TCP 归档 - 夜莺博客

标签：TCP

Wireshark TCP: Retransmission vs Out-of-Order vs Loss

Wireshark TCP: Retransmission vs Out-of-Order vs Loss

Wireshark labels retransmissions and out-of-order packets as interpretations, not facts. Use sequence ranges, SACK blocks and capture points to find t

admin admin 2026-09-12
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MTU, MSS and PMTUD: Fixing Black-Hole Connections

MTU, MSS and PMTUD: Fixing Black-Hole Connections

Diagnose MTU black holes: how MSS is derived, why PMTUD fails, when to clamp TCP MSS on routers and firewalls, and how to verify per-interface MTU.

admin admin 2026-09-11
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