var Component=(()=>{var d=Object.create;var c=Object.defineProperty;var C=Object.getOwnPropertyDescriptor;var x=Object.getOwnPropertyNames;var h=Object.getPrototypeOf,p=Object.prototype.hasOwnProperty;var v=(r,e)=>()=>(e||r((e={exports:{}}).exports,e),e.exports),N=(r,e)=>{for(var n in e)c(r,n,{get:e[n],enumerable:!0})},a=(r,e,n,o)=>{if(e&&typeof e=="object"||typeof e=="function")for(let i of x(e))!p.call(r,i)&&i!==n&&c(r,i,{get:()=>e[i],enumerable:!(o=C(e,i))||o.enumerable});return r};var b=(r,e,n)=>(n=r!=null?d(h(r)):{},a(e||!r||!r.__esModule?c(n,"default",{value:r,enumerable:!0}):n,r)),A=r=>a(c({},"__esModule",{value:!0}),r);var s=v((y,S)=>{S.exports=_jsx_runtime});var u={};N(u,{default:()=>f,frontmatter:()=>m});var t=b(s()),m={title:"TCP \u4E3A\u4EC0\u4E48\u662F 3 \u6B21\u63E1\u624B\uFF0C4 \u6B21\u6325\u624B\uFF1F",date:"2021-08-16T09:28:26.654Z",categories:["Basic","Quick Note"],tags:["Network"],icon:"\u{1F91D}"};function l(r){let e=Object.assign({h2:"h2",a:"a",p:"p"},r.components),{Mermaid:n}=e;return n||k("Mermaid",!0),(0,t.jsxs)(t.Fragment,{children:[(0,t.jsx)(e.h2,{id:"\u4E09\u6B21\u63E1\u624B",children:(0,t.jsx)(e.a,{href:"#\u4E09\u6B21\u63E1\u624B",children:"\u4E09\u6B21\u63E1\u624B"})}),` `,(0,t.jsx)(n,{chart:`sequenceDiagram participant Client as \u5BA2\u6237\u7AEF participant Server as \u670D\u52A1\u5668 Client->>Server: SYN=1, Seq=x
\u5BA2\u6237\u7AEF\u53D1\u9001\u8BF7\u6C42\u5EFA\u7ACB\u8FDE\u63A5\u7684\u62A5\u6587
SYN\u6807\u5FD7\u4F4D\u4E3A1\uFF0C\u8868\u793A\u8BF7\u6C42\u8FDE\u63A5\uFF0CSeq\u4E3A\u521D\u59CB\u5E8F\u5217\u53F7 x Note over Server: \u670D\u52A1\u5668\u6536\u5230\u8BF7\u6C42\u540E\uFF0C\u51C6\u5907\u56DE\u590D\u786E\u8BA4 Server->>Client: SYN=1, ACK=1, Seq=y, Ack=x+1
\u670D\u52A1\u5668\u56DE\u590D\u786E\u8BA4\u6536\u5230\u7684\u62A5\u6587
SYN\u548CACK\u6807\u5FD7\u4F4D\u90FD\u4E3A1\uFF0C\u8868\u793A\u786E\u8BA4\u6536\u5230\u8BF7\u6C42\u5E76\u8BF7\u6C42\u8FDE\u63A5\uFF0C
Seq\u4E3A\u670D\u52A1\u5668\u7684\u521D\u59CB\u5E8F\u5217\u53F7 y\uFF0CAck\u4E3A\u5BA2\u6237\u7AEF\u521D\u59CB\u5E8F\u5217\u53F7 x+1 Note over Client: \u5BA2\u6237\u7AEF\u6536\u5230\u670D\u52A1\u5668\u7684\u786E\u8BA4\uFF0C\u51C6\u5907\u53D1\u9001\u786E\u8BA4 Client->>Server: ACK=1, Seq=x+1, Ack=y+1
\u5BA2\u6237\u7AEF\u53D1\u9001\u786E\u8BA4\u7684\u62A5\u6587
