International Tengxun Cloud Account Purchase: Accelerate with Tengxun Cloud ANYCAST Public Network to Allow US Users Silky Access to Domestic Web Services

For offshore businesses or multinational teams, network latency and packet loss are always nightmares that cannot be avoided.

Suppose you deploy the core Web service in Tengxun Cloud's domestic computer room (such as Guangzhou or Beijing). When domestic users visit, the experience is as smooth as silk. But if a user in New York tries to open your website, his web request needs to span half the world.

In this long cross-border journey, data packets have to pass through complex public networks, forward through countless international public network routing nodes, and squeeze through frequently congested international export optical cables. It shows that:

Delay soared to more than 200ms, frequent packet loss, web page loading stuck, and even direct connection timeout.

The first reaction of many teams is to buy another server in the United States to build a mirror station. But this comes with significant data synchronization costs, architectural complexity, and operational overhead.

In fact, the use of tengxunyun

Anycast public network acceleration (anycast public network IP)

Technology, you don't need to change a line of code on the domestic server, you can let the United States users on the other side of the ocean also get a nearly localized silky access experience. Today's tutorial does not talk about the empty PPT concept, but directly takes you to the actual combat landing of this transnational acceleration plan.

Core Principle: How Does Anycast Accelerate?

Before we do the configuration, let's understand its underlying logic in plain English. The common public network IP is "single sign-on". The IP you bought in Guangzhou has its physical destination in Guangzhou. To access it, U.S. users must take the public network high-latency route all the way to Guangzhou.

The Anycast (anycast) IP is "the same name for the whole network, and the nearest network".

When you open the Anycast network acceleration of tengxunyun, tengxunyun will give you a special IP address. This IP will be broadcast to dozens of backbone nodes (including Washington, Silicon Valley, Dallas, etc.) around the world at the same time through the Border Gateway Protocol (BGP).

Step 1 (Nearby Access): When a user in new york, USA initiates a request, a local operator in the United States (such as AT&T) will send the traffic directly to the Tengxun Cloud's US local edge computer room nearest to the user through BGP routing protocol (it may only be a few kilometers, with a delay of a few milliseconds).

Step 2 (Intranet Crazy): After the traffic enters Tengxun Cloud's US computer room, it will no longer go through the congested public network, but will directly cut into the global high-bandwidth high-speed intranet dedicated line built by Tengxun Cloud. The data packets are soaring all the way across the Pacific Ocean and directly delivered to your domestic Web server.

Simply put:

The originally long and uncontrollable "cross-national public network long-distance running" has been turned into "local public network dash Tencent cloud intranet dedicated line flashing".

Phase 1: Configure Anycast public network acceleration in Tengxun cloud console

The configuration of the Anycast is very elegant. It is based on a special "Elastic Public Network IP(EIP)" in Tencent Cloud"

form exists.

1. Apply for Anycast EIP

Log in to the Tengxun cloud console, enter the elastic public network IP in the search bar at the top and enter.

In the left-side menu, confirm that the region you selected is the domestic region where your web server is located (for example, Guangzhou).

Click the Apply button in the upper right corner of the page.

On the application page, the most critical parameter is the IP address type: the default is "regular EIP", and Anycast EIP (anycast elastic public network IP) must be checked here. Acceleration Region: Select Global Acceleration (make sure the North America/US region is covered). Bandwidth cap: According to your business volume setting, it is recommended to give 10Mbps-50Mbps at the initial stage for sea-going business, which is more cost-effective to charge by traffic.

Click OK, and the system will generate a Anycast IP in the form of 123.xxx. xxx.xxx for you in seconds.

2. Bind to your domestic back-end gateway.

With this "global flash ball", we need to hang it in front of your domestic server. Anycast EIP supports binding multiple backend instances, the most recommended method is to bind

Load Balancing (CLB)

Top:

On the EIP list page, find the Anycast EIP you just applied.

Click Bind in the Actions column on the right.

