通信人家园
标题:
QINQ和user vlan哪个在外层？
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时间:
2011-12-14 21:06
作者:
ironman2006
标题:
QINQ和user vlan哪个在外层？
谢谢，PPPOE中的PON网络。
时间:
2011-12-15 11:12
作者:
tangziwen
标题:
qinq
qinq又叫VLAN堆叠，就是在原来的VLAN前面再打上一层标签：内层标识用户（user vlan），外层标识设备或者业务（SVLAN）。SVLAN:CVLAN。
时间:
2011-12-15 15:12
作者:
leah2012
<font style=\"background-color: #cce8cf\">楼上说的对的 补充下：</font>
<font style=\"background-color: #cce8cf\"> QinQ只是一种技术，它是在802.1Q VLAN的基础上又增加了一层VLAN标签。最开始的目的是为了增加VLAN的数量，后来随着城域网和精细化管理的要求，QinQ的双层标签的应用场景逐步变宽，包括楼上所说的内层用户标签，外层业务标签。</font>
<font style=\"background-color: #cce8cf\"> 另外QinQ带两层tag，<span style=\"font-family: 宋体; font-size: 9pt; mso-ascii-font-family: arial; mso-hansi-font-family: arial; mso-bidi-font-family: arial; mso-ansi-language: en-us; mso-fareast-language: zh-cn; mso-bidi-language: ar-sa\">用户可以规划自己的私网</span><span style=\"font-family: arial; font-size: 9pt; mso-ansi-language: en-us; mso-fareast-language: zh-cn; mso-bidi-language: ar-sa; mso-fareast-font-family: 宋体\" lang=EN-US>VLAN ID</span><span style=\"font-family: 宋体; font-size: 9pt; mso-ascii-font-family: arial; mso-hansi-font-family: arial; mso-bidi-font-family: arial; mso-ansi-language: en-us; mso-fareast-language: zh-cn; mso-bidi-language: ar-sa\">，不会导致和公网</span><span style=\"font-family: arial; font-size: 9pt; mso-ansi-language: en-us; mso-fareast-language: zh-cn; mso-bidi-language: ar-sa; mso-fareast-font-family: 宋体\" lang=EN-US>VLAN ID</span><span style=\"font-family: 宋体; font-size: 9pt; mso-ascii-font-family: arial; mso-hansi-font-family: arial; mso-bidi-font-family: arial; mso-ansi-language: en-us; mso-fareast-language: zh-cn; mso-bidi-language: ar-sa\">冲突,</span><span style=\"font-family: 宋体; font-size: 9pt; mso-ascii-font-family: arial; mso-hansi-font-family: arial; mso-bidi-font-family: arial; mso-ansi-language: en-us; mso-fareast-language: zh-cn; mso-bidi-language: ar-sa\">将用户私网</span><span style=\"font-family: arial; font-size: 9pt; mso-ansi-language: en-us; mso-fareast-language: zh-cn; mso-bidi-language: ar-sa; mso-fareast-font-family: 宋体\" lang=EN-US>VLAN Tag</span><span style=\"font-family: 宋体; font-size: 9pt; mso-ascii-font-family: arial; mso-hansi-font-family: arial; mso-bidi-font-family: arial; mso-ansi-language: en-us; mso-fareast-language: zh-cn; mso-bidi-language: ar-sa\">封装在公网</span><span style=\"font-family: arial; font-size: 9pt; mso-ansi-language: en-us; mso-fareast-language: zh-cn; mso-bidi-language: ar-sa; mso-fareast-font-family: 宋体\" lang=EN-US>VLAN Tag</span><span style=\"font-family: 宋体; font-size: 9pt; mso-ascii-font-family: arial; mso-hansi-font-family: arial; mso-bidi-font-family: arial; mso-ansi-language: en-us; mso-fareast-language: zh-cn; mso-bidi-language: ar-sa\">中，使报文带着两层</span><span style=\"font-family: arial; font-size: 9pt; mso-ansi-language: en-us; mso-fareast-language: zh-cn; mso-bidi-language: ar-sa; mso-fareast-font-family: 宋体\" lang=EN-US>VLAN Tag</span><span style=\"font-family: 宋体; font-size: 9pt; mso-ascii-font-family: arial; mso-hansi-font-family: arial; mso-bidi-font-family: arial; mso-ansi-language: en-us; mso-fareast-language: zh-cn; mso-bidi-language: ar-sa\">穿越运营商的骨干网络（公网）,形成端到端的VLAN。</span></font>
