{"id":475926,"date":"2023-08-09T07:24:43","date_gmt":"2023-08-09T07:24:43","guid":{"rendered":""},"modified":"2023-09-05T11:11:38","modified_gmt":"2023-09-05T11:11:38","slug":"asynchronous-transfer-mode","status":"publish","type":"wiki","link":"https:\/\/oneproxy.pro\/cn\/wiki\/asynchronous-transfer-mode\/","title":{"rendered":"\u5f02\u6b65\u4f20\u8f93\u6a21\u5f0f"},"content":{"rendered":"<p>\u5f02\u6b65\u4f20\u8f93\u6a21\u5f0f (ATM) \u662f\u4e00\u79cd\u9ad8\u901f\u7f51\u7edc\u6280\u672f\uff0c\u5e7f\u6cdb\u7528\u4e8e\u5728\u5c40\u57df\u7f51\u548c\u5e7f\u57df\u7f51\u4e0a\u4f20\u8f93\u6570\u636e\u3001\u8bed\u97f3\u548c\u89c6\u9891\u3002\u5b83\u662f\u4e00\u79cd\u81ea 20 \u4e16\u7eaa 80 \u5e74\u4ee3\u672b\u4ee5\u6765\u5c31\u5df2\u5b58\u5728\u7684\u4ea4\u6362\u548c\u591a\u8def\u590d\u7528\u6280\u672f\uff0c\u65e8\u5728\u63d0\u4f9b\u8bbe\u5907\u4e4b\u95f4\u9ad8\u6548\u53ef\u9760\u7684\u901a\u4fe1\u3002ATM \u56e0\u5176\u80fd\u591f\u9002\u5e94\u5177\u6709\u4e0d\u540c\u670d\u52a1\u8d28\u91cf\u8981\u6c42\u7684\u5404\u79cd\u6d41\u91cf\u7c7b\u578b\u800c\u5e7f\u53d7\u6b22\u8fce\u3002\u672c\u6587\u5c06\u6df1\u5165\u63a2\u8ba8\u5f02\u6b65\u4f20\u8f93\u6a21\u5f0f\u7684\u5386\u53f2\u3001\u529f\u80fd\u3001\u7c7b\u578b\u3001\u5e94\u7528\u548c\u672a\u6765\u524d\u666f\u3002<\/p>\n<h2>\u5f02\u6b65\u4f20\u8f93\u6a21\u5f0f\u7684\u5386\u53f2<\/h2>\n<p>\u5f02\u6b65\u4f20\u8f93\u6a21\u5f0f\u7684\u8d77\u6e90\u53ef\u4ee5\u8ffd\u6eaf\u5230 20 \u4e16\u7eaa 80 \u5e74\u4ee3\u672b\uff0c\u5f53\u65f6\u56fd\u9645\u7535\u62a5\u7535\u8bdd\u54a8\u8be2\u59d4\u5458\u4f1a (CCITT) \u9996\u6b21\u5c06\u5176\u4f5c\u4e3a\u5bbd\u5e26\u7efc\u5408\u4e1a\u52a1\u6570\u5b57\u7f51\u7edc (B-ISDN) \u5efa\u8bae\u7684\u4e00\u90e8\u5206\u5f15\u5165\u3002ATM \u7684\u6700\u521d\u6982\u5ff5\u65e8\u5728\u4f7f\u7528\u56fa\u5b9a\u5927\u5c0f\u7684\u5355\u5143\u627f\u8f7d\u5404\u79cd\u6d41\u91cf\u7c7b\u578b\uff0c\u5305\u62ec\u8bed\u97f3\u3001\u6570\u636e\u548c\u89c6\u9891\uff0c\u800c\u4f20\u7edf\u7684\u5206\u7ec4\u4ea4\u6362\u7f51\u7edc\u5219\u4f7f\u7528\u53ef\u53d8\u5927\u5c0f\u7684\u6570\u636e\u5305\u3002<\/p>\n<h2>\u6709\u5173\u5f02\u6b65\u4f20\u8f93\u6a21\u5f0f\u7684\u8be6\u7ec6\u4fe1\u606f<\/h2>\n<p>\u5f02\u6b65\u4f20\u8f93\u6a21\u5f0f\u662f\u4e00\u79cd\u57fa\u4e8e\u5355\u5143\u7684\u4ea4\u6362\u6280\u672f\uff0c\u5b83\u5c06\u6570\u636e\u5206\u6210\u79f0\u4e3a\u5355\u5143\u7684\u56fa\u5b9a\u5927\u5c0f\u7684\u5c0f\u5355\u5143\uff0c\u6bcf\u4e2a\u5355\u5143\u7531 