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标题: SNCP与PP、MSP保护的比较 [查看完整版帖子] [打印本页]

时间: 2007-9-28 16:43

作者: feishen 标题: SNCP与PP、MSP保护的比较

P</td><td valign="top" width="194" style="BORDER-RIGHT: windowtext 1pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: windowtext 1pt solid; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: #ece9d8; WIDTH: 145.25pt; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 1pt solid; BACKGROUND-COLOR: transparent; mso-border-alt: solid windowtext .75pt; mso-border-left-alt: solid windowtext .75pt;">SNCP</td><td valign="top" width="194" style="BORDER-RIGHT: windowtext 1pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: windowtext 1pt solid; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: #ece9d8; WIDTH: 145.25pt; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 1pt solid; BACKGROUND-COLOR: transparent; mso-border-alt: solid windowtext .75pt; mso-border-left-alt: solid windowtext .75pt;">MSP</td></tr><tr style="mso-yfti-irow: 1;"><td valign="top" width="194" style="BORDER-RIGHT: windowtext 1pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: #ece9d8; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: windowtext 1pt solid; WIDTH: 145.25pt; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 1pt solid; BACKGROUND-COLOR: transparent; mso-border-alt: solid windowtext .75pt; mso-border-top-alt: solid windowtext .75pt;">SNCP保护的一种特例，仅适用于端到端通道的保护</td><td valign="top" width="194" style="BORDER-RIGHT: windowtext 1pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: #ece9d8; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: #ece9d8; WIDTH: 145.25pt; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 1pt solid; BACKGROUND-COLOR: transparent; mso-border-alt: solid windowtext .75pt; mso-border-left-alt: solid windowtext .75pt; mso-border-top-alt: solid windowtext .75pt;">研究子网间业务的保护，不仅适用于端到端通道保护，还可以保护通道的一部分</td><td valign="top" width="194" style="BORDER-RIGHT: windowtext 1pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: #ece9d8; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: #ece9d8; WIDTH: 145.25pt; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 1pt solid; BACKGROUND-COLOR: transparent; mso-border-alt: solid windowtext .75pt; mso-border-left-alt: solid windowtext .75pt; mso-border-top-alt: solid windowtext .75pt;">研究线路（或复用段）失效后，对经过该段线路业务进行保护的技术，因此也叫线路保护。</td></tr><tr style="mso-yfti-irow: 2;"><td valign="top" width="194" style="BORDER-RIGHT: windowtext 1pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: #ece9d8; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: windowtext 1pt solid; WIDTH: 145.25pt; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 1pt solid; BACKGROUND-COLOR: transparent; mso-border-alt: solid windowtext .75pt; mso-border-top-alt: solid windowtext .75pt;">能保护部分通道</td><td valign="top" width="194" style="BORDER-RIGHT: windowtext 1pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: #ece9d8; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: #ece9d8; WIDTH: 145.25pt; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 1pt solid; BACKGROUND-COLOR: transparent; mso-border-alt: solid windowtext .75pt; mso-border-left-alt: solid windowtext .75pt; mso-border-top-alt: solid windowtext .75pt;">能保护部分通道</td><td valign="top" width="194" style="BORDER-RIGHT: windowtext 1pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: #ece9d8; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: #ece9d8; WIDTH: 145.25pt; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 1pt solid; BACKGROUND-COLOR: transparent; mso-border-alt: solid windowtext .75pt; mso-border-left-alt: solid windowtext .75pt; mso-border-top-alt: solid windowtext .75pt;">基于复用段级别的通道</td></tr><tr style="mso-yfti-irow: 3;"><td valign="top" width="194" style="BORDER-RIGHT: windowtext 1pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: #ece9d8; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: windowtext 1pt solid; WIDTH: 145.25pt; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 1pt solid; BACKGROUND-COLOR: transparent; mso-border-alt: solid windowtext .75pt; mso-border-top-alt: solid windowtext .75pt;">专用保护机制</td><td valign="top" width="194" style="BORDER-RIGHT: windowtext 1pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: #ece9d8; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: #ece9d8; WIDTH: 145.25pt; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 1pt solid; BACKGROUND-COLOR: transparent; mso-border-alt: solid windowtext .75pt; mso-border-left-alt: solid windowtext .75pt; mso-border-top-alt: solid windowtext .75pt;">专用保护机制</td><td valign="top" width="194" style="BORDER-RIGHT: windowtext 1pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: #ece9d8; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: #ece9d8; WIDTH: 145.25pt; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 1pt solid; BACKGROUND-COLOR: transparent; mso-border-alt: solid windowtext .75pt; mso-border-left-alt: solid windowtext .75pt; mso-border-top-alt: solid windowtext .75pt;">共享或专用保护机制</td></tr><tr style="mso-yfti-irow: 4;"><td valign="top" width="194" style="BORDER-RIGHT: windowtext 1pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: #ece9d8; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: windowtext 1pt solid; WIDTH: 145.25pt; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 1pt solid; BACKGROUND-COLOR: transparent; mso-border-alt: solid windowtext .75pt; mso-border-top-alt: solid windowtext .75pt;">仅用于环状拓扑，环上节点数没有限制</td><td valign="top" width="194" style="BORDER-RIGHT: windowtext 1pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: #ece9d8; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: #ece9d8; WIDTH: 145.25pt; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 1pt solid; BACKGROUND-COLOR: transparent; mso-border-alt: solid windowtext .75pt; mso-border-left-alt: solid windowtext .75pt; mso-border-top-alt: solid windowtext .75pt;">可用于各种网络拓扑，环上节点数没有限制</td><td valign="top" width="194" style="BORDER-RIGHT: windowtext 1pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: #ece9d8; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: #ece9d8; WIDTH: 145.25pt; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 1pt solid; BACKGROUND-COLOR: transparent; mso-border-alt: solid windowtext .75pt; mso-border-left-alt: solid windowtext .75pt; mso-border-top-alt: solid windowtext .75pt;">仅用于环状拓扑，环上节点数要求不大于16</td></tr><tr style="mso-yfti-irow: 5;"><td valign="top" width="194" style="BORDER-RIGHT: windowtext 1pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: #ece9d8; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: windowtext 1pt solid; WIDTH: 145.25pt; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 1pt solid; BACKGROUND-COLOR: transparent; mso-border-alt: solid windowtext .75pt; mso-border-top-alt: solid windowtext .75pt;">发送端永久桥接，接收端倒换</td><td valign="top" width="194" style="BORDER-RIGHT: windowtext 1pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: #ece9d8; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: #ece9d8; WIDTH: 145.25pt; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 1pt solid; BACKGROUND-COLOR: transparent; mso-border-alt: solid windowtext .75pt; mso-border-left-alt: solid windowtext .75pt; mso-border-top-alt: solid windowtext .75pt;">发送端永久桥接，接收端倒换</td><td valign="top" width="194" style="BORDER-RIGHT: windowtext 1pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: #ece9d8; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: #ece9d8; WIDTH: 145.25pt; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 1pt solid; BACKGROUND-COLOR: transparent; mso-border-alt: solid windowtext .75pt; mso-border-left-alt: solid windowtext .75pt; mso-border-top-alt: solid windowtext .75pt;">桥接与倒换在动作时才发生，首端/尾端常常既是桥接节点又是倒换节点</td></tr><tr style="mso-yfti-irow: 6;"><td valign="top" width="194" style="BORDER-RIGHT: windowtext 1pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: #ece9d8; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: windowtext 1pt solid; WIDTH: 145.25pt; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 1pt solid; BACKGROUND-COLOR: transparent; mso-border-alt: solid windowtext .75pt; mso-border-top-alt: solid windowtext .75pt;">单端倒换</td><td valign="top" width="194" style="BORDER-RIGHT: windowtext 1pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: #ece9d8; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: #ece9d8; WIDTH: 145.25pt; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 1pt solid; BACKGROUND-COLOR: transparent; mso-border-alt: solid windowtext .75pt; mso-border-left-alt: solid windowtext .75pt; mso-border-top-alt: solid windowtext .75pt;">单端倒换</td><td valign="top" width="194" style="BORDER-RIGHT: windowtext 1pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: #ece9d8; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: #ece9d8; WIDTH: 145.25pt; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 1pt solid; BACKGROUND-COLOR: transparent; mso-border-alt: solid windowtext .75pt; mso-border-left-alt: solid windowtext .75pt; mso-border-top-alt: solid windowtext .75pt;">环倒换</td></tr><tr style="mso-yfti-irow: 7;"><td valign="top" width="194" style="BORDER-RIGHT: windowtext 1pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: #ece9d8; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: windowtext 1pt solid; WIDTH: 145.25pt; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 1pt solid; BACKGROUND-COLOR: transparent; mso-border-alt: solid windowtext .75pt; mso-border-top-alt: solid windowtext .75pt;">仅通过

