simnet

This package is based on @MarcoPolo's simnet package.

A small Go library for simulating packet networks in-process. It provides drop-in net.PacketConn endpoints connected through configurable virtual links with latency and MTU constraints. Useful for testing networking code without sockets or root privileges.

• Drop-in API: implements net.PacketConn
• Realistic links: per-direction latency and MTU
• Packet queuing: priority queue for scheduled packet delivery
• Routers: perfect delivery, fixed-latency, simple firewall/NAT-like routing
• Deterministic testing: opt-in synctest-based tests for time control