53 \u4e2a\u5b57\u8282\u7ec4\u6210\u3002\u5355\u5143\u7ed3\u6784\u5305\u62ec 5 \u4e2a\u5b57\u8282\u7684\u6807\u5934\u548c 48 \u4e2a\u5b57\u8282\u7684\u6709\u6548\u8d1f\u8f7d\u3002\u56fa\u5b9a\u5355\u5143\u5927\u5c0f\u53ef\u786e\u4fdd\u4e00\u81f4\u6027\u548c\u53ef\u9884\u6d4b\u7684\u4f20\u8f93\u65f6\u95f4\uff0c\u4ece\u800c\u6709\u52a9\u4e8e\u5b9e\u73b0\u9ad8\u6548\u7684\u6570\u636e\u4f20\u8f93\u3002<\/p>\n<p>ATM \u57fa\u4e8e\u865a\u62df\u7535\u8def\u8fd0\u884c\uff0c\u5728\u7aef\u70b9\u4e4b\u95f4\u5efa\u7acb\u903b\u8f91\u8def\u5f84\u4ee5\u8fdb\u884c\u6570\u636e\u4f20\u8f93\u3002\u865a\u62df\u7535\u8def\u6709\u4e24\u79cd\u7c7b\u578b\uff1a\u6c38\u4e45\u865a\u62df\u7535\u8def (PVC) \u548c\u4ea4\u6362\u865a\u62df\u7535\u8def (SVC)\u3002PVC \u662f\u9884\u5148\u914d\u7f6e\u7684\uff0c\u53ef\u5728\u7aef\u70b9\u4e4b\u95f4\u63d0\u4f9b\u4e00\u81f4\u7684\u8fde\u63a5\uff0c\u800c SVC \u5219\u662f\u6839\u636e\u9700\u8981\u52a8\u6001\u5efa\u7acb\u7684\u3002<\/p>\n<h2>\u5f02\u6b65\u4f20\u8f93\u6a21\u5f0f\u7684\u5185\u90e8\u7ed3\u6784<\/h2>\n<p>ATM \u7f51\u7edc\u901a\u5e38\u7531\u4e09\u4e2a\u4e3b\u8981\u90e8\u5206\u7ec4\u6210\uff1a<\/p>\n<ol>\n<li>\n<p><strong>ATM \u4ea4\u6362\u673a<\/strong>\uff1a\u8fd9\u4e9b\u662f\u8d1f\u8d23\u6839\u636e\u4fe1\u5143\u5934\u4e2d\u7684\u4fe1\u606f\u8def\u7531\u548c\u4ea4\u6362 ATM \u4fe1\u5143\u7684\u6838\u5fc3\u8bbe\u5907\u3002<\/p>\n<\/li>\n<li>\n<p><strong>ATM \u7aef\u70b9<\/strong>\uff1a\u8fd9\u4e9b\u662f\u751f\u6210\u548c\u63a5\u6536 ATM \u4fe1\u5143\u7684\u8bbe\u5907\u3002\u5b83\u4eec\u53ef\u4ee5\u662f\u8ba1\u7b97\u673a\u3001\u8def\u7531\u5668\u6216\u5176\u4ed6\u7f51\u7edc\u8bbe\u5907\u3002<\/p>\n<\/li>\n<li>\n<p><strong>ATM\u4f20\u8f93\u4ecb\u8d28<\/strong>\uff1a\u4f20\u8f93 ATM \u4fe1\u5143\u7684\u7269\u7406\u4ecb\u8d28\uff0c\u4f8b\u5982\u5149\u7ea4\u6216\u94dc\u7f06\u3002<\/p>\n<\/li>\n<\/ol>\n<h2>\u5f02\u6b65\u4f20\u8f93\u6a21\u5f0f\u4e3b\u8981\u7279\u5f81\u5206\u6790<\/h2>\n<p>\u5f02\u6b65\u4f20\u8f93\u6a21\u5f0f\u63d0\u4f9b\u4e86\u51e0\u4e2a\u5173\u952e\u7279\u6027\uff0c\u4f7f\u5176\u6210\u4e3a\u9ad8\u901f\u901a\u4fe1\u7684\u4e00\u4e2a\u6709\u5438\u5f15\u529b\u7684\u9009\u62e9\uff1a<\/p>\n<ul>\n<li>\n<p><strong>\u9ad8\u901f<\/strong>\uff1aATM \u63d0\u4f9b\u7684\u6570\u636e\u4f20\u8f93\u901f\u7387\u4ece 1.544 Mbps (T1) \u5230 622 Mbps (OC-12) \u53ca\u66f4\u9ad8\uff0c\u9002\u5408\u4e8e\u5e26\u5bbd\u5bc6\u96c6\u578b\u5e94\u7528\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u670d\u52a1\u8d28\u91cf (QoS)<\/strong>\uff1aATM \u652f\u6301\u591a\u79cd\u670d\u52a1\u7c7b\u522b\uff0c\u5141\u8bb8\u6839\u636e\u7279\u5b9a\u8981\u6c42\u5bf9\u4e0d\u540c\u6d41\u91cf\u7c7b\u578b\u8fdb\u884c\u4f18\u5148\u6392\u5e8f\uff0c\u786e\u4fdd\u5173\u952e\u5e94\u7528\u7a0b\u5e8f\u83b7\u5f97\u66f4\u9ad8\u7684\u4f18\u5148\u7ea7\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u53ef\u6269\u5c55\u6027<\/strong>\uff1aATM \u7f51\u7edc\u53ef\u4ee5\u8f7b\u677e\u5bb9\u7eb3\u5927\u91cf\u8bbe\u5907\u548c\u7528\u6237\uff0c\u9002\u5408\u4e0d\u65ad\u53d1\u5c55\u7684\u7f51\u7edc\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u6548\u7387<\/strong>\uff1aATM \u7684\u56fa\u5b9a\u5927\u5c0f\u5355\u5143\u7ed3\u6784\u51cf\u5c11\u4e86\u5904\u7406\u5f00\u9500\uff0c\u5e76\u4e14\u4e0d\u9700\u8981\u5728\u4e2d\u95f4\u4ea4\u6362\u673a\u4e0a\u8fdb\u884c\u8def\u7531\u51b3\u7b56\uff0c\u4ece\u800c\u63d0\u9ad8\u4e86\u7f51\u7edc\u5229\u7528\u7387\u3002<\/p>\n<\/li>\n<\/ul>\n<h2>\u5f02\u6b65\u4f20\u8f93\u6a21\u5f0f\u7684\u7c7b\u578b<\/h2>\n<p>ATM \u6280\u672f\u4e3b\u8981\u53ef\u5206\u4e3a\u4e24\u5927\u7c7b\uff1a<\/p>\n<ol>\n<li>\n<p><strong>SONET\/SDH \u4e0a\u7684 ATM<\/strong>\uff1a\u5728\u6b64\u914d\u7f6e\u4e2d\uff0cATM \u5355\u5143\u5c01\u88c5\u5728\u540c\u6b65\u5149\u7ea4\u7f51\u7edc (SONET) \u6216\u540c\u6b65\u6570\u5b57\u4f53\u7cfb (SDH) \u5e27\u4e2d\u3002\u8fd9\u6837\u53ef\u4ee5\u5c06 ATM \u4e0e\u73b0\u6709\u7684 SONET\/SDH \u7f51\u7edc\u96c6\u6210\u3002<\/p>\n<\/li>\n<li>\n<p><strong>IP\/MPLS \u4e0a\u7684 ATM<\/strong>\uff1a\u6b64\u65b9\u6cd5\u6d89\u53ca\u5c06 ATM \u4fe1\u5143\u5c01\u88c5\u5728 IP \u6216\u591a\u534f\u8bae\u6807\u7b7e\u4ea4\u6362 (MPLS) \u6570\u636e\u5305\u4e2d\u3002\u5b83\u6709\u52a9\u4e8e ATM \u548c IP\/MPLS \u7f51\u7edc\u7684\u878d\u5408\uff0c\u4ece\u800c\u5b9e\u73b0\u66f4\u5927\u7684\u7075\u6d3b\u6027\u548c\u6210\u672c\u6548\u76ca\u3002<\/p>\n<\/li>\n<\/ol>\n<p>\u4ee5\u4e0b\u662f\u4e24\u79cd\u7c7b\u578b\u7684\u6bd4\u8f83\u8868\uff1a<\/p>\n<table>\n<thead>\n<tr>\n<th><strong>\u7c7b\u578b<\/strong><\/th>\n<th><strong>\u4f18\u70b9<\/strong><\/th>\n<th><strong>\u7f3a\u70b9<\/strong><\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>SONET\/SDH \u4e0a\u7684 ATM<\/td>\n<td>\u2013 \u4e0e\u4f20\u7edf\u7f51\u7edc\u65e0\u7f1d\u96c6\u6210<\/td>\n<td>\u2013 \u4e13\u7528\u8fd0\u8f93\u5bfc\u81f4\u6210\u672c\u66f4\u9ad8<\/td>\n<\/tr>\n<tr>\n<td><\/td>\n<td>\u2013 \u53ef\u9760\u4e14\u6210\u719f\u7684\u6280\u672f<\/td>\n<td>\u2013 \u672a\u6765\u589e\u957f\u7684\u53ef\u6269\u5c55\u6027\u6709\u9650<\/td>\n<\/tr>\n<tr>\n<td><\/td>\n<td>\u2013 \u51fa\u8272\u7684 QoS \u652f\u6301<\/td>\n<td><\/td>\n<\/tr>\n<tr>\n<td>IP\/MPLS \u4e0a\u7684 ATM<\/td>\n<td>\u2013 \u7ecf\u6d4e\u9ad8\u6548\u7684\u89e3\u51b3\u65b9\u6848<\/td>\n<td>\u2013 \u53ef\u80fd\u5b58\u5728 QoS \u95ee\u9898<\/td>\n<\/tr>\n<tr>\n<td><\/td>\n<td>\u2013 \u53ef\u6269\u5c55\u6027\u548c\u7075\u6d3b\u6027<\/td>\n<td>\u2013 \u7f51\u7edc\u8bbe\u8ba1\u7684\u989d\u5916\u590d\u6742\u6027<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>\u5f02\u6b65\u4f20\u8f93\u6a21\u5f0f\u7684\u4f7f\u7528\u65b9\u6cd5\u53ca\u76f8\u5173\u6311\u6218<\/h2>\n<p>ATM \u5df2\u88ab\u5e7f\u6cdb\u5e94\u7528\u4e8e\u5404\u79cd\u5e94\u7528\u9886\u57df\uff0c\u5176\u4e2d\u5305\u62ec\uff1a<\/p>\n<ol>\n<li>\n<p><strong>\u7535\u4fe1<\/strong>\uff1aATM \u7528\u4e8e\u7535\u4fe1\u7f51\u7edc\u4e2d\uff0c\u7279\u522b\u662f\u6838\u5fc3\u9aa8\u5e72\u7f51\u7edc\u4e2d\u9ad8\u6548\u4f20\u8f93\u8bed\u97f3\u548c\u6570\u636e\u6d41\u91cf\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u89c6\u9891\u6d41<\/strong>\uff1a\u7531\u4e8e ATM \u80fd\u591f\u5904\u7406\u9ad8\u5e26\u5bbd\u8981\u6c42\uff0c\u56e0\u6b64\u7528\u4e8e\u5b9e\u65f6\u6570\u636e\u4f20\u8f93\u81f3\u5173\u91cd\u8981\u7684\u89c6\u9891\u6d41\u5e94\u7528\u3002<\/p>\n<\/li>\n<li>\n<p><strong>LAN \u548c WAN \u8fde\u63a5<\/strong>\uff1aATM\u7528\u4e8e\u4f01\u4e1a\u3001\u4e8b\u4e1a\u5355\u4f4d\u5185\u90e8\u8fde\u63a5\u5c40\u57df\u7f51\uff08LAN\uff09\u548c\u5e7f\u57df\u7f51\uff08WAN\uff09\u3002<\/p>\n<\/li>\n<\/ol>\n<p>\u7136\u800c\uff0cATM \u867d\u7136\u5177\u6709\u8bf8\u591a\u4f18\u52bf\uff0c\u4f46\u4e5f\u9762\u4e34\u7740\u4e00\u4e9b\u6311\u6218\uff1a<\/p>\n<ul>\n<li>\n<p><strong>\u590d\u6742<\/strong>\uff1a\u7531\u4e8e\u4f7f\u7528\u865a\u62df\u7535\u8def\u5e76\u4e14\u9700\u8981\u7279\u5b9a\u7684 QoS \u914d\u7f6e\uff0cATM \u7f51\u7edc\u7684\u8bbe\u7f6e\u548c\u7ba1\u7406\u53ef\u80fd\u5f88\u590d\u6742\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u6210\u672c<\/strong>\uff1a\u4e0e\u5176\u4ed6\u7f51\u7edc\u6280\u672f\u76f8\u6bd4\uff0c\u5b9e\u65bd ATM \u57fa\u7840\u8bbe\u65bd\u7684\u6210\u672c\u53ef\u80fd\u5f88\u9ad8\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u65e7\u8bbe\u5907<\/strong>\uff1a\u4ece\u73b0\u6709\u6280\u672f\u5347\u7ea7\u5230 ATM \u53ef\u80fd\u9700\u8981\u5927\u91cf\u6295\u8d44\uff0c\u5e76\u4e14\u4e0e\u4f20\u7edf\u8bbe\u5907\u5b58\u5728\u517c\u5bb9\u6027\u95ee\u9898\u3002<\/p>\n<\/li>\n<\/ul>\n<h2>\u4e3b\u8981\u7279\u70b9\u53ca\u540c\u7c7b\u4ea7\u54c1\u6bd4\u8f83<\/h2>\n<p>\u4ee5\u4e0b\u662f ATM \u4e0e\u7c7b\u4f3c\u7f51\u7edc\u672f\u8bed\u7684\u4e3b\u8981\u7279\u5f81\u548c\u6bd4\u8f83\u7684\u5217\u8868\uff1a<\/p>\n<ol>\n<li>\n<p><strong>ATM \u4e0e\u4ee5\u592a\u7f51<\/strong>\uff1aATM \u63d0\u4f9b\u53ef\u9884\u6d4b\u7684 QoS\uff0c\u9002\u7528\u4e8e\u65f6\u95f4\u654f\u611f\u7684\u5e94\u7528\u7a0b\u5e8f\uff0c\u800c\u4ee5\u592a\u7f51\u5177\u6709\u6210\u672c\u6548\u76ca\uff0c\u5e7f\u6cdb\u7528\u4e8e LAN \u8fde\u63a5\u3002<\/p>\n<\/li>\n<li>\n<p><strong>ATM \u4e0e\u5e27\u4e2d\u7ee7<\/strong>\uff1aATM \u63d0\u4f9b\u66f4\u9ad8\u7684\u5e26\u5bbd\u548c QoS \u652f\u6301\uff0c\u800c\u5e27\u4e2d\u7ee7\u5bf9\u4e8e\u4f4e\u5e26\u5bbd\u5e94\u7528\u6765\u8bf4\u66f4\u7b80\u5355\u3001\u66f4\u5177\u6210\u672c\u6548\u76ca\u3002<\/p>\n<\/li>\n<li>\n<p><strong>ATM \u4e0e MPLS<\/strong>\uff1a\u4e24\u8005\u90fd\u652f\u6301QoS\uff0c\u4f46\u662fATM\u66f4\u9002\u5408\u9ad8\u5e26\u5bbd\u5e94\u7528\uff0c\u800cMPLS\u66f4\u5177\u53ef\u6269\u5c55\u6027\uff0c\u9002\u5408\u590d\u6742\u7684\u7f51\u7edc\u62d3\u6251\u3002<\/p>\n<\/li>\n<\/ol>\n<h2>\u672a\u6765\u7684\u89c2\u70b9\u548c\u6280\u672f<\/h2>\n<p>\u5f02\u6b65\u4f20\u8f93\u6a21\u5f0f\u56e0\u5176 QoS \u529f\u80fd\u548c\u53ef\u9760\u6027\u800c\u5728\u67d0\u4e9b\u7ec6\u5206\u5e94\u7528\u4e2d\u4ecd\u7136\u5177\u6709\u76f8\u5173\u6027\u3002\u7136\u800c\uff0c\u5b83\u9762\u4e34\u7740\u6765\u81ea IP\/MPLS \u548c\u8fd0\u8425\u5546\u4ee5\u592a\u7f51\u7b49\u65b0\u5174\u6280\u672f\u7684\u7ade\u4e89\u3002\u968f\u7740\u7f51\u7edc\u9700\u6c42\u7684\u4e0d\u65ad\u53d1\u5c55\uff0c\u8fd9\u4e9b\u66ff\u4ee3\u6280\u672f\u53ef\u80fd\u4f1a\u83b7\u5f97\u66f4\u591a\u5173\u6ce8\uff0c\u5c24\u5176\u662f\u5728\u8f6f\u4ef6\u5b9a\u4e49\u7f51\u7edc (SDN) \u548c\u7f51\u7edc\u529f\u80fd\u865a\u62df\u5316 (NFV) \u7684\u80cc\u666f\u4e0b\u3002<\/p>\n<h2>\u5f02\u6b65\u4f20\u8f93\u6a21\u5f0f\u548c\u4ee3\u7406\u670d\u52a1\u5668<\/h2>\n<p>\u4ee3\u7406\u670d\u52a1\u5668\u662f\u73b0\u4ee3\u7f51\u7edc\u7684\u91cd\u8981\u7ec4\u6210\u90e8\u5206\uff0c\u5145\u5f53\u5ba2\u6237\u7aef\u548c\u4e92\u8054\u7f51\u4e4b\u95f4\u7684\u4e2d\u4ecb\u3002\u867d\u7136 ATM \u6280\u672f\u672c\u8eab\u4e0e\u4ee3\u7406\u670d\u52a1\u5668\u6ca1\u6709\u76f4\u63a5\u5173\u7cfb\uff0c\u4f46\u5728\u7f51\u7edc\u4e2d\u90e8\u7f72 