Server packet loss is a manifestation of network instability. It is a phenomenon that when we use ping to inquire about the destination station, the data packet is lost in the channel due to various reasons. Using the Ping command, you can know whether the server network has packet loss, and the high or low ping value and whether there will be packet loss have become the standard for judging whether the server is stable. Overseas BGP cloud servers have excellent performance in network attacks, traffic protection and other security aspects. However, no matter which service provider, there will still be some packet loss. After understanding the reasons for packet loss, we will summarize several of the most common situations that cause server packet loss. They are server software or applications causing system resource abnormalities, system operation status exceeding normal levels, and network line abnormalities. Overseas server packet loss is very common. Generally, the server is attacked, causing the server to crash, that is, the server network fluctuates. Network fluctuations or packet loss on the server are a common phenomenon for us. When the ping time is long, sometimes packet loss will be found, or such a phenomenon will be found when observing for a long time. Generally, this is an unavoidable phenomenon. Especially for overseas servers. The probability of occurrence will be higher. (Computer room network, transit network and local network) As long as one of them fails, the server packet loss will occur. The server has serious packet loss. The normal server packet loss rate is 0%. If the packet loss rate is higher than 1%, it will be stuck.
　　1. Physical link problem
　　First of all, the reason for the packet loss of overseas BGP cloud servers may be related to the physical link. During the routing process, the attacked traffic may pass through multiple nodes. If one of the nodes has a problem, it may cause packet loss. For example, sometimes an intermediate node fails, which will cause the node to lose or delay the data packet when sending it, resulting in high-defense server packet loss.
　　2. Firewall restriction
　　Another reason for BGP cloud server packet loss is firewall restriction. If the firewall is not set correctly, when performing attack protection, the firewall sometimes considers certain specific traffic as a threat and intercepts it, which may cause the data packet to be blocked or filtered, resulting in loss. At this time, it is recommended to modify the firewall policy to avoid the impact caused by misinterception.
　　3. Server software problem
　　In addition to physical link and firewall problems, BGP cloud server packet loss may also be related to server software problems. When performing attack protection, the server software may run abnormally, resulting in packet loss. We can try to restart the server software or upgrade the server software version to solve this problem.  
　　4. Server load is too high
　　When performing high-traffic protection, the bgp cloud server may be affected by high pressure, resulting in packet loss. Especially when suffering from DDoS attacks, the bgp server often faces countless IP addresses attacked by cutting-edge network tools, which leads to a large amount of traffic, even exceeding the maximum traffic pressure that the server can withstand, resulting in network packet loss.
　　5. System performance issues
　　Server system performance may also cause bgp cloud server packet loss. For example, the server system resources are limited. If the server hardware fails and it is difficult to withstand the pressure of the attack protection process, packet loss will occur. At this time, we can try to upgrade the server configuration or optimize the server application to improve system performance and solve the packet loss problem.
　　6. Network congestion
　　The last reason is network congestion. If the network traffic is too large, the network may be congested, resulting in packet loss. It may be caused by insufficient network bandwidth, network congestion, or other network problems, which is also one of the reasons for packet loss. At this point, we can choose a higher bandwidth or adjust the network environment to avoid the possibility of congestion.
　　7. Server hacked
　　If the server is hacked or poisoned, the server will be used by hackers to frequently send data packets, causing the bandwidth to exceed the upper limit. At this time, when testing the network, packet loss will occur. In serious cases, the server remote terminal may not be able to log in. Therefore, the server needs to be maintained during use and a security strategy should be made to prevent the server from being hacked and used.
　　There are many reasons for packet loss in overseas bgp cloud servers. JTTI high-defense cloud servers are specially designed for cloud cleaning and filtering of traffic-type DDoS attacks and resource-exhaustion-type DDoS attacks (CC attacks). In order to ensure network security and stability, we need to find and solve these problems as soon as possible to ensure that the network is unobstructed. Provide users with professional, reliable, accurate and effective DDoS security protection to maximize the protection of users' network security and the normal and stable operation of their business.