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<p class=MsoNormal><span lang=EN-US>192.168.1.0/24<o:p></o:p></span></p>
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<p class=MsoNormal><span lang=EN-US>192.168.2.0/24<o:p></o:p></span></p>
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<p class=MsoNormal><span lang=EN-US>192.168.2.0/24<o:p></o:p></span></p>
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<p class=MsoNormal align=center style='text-align:center'><b
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font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman"'>需要将计算机</span></b><b style='mso-bidi-font-weight:normal'><span
lang=EN-US style='font-size:9.0pt'>A</span></b><b style='mso-bidi-font-weight:
normal'><span style='font-size:9.0pt;font-family:宋体;mso-ascii-font-family:
"Times New Roman";mso-hansi-font-family:"Times New Roman"'>移动到</span></b><b
style='mso-bidi-font-weight:normal'><span lang=EN-US style='font-size:
9.0pt'>192.168.2.0</span><span lang=EN-US><o:p></o:p></span></b></p>
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<p class=MsoNormal align=center style='text-align:center'><b
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font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman"'>改变物理<span class=GramE>拓补结构</span>、重新连线</span><span
lang=EN-US><o:p></o:p></span></b></p>
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<p class=MsoNormal align=left style='text-align:left;mso-pagination:widow-orphan'><span
style='font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman"'>图中的路由器，带有</span><span lang=EN-US>2</span><span
style='font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman"'>个</span><span lang=EN-US>LAN</span><span style='font-family:
宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"'>接口。左侧的网络是</span><span
lang=EN-US>192.168.1.0/24</span><span style='font-family:宋体;mso-ascii-font-family:
"Times New Roman";mso-hansi-font-family:"Times New Roman"'>，右侧是</span><span
lang=EN-US>192.168.2.0/24</span><span style='font-family:宋体;mso-ascii-font-family:
"Times New Roman";mso-hansi-font-family:"Times New Roman"'>。</span></p>
<p class=MsoNormal align=left style='text-align:left;mso-pagination:widow-orphan'><span
style='font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman"'>现在如果想将</span><span lang=EN-US>192.168.1.0/24</span><span
style='font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman"'>这个网络上的计算机</span><span lang=EN-US>A</span><span
style='font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman"'>转移到</span><span lang=EN-US>192.168.2.0/24</span><span
style='font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman"'>上去，就需要<span style='color:red'>改变物理连接、将</span></span><span
lang=EN-US style='color:red'>A</span><span style='font-family:宋体;mso-ascii-font-family:
"Times New Roman";mso-hansi-font-family:"Times New Roman";color:red'>接到右侧的交换机上</span><span
style='font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman"'>。</span></p>
<p class=MsoNormal align=left style='text-align:left;mso-pagination:widow-orphan'><span
style='font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman"'>并且，当需要新增一个地址为</span><span lang=EN-US>192.168.3.0/24</span><span
style='font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman"'>的网络时，还要在路由器上再占用一个</span><span lang=EN-US>LAN</span><span
style='font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman"'>接口并添置一台交换机。而由于这台路由器上只带了</span><span lang=EN-US>2</span><span
style='font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman"'>个</span><span lang=EN-US>LAN</span><span style='font-family:
宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"'>接口，因此为了新增网络还必须将路由器升级为带有</span><span
lang=EN-US>3</span><span style='font-family:宋体;mso-ascii-font-family:"Times New Roman";
mso-hansi-font-family:"Times New Roman"'>个以上</span><span lang=EN-US>LAN</span><span
style='font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman"'>接口的产品。</span></p>
<p class=MsoNormal align=left style='text-align:left;mso-pagination:widow-orphan'><span
lang=EN-US><o:p> </o:p></span></p>
<p class=MsoNormal align=left style='text-align:left;mso-pagination:widow-orphan'><b
style='mso-bidi-font-weight:normal'><span style='font-size:12.0pt;font-family:
宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";
color:red'>使用</span></b><b style='mso-bidi-font-weight:normal'><span
lang=EN-US style='font-size:12.0pt;color:red'>VLAN</span></b><b
style='mso-bidi-font-weight:normal'><span style='font-size:12.0pt;font-family:
宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";
color:red'>的局域网<span class=GramE>中网络</span>构成的改变</span></b><b style='mso-bidi-font-weight:
normal'><span lang=EN-US style='font-size:12.0pt;color:red'><o:p></o:p></span></b></p>
<p class=MsoNormal align=left style='text-align:left;mso-pagination:widow-orphan'><span
style='font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman"'>接下来再假设有一个由</span><span lang=EN-US>1</span><span
style='font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman"'>台路由器、</span><span lang=EN-US>2</span><span style='font-family:
宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"'>台交换机构成的“使用</span><span
lang=EN-US>VLAN</span><span style='font-family:宋体;mso-ascii-font-family:"Times New Roman";
mso-hansi-font-family:"Times New Roman"'>”的局域网。交换机与交换机、交换机与路由器之间均为汇聚链路；并且假设</span><span
lang=EN-US>192.168.1.0/24</span><span style='font-family:宋体;mso-ascii-font-family:
"Times New Roman";mso-hansi-font-family:"Times New Roman"'>对应红色</span><span
lang=EN-US>VLAN</span><span style='font-family:宋体;mso-ascii-font-family:"Times New Roman";
mso-hansi-font-family:"Times New Roman"'>、</span><span lang=EN-US>192.168.2.0/24</span><span
style='font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman"'>对应蓝色</span><span lang=EN-US>VLAN</span><span
style='font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman"'>。</span><span lang=EN-US><o:p></o:p></span></p>
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<p class=MsoNormal><span lang=EN-US>1</span></p>
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<p class=MsoNormal><span lang=EN-US>2</span></p>
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<p class=MsoNormal><span lang=EN-US>3</span></p>
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<p class=MsoNormal><span lang=EN-US>4</span></p>
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<p class=MsoNormal><span style='font-family:宋体;mso-ascii-font-family:
"Times New Roman";mso-hansi-font-family:"Times New Roman"'>交换机</span><span
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