?? vlan7.htm

?? 里面的課件講解了valn 的一些基本原理, 很受用的啊
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  mso-hansi-font-family:"Times New Roman"'>地址</span></p>
  </td>
  <td width=83 style='width:62.15pt;border:solid windowtext 1.0pt;border-left:
  none;mso-border-left-alt:solid windowtext .5pt;mso-border-alt:solid windowtext .5pt;
  padding:0cm 5.4pt 0cm 5.4pt;height:22.4pt'>
  <p class=MsoNormal align=center style='text-align:center;mso-pagination:widow-orphan'><span
  lang=EN-US>VLAN</span></p>
  </td>
 </tr>
 <tr style='mso-yfti-irow:1;height:23.5pt'>
  <td width=83 style='width:62.1pt;border:solid windowtext 1.0pt;border-top:
  none;mso-border-top-alt:solid windowtext .5pt;mso-border-alt:solid windowtext .5pt;
  padding:0cm 5.4pt 0cm 5.4pt;height:23.5pt'>
  <p class=MsoNormal align=center style='text-align:center;mso-pagination:widow-orphan'><span
  lang=EN-US>1</span></p>
  </td>
  <td width=83 style='width:62.15pt;border-top:none;border-left:none;
  border-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt;
  mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt;
  mso-border-alt:solid windowtext .5pt;padding:0cm 5.4pt 0cm 5.4pt;height:23.5pt'>
  <p class=MsoNormal align=center style='text-align:center;mso-pagination:widow-orphan'><span
  lang=EN-US>A</span></p>
  </td>
  <td width=83 style='width:62.15pt;border-top:none;border-left:none;
  border-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt;
  mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt;
  mso-border-alt:solid windowtext .5pt;padding:0cm 5.4pt 0cm 5.4pt;height:23.5pt'>
  <p class=MsoNormal align=center style='text-align:center;mso-pagination:widow-orphan'><span
  lang=EN-US>1</span></p>
  </td>
 </tr>
 <tr style='mso-yfti-irow:2;height:22.4pt'>
  <td width=83 style='width:62.1pt;border:solid windowtext 1.0pt;border-top:
  none;mso-border-top-alt:solid windowtext .5pt;mso-border-alt:solid windowtext .5pt;
  padding:0cm 5.4pt 0cm 5.4pt;height:22.4pt'>
  <p class=MsoNormal align=center style='text-align:center;mso-pagination:widow-orphan'><span
  lang=EN-US>2</span></p>
  </td>
  <td width=83 style='width:62.15pt;border-top:none;border-left:none;
  border-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt;
  mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt;
  mso-border-alt:solid windowtext .5pt;padding:0cm 5.4pt 0cm 5.4pt;height:22.4pt'>
  <p class=MsoNormal align=center style='text-align:center;mso-pagination:widow-orphan'><span
  lang=EN-US>B</span></p>
  </td>
  <td width=83 style='width:62.15pt;border-top:none;border-left:none;
  border-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt;
  mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt;
  mso-border-alt:solid windowtext .5pt;padding:0cm 5.4pt 0cm 5.4pt;height:22.4pt'>
  <p class=MsoNormal align=center style='text-align:center;mso-pagination:widow-orphan'><span
  lang=EN-US>1</span></p>
  </td>
 </tr>
 <tr style='mso-yfti-irow:3;height:22.4pt'>
  <td width=83 style='width:62.1pt;border:solid windowtext 1.0pt;border-top:
  none;mso-border-top-alt:solid windowtext .5pt;mso-border-alt:solid windowtext .5pt;
  padding:0cm 5.4pt 0cm 5.4pt;height:22.4pt'>
  <p class=MsoNormal align=center style='text-align:center;mso-pagination:widow-orphan'><span
  lang=EN-US>3</span></p>
  </td>
  <td width=83 style='width:62.15pt;border-top:none;border-left:none;
  border-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt;
  mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt;
  mso-border-alt:solid windowtext .5pt;padding:0cm 5.4pt 0cm 5.4pt;height:22.4pt'>
  <p class=MsoNormal align=center style='text-align:center;mso-pagination:widow-orphan'><span
  lang=EN-US>C</span></p>
  </td>
  <td width=83 style='width:62.15pt;border-top:none;border-left:none;
  border-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt;
  mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt;
  mso-border-alt:solid windowtext .5pt;padding:0cm 5.4pt 0cm 5.4pt;height:22.4pt'>
