comcast
A tool to simulate common network problems like latency, bandwidth restrictions, and packet loss for testing distributed systems.
What is comcast?
Comcast is a command-line tool that simulates poor network conditions—such as latency, bandwidth restrictions, and packet loss—to help developers test and build more resilient distributed systems. It wraps system-level networking tools like `iptables` and `tc` on Linux or `pfctl` and `ipfw` on BSD/OSX to inject controlled failures into network traffic.
Developers, DevOps engineers, and system administrators working on distributed systems who need to test application behavior under realistic network impairments.
It provides a simple, cross-platform CLI to simulate real-world network issues without manual configuration of low-level tools, making resilience testing accessible and repeatable.
Overview
Simulating shitty network connections so you can build better systems.
Use Cases
Best For
- Testing distributed system resilience under network latency
- Simulating bandwidth restrictions for performance benchmarking
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