LANforge ICE is a network emulator with an emphasis on virtual routing, jitter, corruption and delay. Projects have used it to emulate satellite link, cable and modem connections, and high-speed (10Gbit) wan emulation. You can use a Java GUI to build your virtual networks and generate very detailed reports of the traffic flow. The LANforge products also provide traffic generation features: frame, ethernet, layer-3 and stateful traffic (NFS, http). Recent editions for LANforge have sophisticated WiFi testing features as well.

对于macOS，有Network Link Conditioner可以模拟可配置的带宽、延迟和丢包。它包含在Xcode的附加工具包中。

查尔斯

我遇到了Charles web调试代理应用程序，并在模拟网络延迟方面取得了巨大的成功。它可以在Windows、Mac和Linux上运行。

Bandwidth throttle / Bandwidth simulator Charles can be used to adjust the bandwidth and latency of your Internet connection. This enables you to simulate modem conditions using your high-speed connection. The bandwidth may be throttled to any arbitrary bytes per second. This enables any connection speed to be simulated. The latency may also be set to any arbitrary number of milliseconds. The latency delay simulates the latency experienced on slower connections, that is the delay between making a request and the request being received at the other end.

虚拟网

您也可以使用vmware来运行BSD或Linux，并尝试本文(DummyNet)或本文。

我想tc可以在基于UNIX的平台上完成这项工作。

tc用于配置Linux内核中的Traffic Control http://lartc.org/manpages/tc.txt

使用Fiddler在Windows上找到了这个(免费解决方案) http://www.logic-worx.com/index.php/tools-and-apps/fiddler-connection-simulator/

尝试WANem

WANem是一个广域网模拟器，旨在在局域网环境下的应用程序开发/测试期间提供广域网/Internet的真实体验。