  <p class=MsoNormal align=center style='text-align:center;mso-pagination:widow-orphan'><span
  lang=EN-US>2</span></p>
  </td>
 </tr>
 <tr style='mso-yfti-irow:4;height:23.5pt'>
  <td width=83 style='width:62.1pt;border:solid windowtext 1.0pt;border-top:
  none;mso-border-top-alt:solid windowtext .5pt;mso-border-alt:solid windowtext .5pt;
  padding:0cm 5.4pt 0cm 5.4pt;height:23.5pt'>
  <p class=MsoNormal align=center style='text-align:center;mso-pagination:widow-orphan'><span
  lang=EN-US>4</span></p>
  </td>
  <td width=83 style='width:62.15pt;border-top:none;border-left:none;
  border-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt;
  mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt;
  mso-border-alt:solid windowtext .5pt;padding:0cm 5.4pt 0cm 5.4pt;height:23.5pt'>
  <p class=MsoNormal align=center style='text-align:center;mso-pagination:widow-orphan'><span
  lang=EN-US>D</span></p>
  </td>
  <td width=83 style='width:62.15pt;border-top:none;border-left:none;
  border-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt;
  mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt;
  mso-border-alt:solid windowtext .5pt;padding:0cm 5.4pt 0cm 5.4pt;height:23.5pt'>
  <p class=MsoNormal align=center style='text-align:center;mso-pagination:widow-orphan'><span
  lang=EN-US>2</span></p>
  </td>
 </tr>
 <tr style='mso-yfti-irow:5;height:22.4pt'>
  <td width=83 style='width:62.1pt;border:solid windowtext 1.0pt;border-top:
  none;mso-border-top-alt:solid windowtext .5pt;mso-border-alt:solid windowtext .5pt;
  padding:0cm 5.4pt 0cm 5.4pt;height:22.4pt'>
  <p class=MsoNormal align=center style='text-align:center;mso-pagination:widow-orphan'><span
  lang=EN-US>5</span></p>
  </td>
  <td width=83 style='width:62.15pt;border-top:none;border-left:none;
  border-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt;
  mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt;
  mso-border-alt:solid windowtext .5pt;padding:0cm 5.4pt 0cm 5.4pt;height:22.4pt'>
  <p class=MsoNormal align=center style='text-align:center;mso-pagination:widow-orphan'><span
  style='font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
  "Times New Roman"'>－</span></p>
  </td>
  <td width=83 style='width:62.15pt;border-top:none;border-left:none;
  border-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt;
  mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt;
  mso-border-alt:solid windowtext .5pt;padding:0cm 5.4pt 0cm 5.4pt;height:22.4pt'>
  <p class=MsoNormal align=center style='text-align:center;mso-pagination:widow-orphan'><span
  style='font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
  "Times New Roman"'>－</span></p>
  </td>
 </tr>
 <tr style='mso-yfti-irow:6;mso-yfti-lastrow:yes;height:24.6pt'>
  <td width=83 style='width:62.1pt;border:solid windowtext 1.0pt;border-top:
  none;mso-border-top-alt:solid windowtext .5pt;mso-border-alt:solid windowtext .5pt;
  padding:0cm 5.4pt 0cm 5.4pt;height:24.6pt'>
  <p class=MsoNormal align=center style='text-align:center;mso-pagination:widow-orphan'><span
  lang=EN-US>6</span></p>
  </td>
  <td width=83 style='width:62.15pt;border-top:none;border-left:none;
  border-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt;
  mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt;
  mso-border-alt:solid windowtext .5pt;padding:0cm 5.4pt 0cm 5.4pt;height:24.6pt'>
  <p class=MsoNormal align=center style='text-align:center;mso-pagination:widow-orphan'><span
  lang=EN-US>R</span></p>
  </td>
  <td width=83 style='width:62.15pt;border-top:none;border-left:none;
  border-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt;
  mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt;
  mso-border-alt:solid windowtext .5pt;padding:0cm 5.4pt 0cm 5.4pt;height:24.6pt'>
  <p class=MsoNormal align=center style='text-align:center;mso-pagination:widow-orphan'><span
  style='font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
  "Times New Roman"'>匯聚</span></p>
  </td>
 </tr>
</table>