ACK\u6807\u5FD7\u4F4D\u4E3A1\uFF0C\u8868\u793A\u786E\u8BA4\u6536\u5230\u670D\u52A1\u5668\u7684\u786E\u8BA4\uFF0C
Seq\u4E3A\u5BA2\u6237\u7AEF\u521D\u59CB\u5E8F\u5217\u53F7 x+1\uFF0CAck\u4E3A\u670D\u52A1\u5668\u521D\u59CB\u5E8F\u5217\u53F7 y+1 Note over Server: \u670D\u52A1\u5668\u6536\u5230\u786E\u8BA4\uFF0C\u8FDE\u63A5\u5EFA\u7ACB\u5B8C\u6210 `}),` `,(0,t.jsx)(e.h2,{id:"\u56DB\u6B21\u6325\u624B",children:(0,t.jsx)(e.a,{href:"#\u56DB\u6B21\u6325\u624B",children:"\u56DB\u6B21\u6325\u624B"})}),` `,(0,t.jsx)(n,{chart:`sequenceDiagram participant Client as \u5BA2\u6237\u7AEF participant Server as \u670D\u52A1\u5668 Client->>Server: FIN=1, Seq=x
\u5BA2\u6237\u7AEF\u53D1\u9001\u5E26\u6709FIN\u6807\u5FD7\u4F4D\u7684\u62A5\u6587\u6BB5\uFF0C\u8BF7\u6C42\u5173\u95ED\u8FDE\u63A5\uFF0CSeq\u4E3A\u521D\u59CB\u5E8F\u5217\u53F7 x Note over Server: \u670D\u52A1\u5668\u6536\u5230\u8BF7\u6C42\u540E\uFF0C\u51C6\u5907\u56DE\u590D\u786E\u8BA4 Server->>Client: ACK=1, Seq=y, Ack=x+1
\u670D\u52A1\u5668\u56DE\u590D\u786E\u8BA4\u6536\u5230\u7684\u62A5\u6587\u6BB5\uFF0C\u8868\u793A\u786E\u8BA4\u6536\u5230\u5BA2\u6237\u7AEF\u7684\u8BF7\u6C42\uFF0C
Seq\u4E3A\u670D\u52A1\u5668\u7684\u521D\u59CB\u5E8F\u5217\u53F7 y\uFF0CAck\u4E3A\u5BA2\u6237\u7AEF\u521D\u59CB\u5E8F\u5217\u53F7 x+1 Note over Server: \u670D\u52A1\u5668\u51C6\u5907\u5173\u95ED\u8FDE\u63A5\uFF0C\u53D1\u9001FIN Server->>Client: FIN=1, Seq=z, Ack=x+1
\u670D\u52A1\u5668\u53D1\u9001\u5E26\u6709FIN\u6807\u5FD7\u4F4D\u7684\u62A5\u6587\u6BB5\uFF0C\u8868\u793A\u51C6\u5907\u5173\u95ED\u8FDE\u63A5\uFF0C
Seq\u4E3A\u670D\u52A1\u5668\u7684\u521D\u59CB\u5E8F\u5217\u53F7 z\uFF0CAck\u4E3A\u5BA2\u6237\u7AEF\u521D\u59CB\u5E8F\u5217\u53F7 x+1 Note over Client: \u5BA2\u6237\u7AEF\u6536\u5230\u670D\u52A1\u5668\u7684\u8BF7\u6C42\uFF0C\u51C6\u5907\u56DE\u590D\u786E\u8BA4 Client->>Server: ACK=1, Seq=x+1, Ack=z+1
\u5BA2\u6237\u7AEF\u56DE\u590D\u786E\u8BA4\u6536\u5230\u7684\u62A5\u6587\u6BB5\uFF0C\u8868\u793A\u786E\u8BA4\u6536\u5230\u670D\u52A1\u5668\u7684\u8BF7\u6C42\uFF0C