P无法构造双DNI 的保护结构</td><td valign="top" width="194" style="BORDER-RIGHT: windowtext 1pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: #ece9d8; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: #ece9d8; WIDTH: 145.25pt; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 1pt solid; BACKGROUND-COLOR: transparent; mso-border-alt: solid windowtext .75pt; mso-border-left-alt: solid windowtext .75pt; mso-border-top-alt: solid windowtext .75pt;">通过SNCP可以构造双DNI 的保护结构</td><td valign="top" width="194" style="BORDER-RIGHT: windowtext 1pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: #ece9d8; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: #ece9d8; WIDTH: 145.25pt; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 1pt solid; BACKGROUND-COLOR: transparent; mso-border-alt: solid windowtext .75pt; mso-border-left-alt: solid windowtext .75pt; mso-border-top-alt: solid windowtext .75pt;">仅通过MSP无法构造双DNI 的保护结构</td></tr><tr style="mso-yfti-irow: 8;"><td valign="top" width="194" style="BORDER-RIGHT: windowtext 1pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: #ece9d8; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: windowtext 1pt solid; WIDTH: 145.25pt; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 1pt solid; BACKGROUND-COLOR: transparent; mso-border-alt: solid windowtext .75pt; mso-border-top-alt: solid windowtext .75pt;">不需要APS协议，可靠性高</td><td valign="top" width="194" style="BORDER-RIGHT: windowtext 1pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: #ece9d8; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: #ece9d8; WIDTH: 145.25pt; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 1pt solid; BACKGROUND-COLOR: transparent; mso-border-alt: solid windowtext .75pt; mso-border-left-alt: solid windowtext .75pt; mso-border-top-alt: solid windowtext .75pt;">不需要APS协议，可靠性高</td><td valign="top" width="194" style="BORDER-RIGHT: windowtext 1pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: #ece9d8; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: #ece9d8; WIDTH: 145.25pt; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 1pt solid; BACKGROUND-COLOR: transparent; mso-border-alt: solid windowtext .75pt; mso-border-left-alt: solid windowtext .75pt; mso-border-top-alt: solid windowtext .75pt;">需要全环运行APS协议，可靠性较差</td></tr><tr style="mso-yfti-irow: 9;"><td valign="top" width="194" style="BORDER-RIGHT: windowtext 1pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: #ece9d8; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: windowtext 1pt solid; WIDTH: 145.25pt; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 1pt solid; BACKGROUND-COLOR: transparent; mso-border-alt: solid windowtext .75pt; mso-border-top-alt: solid windowtext .75pt;">芯片支持，倒换非常快(<=10ms)；且与业务数量无关</td><td valign="top" width="194" style="BORDER-RIGHT: windowtext 1pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: #ece9d8; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: #ece9d8; WIDTH: 145.25pt; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 1pt solid; BACKGROUND-COLOR: transparent; mso-border-alt: solid windowtext .75pt; mso-border-left-alt: solid windowtext .75pt; mso-border-top-alt: solid windowtext .75pt;">业务量很少时，时间常常能得到保障。业务量较多时，倒换时间不容易保证</td><td valign="top" width="194" style="BORDER-RIGHT: windowtext 1pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: #ece9d8; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: #ece9d8; WIDTH: 145.25pt; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 1pt solid; BACKGROUND-COLOR: transparent; mso-border-alt: solid windowtext .75pt; mso-border-left-alt: solid windowtext .75pt; mso-border-top-alt: solid windowtext .75pt;">倒换时间在50ms之内，且与业务数量无关</td></tr><tr style="mso-yfti-irow: 10; mso-yfti-lastrow: yes;"><td valign="top" width="194" style="BORDER-RIGHT: windowtext 1pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: #ece9d8; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: windowtext 1pt solid; WIDTH: 145.25pt; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 1pt solid; BACKGROUND-COLOR: transparent; mso-border-alt: solid windowtext .75pt; mso-border-top-alt: solid windowtext .75pt;">一般监测通道开销</td><td valign="top" width="194" style="BORDER-RIGHT: windowtext 1pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: #ece9d8; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: #ece9d8; WIDTH: 145.25pt; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 1pt solid; BACKGROUND-COLOR: transparent; mso-border-alt: solid windowtext .75pt; mso-border-left-alt: solid windowtext .75pt; mso-border-top-alt: solid windowtext .75pt;">一般监测通道开销</td><td valign="top" width="194" style="BORDER-RIGHT: windowtext 1pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: #ece9d8; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: #ece9d8; WIDTH: 145.25pt; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 1pt solid; BACKGROUND-COLOR: transparent; mso-border-alt: solid windowtext .75pt; mso-border-left-alt: solid windowtext .75pt; mso-border-top-alt: solid windowtext .75pt;">监测复用段开销</td></tr></tbody></table></div>

