Уровень 0 · материалов: 3
В кластер входят документы, посвященные техническим проблемам передачи данных, связанным с размером пакетов и алгоритмами TCP, и не входят документы общего описания сетевого оборудования без привязки к этим механизмам.
Общие признаки: сетевые задержки, размер пакетов MTU, протокол TCP, фрагментация данных, техническая оптимизация сети
Группа выше: TCP, HTTP и транспортные протоколы
Смысл: The main idea is to explain why certain network connections hang when transferring large amounts of data despite successful handshakes, attributing this to the blocking of ICMP packets necessary for Path MTU Discovery, and providing a practical fix using Linux iptables to clamp the TCP MSS.
The article explains the 'Path MTU Discovery Black Hole' caused by blocked ICMP messages and demonstrates how to fix it using Linux iptables TCPMSS clamping.
Смысл: The main idea is to provide a comprehensive technical guide on MTU, explaining how it operates at different network layers and how to configure it on Cisco equipment to avoid connectivity issues like packet fragmentation or drops.
A technical deep-dive into MTU across OSI layers 2, 3, and 4, focusing on Cisco configuration, MPLS, and practical MTU discovery methods.
Смысл: The main idea is that certain network configurations provided by MTS cause a conflict with the TCP-RACK algorithm in Windows 10, leading to degraded upload speeds. The author demonstrates that this can be bypassed by routing traffic through a Linux kernel via WSL2.
The author identifies a TCP-RACK bug in Windows 10 causing slow upload speeds on MTS internet and provides a workaround using WSL2 and a SOCKS5 proxy.