Seq\u4E3A\u5BA2\u6237\u7AEF\u521D\u59CB\u5E8F\u5217\u53F7 x+1\uFF0CAck\u4E3A\u670D\u52A1\u5668\u521D\u59CB\u5E8F\u5217\u53F7 z+1 Note over Client: TCP\u8FDE\u63A5\u5173\u95ED `}),` `,(0,t.jsx)(e.h2,{id:"\u7ECF\u5178\u95EE\u9898",children:(0,t.jsx)(e.a,{href:"#\u7ECF\u5178\u95EE\u9898",children:"\u7ECF\u5178\u95EE\u9898"})}),` `,(0,t.jsx)(e.p,{children:"\u95EE\uFF1ATCP \u4E3A\u4EC0\u4E48\u662F 3 \u6B21\u63E1\u624B\uFF0C4 \u6B21\u6325\u624B\uFF1F"}),` `,(0,t.jsx)(e.p,{children:"\u7B54\uFF1ATCP\u662F\u4E00\u4E2A\u53CC\u5411\u901A\u4FE1\u7684\u534F\u8BAE\uFF0C\u4E3A\u4E86\u786E\u4FDD\u53CC\u65B9\u90FD\u80FD\u5EFA\u7ACB\u8FDE\u63A5\u548C\u5173\u95ED\u8FDE\u63A5\uFF0C\u8FDE\u63A5\u7684\u5EFA\u7ACB\u548C\u5173\u95ED\u9636\u6BB5\u90FD\u9700\u8981\u8FDB\u884C\u63E1\u624B\u548C\u6325\u624B\u64CD\u4F5C\u3002"}),` `,(0,t.jsx)(e.p,{children:"\u5728\u8FDE\u63A5\u5EFA\u7ACB\u65F6\uFF0C\u7531\u4E8E\u53CC\u65B9\u90FD\u6CA1\u6709\u7E41\u91CD\u7684\u4EFB\u52A1\uFF0C\u56E0\u6B64\u53EA\u9700\u4E09\u6B21\u63E1\u624B\u3002\u4E00\u65B9\u5411\u53E6\u4E00\u65B9\u53D1\u8D77\u540C\u6B65 SYN \u8BF7\u6C42\u540E\uFF0C\u53E6\u4E00\u65B9\u53EF\u4EE5\u5C06\u81EA\u5DF1\u7684 ACK \u548C SYN \u6253\u5305\u4F5C\u4E3A\u4E00\u6761\u6D88\u606F\u56DE\u590D\uFF0C\u8FD9\u6837\u53EA\u9700\u8981\u4E09\u6B21\u6570\u636E\u4F20\u8F93\uFF0C\u5B9E\u73B0\u4E86\u8FDE\u63A5\u7684\u53EF\u9760\u5EFA\u7ACB\u3002"}),` `,(0,t.jsx)(e.p,{children:"\u800C\u5728\u8FDE\u63A5\u5173\u95ED\u65F6\uFF0C\u53CC\u65B9\u53EF\u80FD\u90FD\u6709\u672A\u5B8C\u6210\u7684\u4EFB\u52A1\u3002\u6536\u5230\u6325\u624B\u8BF7\u6C42\u7684\u4E00\u65B9\u5FC5\u987B\u7ACB\u5373\u56DE\u590D\u786E\u8BA4\uFF0C\u8868\u793A\u63A5\u6536\u5230\u4E86\u6325\u624B\u8BF7\u6C42\u3002\u6700\u540E\u7B49\u5F85\u6240\u6709\u4EFB\u52A1\u5B8C\u6210\u540E\u518D\u53D1\u9001\u8BF7\u6C42\u4E2D\u65AD\u8FDE\u63A5\uFF0C\u56E0\u6B64\u9700\u8981\u56DB\u6B21\u6325\u624B\u3002"}),` `,(0,t.jsx)(e.p,{children:"\u901A\u8FC7\u4E09\u6B21\u63E1\u624B\u548C\u56DB\u6B21\u6325\u624B\uFF0CTCP\u786E\u4FDD\u4E86\u8FDE\u63A5\u7684\u53EF\u9760\u6027\u548C\u7A33\u5B9A\u6027\uFF0C\u4FDD\u969C\u4E86\u6570\u636E\u4F20\u8F93\u7684\u5B89\u5168\u6027\u548C\u5B8C\u6574\u6027\u3002"})]})}function q(r={}){let{wrapper:e}=r.components||{};return e?(0,t.jsx)(e,Object.assign({},r,{children:(0,t.jsx)(l,r)})):l(r)}var f=q;function k(r,e){throw new Error("Expected "+(e?"component":"object")+" `"+r+"` to be defined: you likely forgot to import, pass, or provide it.")}return A(u);})(); ;return Component;

Tag:Network

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