<p class=MsoNormal align=left style='text-align:left;mso-pagination:widow-orphan'><span
lang=EN-US><o:p>&nbsp;</o:p></span></p>

<p class=MsoNormal align=left style='text-align:left;mso-pagination:widow-orphan'><span
style='font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman"'>首先考慮計算機</span><span lang=EN-US>A</span><span
style='font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman"'>與同一</span><span lang=EN-US>VLAN</span><span
style='font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman"'>內的計算機</span><span lang=EN-US>B</span><span style='font-family:
宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"'>之間通信時的情形。</span></p>

<p class=MsoNormal align=left style='text-align:left;mso-pagination:widow-orphan'><span
style='font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman"'>計算機</span><span lang=EN-US>A</span><span style='font-family:
宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"'>發出</span><span
lang=EN-US>ARP</span><span style='font-family:宋體;mso-ascii-font-family:"Times New Roman";
mso-hansi-font-family:"Times New Roman"'>請求信息，請求解析</span><span lang=EN-US>B</span><span
style='font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman"'>的</span><span lang=EN-US>MAC</span><span style='font-family:
宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"'>地址。交換機收到數據幀后，檢索</span><span
lang=EN-US>MAC</span><span style='font-family:宋體;mso-ascii-font-family:"Times New Roman";
mso-hansi-font-family:"Times New Roman"'>地址列表中與收信端口同屬一個</span><span lang=EN-US>VLAN</span><span
style='font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman"'>的表項。結果發現，計算機</span><span lang=EN-US>B</span><span
style='font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman"'>連接在端口</span><span lang=EN-US>2</span><span style='font-family:
宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"'>上，于是交換機將數據幀轉發給端口</span><span
lang=EN-US>2</span><span style='font-family:宋體;mso-ascii-font-family:"Times New Roman";
mso-hansi-font-family:"Times New Roman"'>，最終計算機</span><span lang=EN-US>B</span><span
style='font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman"'>收到該幀。<span style='color:blue'>收發信雙方同屬一個</span></span><span
lang=EN-US style='color:blue'>VLAN</span><span style='font-family:宋體;
mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";
color:blue'>之內的通信，一切處理均在交換機內完成</span><span style='font-family:宋體;mso-ascii-font-family:
"Times New Roman";mso-hansi-font-family:"Times New Roman"'>。</span></p>

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lang=EN-US style='mso-fareast-language:JA'><span style='mso-element:field-begin;
mso-field-lock:yes'></span><span
style='mso-spacerun:yes'>&nbsp;</span>SHAPE<span
style='mso-spacerun:yes'>&nbsp; </span>\* MERGEFORMAT <span style='mso-element:
field-separator'></span></span><![endif]--><span lang=EN-US style='mso-fareast-language:
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     <td><![endif]>
     <div>
     <p class=MsoNormal><b style='mso-bidi-font-weight:normal'><span
     style='font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
     "Times New Roman"'>交換機</span><span lang=EN-US><o:p></o:p></span></b></p>
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     <p class=MsoNormal><b style='mso-bidi-font-weight:normal'><span
     style='font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
     "Times New Roman"'>路由器端口的</span><span lang=EN-US>MAC</span></b><b
     style='mso-bidi-font-weight:normal'><span style='font-family:宋體;
     mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"'>地址：</span><span
     lang=EN-US>R<o:p></o:p></span></b></p>
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