时间:
2012-1-8 20:06
作者:
09021208
qinq就包括service vlan和user vlan，其中user vlan是内层，service vlan是外层。
时间:
2012-7-11 21:31
作者:
zpshzhy
<font style=\"background-color: #cce8cf\">QinQ只是一种技术，它是在802.1Q VLAN的基础上又增加了一层VLAN标签。最开始的目的是为了增加VLAN的数量，后来随着城域网和精细化管理的要求，QinQ的双层标签的应用场景逐步变宽，包括楼上所说的内层用户标签，外层业务标签。
另外QinQ带两层tag，<span style=\"font-size: 9pt; font-family: 宋体; mso-ascii-font-family: arial; mso-hansi-font-family: arial; mso-bidi-font-family: arial; mso-ansi-language: en-us; mso-fareast-language: zh-cn; mso-bidi-language: ar-sa\">用户可以规划自己的私网</span><span lang=EN-US style=\"font-size: 9pt; font-family: arial; mso-ansi-language: en-us; mso-fareast-language: zh-cn; mso-bidi-language: ar-sa; mso-fareast-font-family: 宋体\">VLAN ID</span><span style=\"font-size: 9pt; font-family: 宋体; mso-ascii-font-family: arial; mso-hansi-font-family: arial; mso-bidi-font-family: arial; mso-ansi-language: en-us; mso-fareast-language: zh-cn; mso-bidi-language: ar-sa\">，不会导致和公网</span><span lang=EN-US style=\"font-size: 9pt; font-family: arial; mso-ansi-language: en-us; mso-fareast-language: zh-cn; mso-bidi-language: ar-sa; mso-fareast-font-family: 宋体\">VLAN ID</span><span style=\"font-size: 9pt; font-family: 宋体; mso-ascii-font-family: arial; mso-hansi-font-family: arial; mso-bidi-font-family: arial; mso-ansi-language: en-us; mso-fareast-language: zh-cn; mso-bidi-language: ar-sa\">冲突,</span><span style=\"font-size: 9pt; font-family: 宋体; mso-ascii-font-family: arial; mso-hansi-font-family: arial; mso-bidi-font-family: arial; mso-ansi-language: en-us; mso-fareast-language: zh-cn; mso-bidi-language: ar-sa\">将用户私网</span><span lang=EN-US style=\"font-size: 9pt; font-family: arial; mso-ansi-language: en-us; mso-fareast-language: zh-cn; mso-bidi-language: ar-sa; mso-fareast-font-family: 宋体\">VLAN Tag</span><span style=\"font-size: 9pt; font-family: 宋体; mso-ascii-font-family: arial; mso-hansi-font-family: arial; mso-bidi-font-family: arial; mso-ansi-language: en-us; mso-fareast-language: zh-cn; mso-bidi-language: ar-sa\">封装在公网</span><span lang=EN-US style=\"font-size: 9pt; font-family: arial; mso-ansi-language: en-us; mso-fareast-language: zh-cn; mso-bidi-language: ar-sa; mso-fareast-font-family: 宋体\">VLAN Tag</span><span style=\"font-size: 9pt; font-family: 宋体; mso-ascii-font-family: arial; mso-hansi-font-family: arial; mso-bidi-font-family: arial; mso-ansi-language: en-us; mso-fareast-language: zh-cn; mso-bidi-language: ar-sa\">中，使报文带着两层</span><span lang=EN-US style=\"font-size: 9pt; font-family: arial; mso-ansi-language: en-us; mso-fareast-language: zh-cn; mso-bidi-language: ar-sa; mso-fareast-font-family: 宋体\">VLAN Tag</span><span style=\"font-size: 9pt; font-family: 宋体; mso-ascii-font-family: arial; mso-hansi-font-family: arial; mso-bidi-font-family: arial; mso-ansi-language: en-us; mso-fareast-language: zh-cn; mso-bidi-language: ar-sa\">穿越运营商的骨干网络（公网）,形成端到端的VLAN</span></font>
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