ATM \u7684\u7ec4\u7ec7\u4e5f\u53ef\u4ee5\u5229\u7528\u4ee3\u7406\u670d\u52a1\u5668\u6765\u5b9e\u73b0\u5404\u79cd\u76ee\u7684\uff0c\u4f8b\u5982\u63d0\u9ad8\u5b89\u5168\u6027\u3001\u7f13\u5b58\u5185\u5bb9\u548c\u4f18\u5316\u7f51\u7edc\u6d41\u91cf\u3002<\/p>\n<h2>\u76f8\u5173\u94fe\u63a5<\/h2>\n<p>\u6709\u5173\u5f02\u6b65\u4f20\u8f93\u6a21\u5f0f\u7684\u66f4\u591a\u4fe1\u606f\uff0c\u60a8\u53ef\u4ee5\u8bbf\u95ee\u4ee5\u4e0b\u8d44\u6e90\uff1a<\/p>\n<ol>\n<li><a href=\"https:\/\/web.archive.org\/web\/20210921012527\/https:\/\/www.atmforum.org\/\" target=\"_new\" rel=\"noopener nofollow\">ATM\u8bba\u575b<\/a><\/li>\n<li><a href=\"https:\/\/web.archive.org\/web\/20210921012540\/https:\/\/www.itu.int\/rec\/T-REC-I.150\/\" target=\"_new\" rel=\"noopener nofollow\">ITU-T ATM \u5efa\u8bae\u4e66<\/a><\/li>\n<li><a href=\"https:\/\/web.archive.org\/web\/20210921012614\/http:\/\/www.rad.com\/networks\/1995\/atm\/atm1.htm\" target=\"_new\" rel=\"noopener nofollow\">ATM\u6280\u672f\u6559\u7a0b<\/a><\/li>\n<\/ol>\n<p>ATM \u4ecd\u7136\u662f\u7f51\u7edc\u5386\u53f2\u4e0a\u4e00\u9879\u91cd\u8981\u7684\u6280\u672f\uff0c\u5c3d\u7ba1\u8fd1\u5e74\u6765\u5176\u4f7f\u7528\u7387\u6709\u6240\u4e0b\u964d\uff0c\u4f46\u5b83\u7684\u9057\u4ea7\u4ecd\u7136\u5b58\u5728\u4e8e\u73b0\u4ee3\u901a\u4fe1\u7cfb\u7edf\u7684\u57fa\u7840\u4e2d\u3002\u968f\u7740\u7f51\u7edc\u7684\u4e0d\u65ad\u53d1\u5c55\uff0c\u5728\u73b0\u6709\u6280\u672f\u7684\u57fa\u7840\u4e0a\u91c7\u7528\u65b0\u6280\u672f\u5c06\u5851\u9020\u5168\u7403\u8fde\u901a\u6027\u7684\u672a\u6765\u3002<\/p>","protected":false},"featured_media":475701,"menu_order":0,"template":"","meta":{"_acf_changed":false,"content-type":"","inline_featured_image":false,"footnotes":""},"class_list":["post-475926","wiki","type-wiki","status-publish","has-post-thumbnail","hentry"],"acf":{"faq_title":"Frequently Asked Questions about <mark>Asynchronous Transfer Mode (ATM)<\/mark>","faq_items":[{"question":"What is Asynchronous Transfer Mode (ATM)?","answer":"<p>Asynchronous Transfer Mode (ATM) is a high-speed networking technology designed for efficient data, voice, and video transmission over both local and wide area networks. It utilizes fixed-size cells to ensure uniform and predictable transmission times, making it ideal for diverse traffic types with varying quality of service requirements.