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标题: 求助：低阶交叉问题 [查看完整版帖子] [打印本页]
时间: 2007-1-26 14:20
作者: sjy2005
标题: 求助：低阶交叉问题
<span lang="EN-US" style="FONT-SIZE: 10.5pt; FONT-FAMILY: "Times New Roman"; mso-bidi-font-size: 12.0pt; mso-fareast-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA;"><font color="#666666" size="2"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial;"><p><font size="3"><font color="#000000"><span style="mso-font-kerning: 1.0pt; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman"; mso-bidi-font-family: "Times New Roman";">华为</span><span lang="EN-US" style="FONT-FAMILY: "Times New Roman"; mso-font-kerning: 1.0pt;">OSN3500</span><span style="mso-font-kerning: 1.0pt; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman"; mso-bidi-font-family: "Times New Roman";">设备，低阶交叉容量为</span><chmetcnv wst="on" unitname="g" sourcevalue="5" hasspace="False" negative="False" numbertype="1" tcsc="0"><span lang="EN-US" style="FONT-FAMILY: "Times New Roman"; mso-font-kerning: 1.0pt;">5G</span></chmetcnv><span style="mso-font-kerning: 1.0pt; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman"; mso-bidi-font-family: "Times New Roman";">，配置</span><span lang="EN-US" style="FONT-FAMILY: "Times New Roman"; mso-font-kerning: 1.0pt;">7</span><span style="mso-font-kerning: 1.0pt; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman"; mso-bidi-font-family: "Times New Roman";">块</span><span lang="EN-US" style="FONT-FAMILY: "Times New Roman"; mso-font-kerning: 1.0pt;">
Q1</span><span style="mso-font-kerning: 1.0pt; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman"; mso-bidi-font-family: "Times New Roman";">板和</span><span lang="EN-US" style="FONT-FAMILY: "Times New Roman"; mso-font-kerning: 1.0pt;">1</span><span style="mso-font-kerning: 1.0pt; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman"; mso-bidi-font-family: "Times New Roman";">块</span><span lang="EN-US" style="FONT-FAMILY: "Times New Roman"; mso-font-kerning: 1.0pt;">EFSO</span><span style="mso-font-kerning: 1.0pt; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman"; mso-bidi-font-family: "Times New Roman";">板（</span><span lang="EN-US" style="FONT-FAMILY: "Times New Roman"; mso-font-kerning: 1.0pt;">8</span><span style="mso-font-kerning: 1.0pt; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman"; mso-bidi-font-family: "Times New Roman";">路接口板），</span><span lang="EN-US" style="FONT-FAMILY: "Times New Roman"; mso-font-kerning: 1.0pt;">EFSO</span><span style="mso-font-kerning: 1.0pt; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman"; mso-bidi-font-family: "Times New Roman";">用了</span><span lang="EN-US" style="FONT-FAMILY: "Times New Roman"; mso-font-kerning: 1.0pt;">3</span><span style="mso-font-kerning: 1.0pt; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman"; mso-bidi-font-family: "Times New Roman";">路。另外配置了</span><span lang="EN-US" style="FONT-FAMILY: "Times New Roman"; mso-font-kerning: 1.0pt;">2</span><span style="mso-font-kerning: 1.0pt; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman"; mso-bidi-font-family: "Times New Roman";">架</span><span lang="EN-US" style="FONT-FAMILY: "Times New Roman"; mso-font-kerning: 1.0pt;">Metro2050</span><span style="mso-font-kerning: 1.0pt; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman"; mso-bidi-font-family: "Times New Roman";">作为扩展子架，每个扩展子架配置</span><span lang="EN-US" style="FONT-FAMILY: "Times New Roman"; mso-font-kerning: 1.0pt;">8</span><span style="mso-font-kerning: 1.0pt; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman"; mso-bidi-font-family: "Times New Roman";">块</span><span lang="EN-US" style="FONT-FAMILY: "Times New Roman"; mso-font-kerning: 1.0pt;">D1</span><span style="mso-font-kerning: 1.0pt; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman"; mso-bidi-font-family: "Times New Roman";">，采用</span><span lang="EN-US" style="FONT-FAMILY: "Times New Roman"; mso-font-kerning: 1.0pt;">SNCP</span><span style="mso-font-kerning: 1.0pt; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman"; mso-bidi-font-family: "Times New Roman";">方式组网。设备低阶交叉容量不够了，请问为什么系统低阶交叉容量会不够用？感谢！！！</span></font></font><span lang="EN-US" style="FONT-FAMILY: "Times New Roman"; mso-font-kerning: 1.0pt;"><p></p></span></p><p align="left"><p></p><font size="1"><span lang="EN-US" style="FONT-SIZE: 10.5pt; FONT-FAMILY: "Times New Roman"; mso-bidi-font-size: 12.0pt; mso-fareast-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA;"></span></font></p></span></font></span><p></p><font size="1"><span lang="EN-US" style="FONT-SIZE: 10.5pt; FONT-FAMILY: "Times New Roman"; mso-bidi-font-size: 12.0pt; mso-fareast-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA;"></span></font>
[此贴子已经被作者于2007-1-26 14:29:11编辑过]
时间: 2007-1-26 14:23
作者: stone0101
兄弟把字体改大点吧，看不清～
时间: 2007-1-26 15:02
作者: 小谢清发
<p><font size="2">对于2.5GMSTP设备，如果低阶矩阵小于64个等效VC-4，将产生阻塞。具体计算说明：假设要将一个2.5G环路/链路信号完全以低阶信号终结，在东西2个群路侧，2个2.5G光口等效为16＋16＝32个VC-4，在支路侧，需终结等效16x2＝32个VC-4，因此低阶等效VC-4的处理能力为：16＋16＋16x2＝64等效VC-4。</font></p><p><font size="2">如果是10G设备，大家可以由此推算，低阶处理能力不能低于：64＋64＋64x2＝256等效VC-4。</font></p><p><font size="2">大家可以看到这是假设完全以低阶信号形式终结一个2.5G/10G的环/链的情况。目前MSTP产品都支持多光口组网，比如OSN3500，应该是支持4x10G，8x2.5G，而其低阶矩阵仅设计为5G，大家可以算一下，等效仅32个VC-4，业务多点，低阶是很容易不满足要求的。</font></p>
[此贴子已经被作者于2007-1-26 15:03:57编辑过]
时间: 2009-9-7 19:46
作者: ericjon
楼上厉害~学习ing~
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