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<p class=MsoNormal align=center style='text-align:center'><b style='mso-bidi-font-weight:
normal'><span lang=EN-US style='font-size:14.0pt'>VLAN</span></b><b
style='mso-bidi-font-weight:normal'><span style='font-size:14.0pt;font-family:
宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"'>的访问链接</span></b><b
style='mso-bidi-font-weight:normal'><span lang=EN-US style='font-size:14.0pt'><o:p></o:p></span></b></p>
<p class=MsoNormal><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'>交换机的端口</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><span style='font-family:宋体;mso-ascii-font-family:"Times New Roman";
mso-hansi-font-family:"Times New Roman"'>交换机的端口，可以分为以下两种：</span></p>
<p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p>
<p class=MsoNormal style='margin-left:21.0pt;text-indent:-21.0pt;mso-list:l4 level1 lfo4;
tab-stops:list 21.0pt'><![if !supportLists]><span lang=EN-US style='font-family:
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style='mso-list:Ignore'>l<span style='font:7.0pt "Times New Roman"'>
</span></span></span><![endif]><span style='font-family:宋体;mso-ascii-font-family:
"Times New Roman";mso-hansi-font-family:"Times New Roman"'>访问链接<span
class=GramE>（</span></span><span lang=EN-US>Access Link</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 style='margin-left:21.0pt;text-indent:-21.0pt;mso-list:l4 level1 lfo4;
tab-stops:list 21.0pt'><![if !supportLists]><span lang=EN-US style='font-family:
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style='mso-list:Ignore'>l<span style='font:7.0pt "Times New Roman"'>
</span></span></span><![endif]><span style='font-family:宋体;mso-ascii-font-family:
"Times New Roman";mso-hansi-font-family:"Times New Roman"'>汇聚链接<span
class=GramE>（</span></span><span lang=EN-US>Trunk Link</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><span lang=EN-US><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-family:宋体;mso-ascii-font-family:"Times New Roman";
mso-hansi-font-family:"Times New Roman"'>接下来就让我们来依次学习这两种不同端口的特征。这一讲，首先学习“访问链接”。</span></p>
<p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p>
<p class=MsoNormal><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'>访问链接</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><span style='font-family:宋体;mso-ascii-font-family:"Times New Roman";
mso-hansi-font-family:"Times New Roman";color:blue'>访问链接，指的是“只属于一个</span><span
lang=EN-US style='color:blue'>VLAN</span><span style='font-family:宋体;
mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";
color:blue'>，且仅向该</span><span lang=EN-US style='color:blue'>VLAN</span><span
style='font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman";color:blue'>转发数据帧”的端口</span><span style='font-family:宋体;
mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"'>。在大多数情况下，访问链接所连的是客户机。</span></p>
<p class=MsoNormal><span style='font-family:宋体;mso-ascii-font-family:"Times New Roman";
mso-hansi-font-family:"Times New Roman"'>通常设置</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"'>的顺序是：</span></p>
<p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p>
<p class=MsoNormal style='margin-left:21.0pt;text-indent:-21.0pt;mso-list:l5 level1 lfo5;
tab-stops:list 21.0pt'><![if !supportLists]><span lang=EN-US style='font-family:
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style='mso-list:Ignore'>l<span style='font:7.0pt "Times New Roman"'>
</span></span></span><![endif]><span style='font-family:宋体;mso-ascii-font-family:
"Times New Roman";mso-hansi-font-family:"Times New Roman"'>生成</span><span
lang=EN-US>VLAN</span></p>
<p class=MsoNormal style='margin-left:21.0pt;text-indent:-21.0pt;mso-list:l5 level1 lfo5;
tab-stops:list 21.0pt'><![if !supportLists]><span lang=EN-US style='font-family:
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</span></span></span><![endif]><span style='font-family:宋体;mso-ascii-font-family:
"Times New Roman";mso-hansi-font-family:"Times New Roman"'>设定访问链接<span
class=GramE>（</span>决定各端口属于哪一个</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></p>
<p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-family:宋体;mso-ascii-font-family:"Times New Roman";
mso-hansi-font-family:"Times New Roman"'>设定访问链接的手法，可以是事先固定的、也可以是根据所连的计算机而动态改变设定。前者被称为“静态</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"'>”、后者自然就是“动态</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"'>”了。</span></p>
<p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p>
<p class=MsoNormal><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'>静态</span></b><b
style='mso-bidi-font-weight:normal'><span lang=EN-US style='font-size:12.0pt;
color:red'>VLAN<o:p></o:p></span></b></p>
<p class=MsoNormal><span style='font-family:宋体;mso-ascii-font-family:"Times New Roman";
mso-hansi-font-family:"Times New Roman"'>静态</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"'>又被称为<span style='color:blue'>基于端口的</span></span><span
lang=EN-US style='color:blue'>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>Port Based VLAN</span><span style='font-family:宋体;mso-ascii-font-family:
"Times New Roman";mso-hansi-font-family:"Times New Roman"'>）。顾名思义，就是明确指定各端口属于哪个</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"'>的设定方法。</span></p>
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