The Fast Way to Sweden – BGP Routing Experiments
2 days ago
- #Network Optimization
- #BGP Routing
- #IPv6 Performance
- Ping times from Helsinki to a Stockholm VPS were unexpectedly high, showing varied performance across ISPs and protocols.
- IPv6 generally offered lower latency compared to IPv4, with notable improvements in connections to Tallinn.
- Route analysis revealed circuitous paths, including a Helsinki-Moscow-Stockholm route via Hetzner.
- Using BGP communities to restrict route announcements to specific peers reduced ping times significantly.
- Implementing 'Do not export out of metro' community lowered average RTT from ~40ms to ~8ms for fixed connections.
- The experiment highlighted the importance of controlling prefix announcements in anycast networks for optimal routing.