MTU / MSS / Protocol Overhead Analyzer
Estimate effective MSS, payload efficiency, and fragmentation risk for IP and tunnel overhead.
Parameters
Results
Assumptions
- 基础 IPv4 首部按 20 字节、IPv6 按 40 字节、TCP 按 20 字节、UDP 按 8 字节计算。
Important notes
- TCP 选项、IPsec、GRE、VXLAN 等实际开销必须计入额外封装。
Standards and sources
Verified: 2026-09-05