Network & Routing

MTR/BestTrace diagnostics, line differences and test IPs

• What Are BGP, CN2, GIA, and GT? A Plain-English Guide to China Mainland Routing

  A one-read primer on BGP multi-homing and China Telecom's CN2 GT/GIA tiers—and why the route, not just the server, decides your latency and stability into mainland China.

• Server line differences and test IPs by region / product

  Line differences by region/product (HK1/HK2/LA/NCP/Japan/Taiwan/Vietnam/Cambodia/Korea) plus per-line test IPs and recommended speed-test tools

• Enable BBR: Boost TCP Throughput on High-Latency Links

  Switch your Linux server to Google's BBR congestion control to squeeze more throughput out of long-distance, lossy connections.

• Diagnosing Packet Loss and High Latency

  Measure loss and latency with ping, pinpoint the bad hop with mtr, tell local from line from remote problems, and hand support the data that actually helps.

• MTR network troubleshooting guide

  If you're not comfortable with the command line, use a ready-made tool

• Ping and traceroute: How route tracing actually works

  Use ping to check reachability and latency, use traceroute to see every hop your packets pass through, and learn where delay really comes from.

• BestTrace route tracing tool

  This tool mainly checks the network line from your local machine to a given IP (your server).

• TCP Kernel Tuning: Speeding Up High-Latency Links

  On high-latency, high-bandwidth links the bottleneck is usually undersized TCP buffers, not the wire — size them to your BDP, enable window scaling, add BBR, and you can fill the pipe.

• IPv6 Basics: Enabling, Configuring, and Common Pitfalls

  From address format to turning on IPv6 on a VPS, adding AAAA records, and dodging the usual firewall and gateway traps.

• Bandwidth, Traffic, and Peak Billing: Making Sense of Cloud Server Network Pricing

  Learn the difference between bandwidth and traffic, the bit-vs-byte conversion, and the three common billing models—fixed bandwidth, pay-as-you-go, and 95th percentile—then measure your real usage with vnstat.

• How to Pick the Right Network Route for Your Audience

  Start from where your users actually are, then measure latency and packet loss from that region with a test IP — don't trust the route's marketing name.

• Private Networking Basics: Connecting Your Servers Over an Internal Network

  Use a private network to wire your cloud servers into one internal LAN so they talk to each other faster, more securely, and without touching the public internet.

• A Practical Network Toolbox: speedtest, iperf, mtr, besttrace and More

  A cheat sheet for diagnosing server networking: measure bandwidth, spot packet loss, trace routes, and check DNS and connections — each with a one-line example.