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[Sonet/SDH] [原创]AU-AIS的检测及产生 [复制链接]

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亚星游戏官网-yaxin222  新兵

注册:2008-1-4
发表于 2008-3-10 19:15:00 |显示全部楼层
<p>第一次来这里发帖子:</p><p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 问个专业的问题:</p><p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 关于AU-AIS的产生, <span lang="EN-US" style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman'; mso-fareast-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA;">ITU-T Rec. G.707/Y.1322 (01/2007)中有这么样一段话:</span></p><p><span lang="EN-US" style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman'; mso-fareast-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA;">&nbsp;&nbsp; The Administrative Unit AIS (AU-AIS) is specified as all "1"s in the entire AU-n (n=3, 4, 4-Xc), including the AU-n pointer.</span></p><p><span lang="EN-US" style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman'; mso-fareast-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA;">&nbsp; 这是否说明</span></p><p><span lang="EN-US" style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman'; mso-fareast-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 问题1、产生AU-AIS时必须将指针及整个净荷都置1?</span></p><p><span lang="EN-US" style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman'; mso-fareast-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 问题2、指针置全1时,是否需要将Y字节也置为全1?</span></p><p><span lang="EN-US" style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman'; mso-fareast-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA;">&nbsp; </span></p>

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