Select a load balancing instance for the instance type (if you only have a single server, you can also directly select the cloud server CVM, but the CLB architecture is more flexible).

Select the CLB instance of your domestic running Web service and click OK.

After the binding is completed, all traffic sent to this Anycast IP will be captured by Tengxun Cloud Global Backbone Network and seamlessly rolled back to your domestic load balancing.

The second stage: modify DNS resolution (so that American users have no sense of switching)

After the IP is configured, we cannot directly change the traffic of domestic users across the country, because the cost of Anycast dedicated line is higher than that of ordinary public network. Best practices are:

Domestic users continue to use the regular public network, and U.S./overseas users are dynamically scheduled to the Anycast link.

We can make use of

Regional distribution function of intelligent DNS

to achieve:

Log on to your domain name resolution console (such as Tencent Cloud DNS Resolution DNSPod).

Find the domain name for your Web service (e. g. www.yourcustom.com).

Modify or add an analysis record: the first record (domestic default): the host record is www, the line type is default (or mainland China), and the record value is the original common public network IP of your domestic server. The second record (overseas acceleration): the host record is also filled with www, the line type is selected overseas-> north america-> us (or directly selected overseas network), and the record value is filled with the Anycast EI you just applied.

P address.

Save the configuration.

After the configuration is completed, DNS returns ordinary IP to users in the mainland when they access it. When the US community initiates resolution, DNS will accurately throw the Anycast IP to him. Fully automated operation, the user does not need to perceive.

The third stage: safety and architecture optimization suggestions before going online

Once the cross-border link is opened, there are several invisible pits that you must block on the first day of online:

1. Four-layer defense (DDoS protection)

Anycast IP is broadcast all over the world, which is equivalent to opening your domestic server door directly to the streets of the United States. Once you encounter a DDoS attack from an overseas hacker, the traffic will instantly blow up your domestic source station along the dedicated line.

Solution: After applying for Anycast EIP, be sure to bind Tengxun Cloud's DDoS protection (Dayu) service in the console so that attack traffic can be directly cleaned at overseas edge nodes and dirty traffic cannot enter the intranet dedicated line.

2. cooperate with Nginx to open HTTP/2 and long connection (Keep-Alive)

Although Anycast solves the problem of cross-border routing congestion, the physical delay of the transmission of light speed in optical fiber (about

120ms

) cannot be eliminated. If your web page needs to be loaded back and forth dozens of requests (multiple handshakes), it will still feel slow.

Solution: HTTP/2 must be turned on on Nginx or application server in your country. The multiplexing capability of HTTP/2 allows foreign browsers to concurrently transfer dozens of files over the same TCP connection. At the same time, adjust the keepalive_timeout to more than 65 seconds to reduce the handshake overhead of frequent connection.

The effect is visible to the naked eye contrast

After going online, you can let your local friends in the United States or use professional global network speed measurement tools (such as Ping.pe or webmaster tools overseas nodes) for testing.

Before configuration: ping the public network IP of the domestic host from the United States and West (such as San Francisco), the delay is generally between 180ms and 260ms, and the jitter is extremely severe, often accompanied by a packet loss rate of 2%-5%. It takes more than 5 seconds to open a web page with a map.

After configuration: ping the same domain name, the delay will be stable at about 120ms - 130ms (this is almost the physical limit of trans-Pacific fiber), the most important thing is that the packet loss rate is directly zero (0% packet loss), and the curve is straight like electrocardiogram. The loading speed of the web page is reduced directly to less than 1.5 seconds.

Summary

Using tengxunyun Anycast public network to speed up sailing, the core is the eight-character policy:

Border access, intranet generation

.

It uses the most lightweight structural changes to directly Bai Piao's priceless global dedicated line network. You don't have to go overseas and bother to maintain another database, you don't have to do the complexity.

The application of refactoring, as long

Buy any broadcast IP, hang up domestic CLB, and change to smart DNS

These three steps will allow users on the other side of the ocean to cross the mountains and rivers and enjoy your mature Web services in a silky way.