at the title。
Is CN2 also suitable for connected, mobile users?
CN2 is the telecommunications backbone network, connectivity and mobile users do not necessarily go to CN2. Mobile user access also data center usually goes CMI ((Mobile International), experience needs a separate evaluation.
Do you want to stop raising money for GIA?
If the business is oriented towards Mainland China and sensitive to late-peak stability, consideration may be given; if budgetary constraints are present, GT or premium 163 direct connections may also be available.
Links within the site
- How to Choose a Line: CN2 GIA , GT Difference from 163
- Japan VPS Return to the country between latency and data center
- Related station readings: United States VPS dedicated server bandwidth with route instructions
- How to measure peak speed at night in VPS abroad
- dedicated server and VPS Rental issues
Update: 10-05-2026; confirmation of information for 5-10-2026.
Image alt text: Outbound data center in flat vector style with network line diagrams, containing the data center , server , microchip , maps, routing nodes, CN2 GT and CN2 GIA comparison tables, 163 backbone grid, late peak test clock and selection card elements.
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