<\/p>"},{"question":"How did Asynchronous Transfer Mode originate?","answer":"<p>Asynchronous Transfer Mode was first introduced by the International Telegraph and Telephone Consultative Committee (CCITT) in the late 1980s as part of their Broadband Integrated Services Digital Network (B-ISDN) recommendations. Its initial concept focused on using fixed-size cells for transmitting data, unlike traditional packet-switched networks with variable-sized packets.<\/p>"},{"question":"How does Asynchronous Transfer Mode work?","answer":"<p>ATM operates on the basis of virtual circuits, establishing logical paths between endpoints for data transmission. It comprises ATM switches responsible for routing and switching ATM cells, ATM endpoints generating and receiving ATM cells, and a physical transmission medium such as optical fibers or copper cables.<\/p>"},{"question":"What are the key features of Asynchronous Transfer Mode?","answer":"<p>ATM offers high-speed data transmission rates, supports multiple classes of service for prioritizing different traffic types, ensures scalability to accommodate a large number of devices and users, and provides efficient network utilization with its fixed cell size structure.<\/p>"},{"question":"What types of Asynchronous Transfer Mode exist?","answer":"<p>There are two main types of ATM:<\/p><ol><li>ATM over SONET\/SDH: ATM cells encapsulated within Synchronous Optical Networking (SONET) or Synchronous Digital Hierarchy (SDH) frames, allowing integration with existing SONET\/SDH networks.<\/li><li>ATM over IP\/MPLS: ATM cells encapsulated within IP or Multi-Protocol Label Switching (MPLS) packets, facilitating the convergence of ATM and IP\/MPLS networks for greater flexibility and cost-effectiveness.<\/li><\/ol>"},{"question":"How is Asynchronous Transfer Mode used, and what are the challenges?","answer":"<p>ATM is widely used in telecommunications, video streaming, and LAN\/WAN connectivity. Challenges include network complexity, higher implementation costs, and compatibility issues with legacy equipment.<\/p>"},{"question":"How does Asynchronous Transfer Mode compare with other terms?","answer":"<p>ATM offers predictable QoS and is suitable for time-sensitive applications, while Ethernet is cost-effective and commonly used for LAN connectivity. Compared to Frame Relay, ATM provides higher bandwidth and better QoS support, while Frame Relay is simpler and more cost-effective for low-bandwidth applications. ATM and MPLS both support QoS, with ATM being better for high-bandwidth applications, while MPLS is more scalable and suitable for complex network topologies.