时间: 2007-9-28 17:34

作者: 六月格格

收了，谢谢楼主

时间: 2007-9-29 09:28

作者: lovelyshanyu

收到，好贴！猛顶一把

时间: 2007-9-29 10:07

作者: hanshenglong

不错

时间: 2007-9-29 15:41

作者: myheart527

呵呵，这三种保护方案也是目前最主流的不过MSP和PP还是多一点，收藏了，谢谢楼主

时间: 2007-9-29 21:38

作者: ttlyxyuxin

分析得挺全面阿

时间: 2007-9-30 15:54

作者: shy114

收藏，谢谢！！

时间: 2007-9-30 15:59

作者: 服务生

好!

时间: 2007-10-2 16:33

作者: hemouren

好东西，谢谢楼主

时间: 2008-1-17 16:05

作者: httpxp

顶

时间: 2008-1-22 19:38

作者: huang_wz

路过,预祝:新年快乐!

时间: 2008-1-23 22:30

作者: camus123

嗯，总结的挺全的，呵呵

时间: 2008-2-21 23:05

作者: h_17017

还不够全面，如SNCP与PP实现的单板等

时间: 2008-2-24 21:50

作者: alenxxj

    谢谢LZ的资料

时间: 2008-2-25 20:18

作者: rexhong

学习了。。。。。。。。。

时间: 2008-3-2 16:35

作者: victorfish

其中有些什么差异，我觉得应该结合他们的保护原理阐述下。  楼主可以再发一贴详细些的  期待中！！！

时间: 2008-3-3 09:47

作者: ccyulihua

是呀，能否再详细一些，谢谢

时间: 2008-3-3 09:55

作者: ccyulihua

现在在不同层面有采用不同的保护技术，如在接入层、汇聚层分别应用不同的技术，能否详细分析一下？？

时间: 2009-9-26 10:41

作者: jallan515

好贴，不过MSP只能显示一半，能否编辑一下

时间: 2009-10-1 17:13

作者: pushu886

收下了，谢谢

时间: 2009-12-31 17:40

作者: haohit

MSP不只是用于环状拓扑结构吧，链状网络也有MSP保护

时间: 2010-1-7 13:31

作者: rqm222

求楼主发更详细的资料，谢谢了~

时间: 2010-9-23 10:52

作者: futher60

嗯收藏了谢谢

时间: 2011-11-10 16:22

作者: Paradise2011

谢谢楼主，同求更详细的资料！

时间: 2011-11-10 16:36

作者: lirf2007

收了，谢谢！在学习阶段

时间: 2013-7-23 00:13

作者: 传输小子

为什么我看到的是乱码来的呢

时间: 2014-12-3 12:30

作者: 13624069469

看不到啊?!乱的都

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