https://shahrouz.net/tags/mss/ Recent content in MSS on Shahrouz - Network Engineering Blog Hugo -- 0.148.2 en-us Tue, 14 Jul 2026 00:00:00 +0000 https://shahrouz.net/blog/tcp-deep-dive-from-packets-to-byte-streams-mtu-mss-and-proxy-chaining/ Tue, 14 Jul 2026 00:00:00 +0000 https://shahrouz.net/blog/tcp-deep-dive-from-packets-to-byte-streams-mtu-mss-and-proxy-chaining/ If you come from a packet-forwarding background, MTU and MSS behave nothing like you expect once traffic enters a proxy chain. There is no fragmentation — only re-segmentation of a continuous byte stream. This deep dive untangles the mental model mismatch and explains why manually tuning MSS on intermediate proxies rarely does what you think it does.