<\/p>"},{"question":"What are the future prospects of Asynchronous Transfer Mode?","answer":"<p>While ATM remains relevant in certain applications, emerging technologies like IP\/MPLS and Carrier Ethernet are gaining traction due to evolving network demands, especially in the context of Software-Defined Networking (SDN) and Network Function Virtualization (NFV).<\/p>"},{"question":"How are proxy servers related to Asynchronous Transfer Mode?","answer":"<p>While ATM itself doesn't directly relate to proxy servers, organizations deploying ATM in their networks can also use proxy servers for various purposes, such as enhancing security, content caching, and optimizing network traffic.<\/p>"},{"question":"Where can I find more information about Asynchronous Transfer Mode?","answer":"<p>For further information about Asynchronous Transfer Mode, you can visit the following resources:<\/p><ol><li>ATM Forum (<a href=\"https:\/\/web.archive.org\/web\/20210921012527\/https:\/\/www.atmforum.org\/\" target=\"_new\">https:\/\/web.archive.org\/web\/20210921012527\/https:\/\/www.atmforum.org\/<\/a>)<\/li><li>ITU-T Recommendations for ATM (<a href=\"https:\/\/web.archive.org\/web\/20210921012540\/https:\/\/www.itu.int\/rec\/T-REC-I.150\/\" target=\"_new\">https:\/\/web.archive.org\/web\/20210921012540\/https:\/\/www.itu.int\/rec\/T-REC-I.150\/<\/a>)<\/li><li>ATM Technology Tutorial (<a href=\"https:\/\/web.archive.org\/web\/20210921012614\/http:\/\/www.rad.com\/networks\/1995\/atm\/atm1.htm\" target=\"_new\">https:\/\/web.archive.org\/web\/20210921012614\/http:\/\/www.rad.com\/networks\/1995\/atm\/atm1.htm<\/a>)<\/li><\/ol>"}]},"_links":{"self":[{"href":"https:\/\/oneproxy.pro\/cn\/wp-json\/wp\/v2\/wiki\/475926","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/oneproxy.pro\/cn\/wp-json\/wp\/v2\/wiki"}],"about":[{"href":"https:\/\/oneproxy.pro\/cn\/wp-json\/wp\/v2\/types\/wiki"}],"version-history":[{"count":0,"href":"https:\/\/oneproxy.pro\/cn\/wp-json\/wp\/v2\/wiki\/475926\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/oneproxy.pro\/cn\/wp-json\/wp\/v2\/media\/475701"}],"wp:attachment":[{"href":"https:\/\/oneproxy.pro\/cn\/wp-json\/wp\/v2\/media?parent=475926"}],"curies":[{"name":"\u53ef\u6e7f\u6027\u7c89\u5242","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}