{"id":14613,"date":"2024-08-14T11:36:34","date_gmt":"2024-08-14T03:36:34","guid":{"rendered":"https:\/\/www.simcentric.com\/uncategorized-tc\/how-do-switches-power-modern-data-center-architecture\/"},"modified":"2024-08-14T11:39:51","modified_gmt":"2024-08-14T03:39:51","slug":"how-do-switches-power-modern-data-center-architecture","status":"publish","type":"post","link":"https:\/\/www.simcentric.com\/tc\/hong-kong-dedicated-server-tc\/how-do-switches-power-modern-data-center-architecture\/","title":{"rendered":"\u4ea4\u63db\u6a5f\u5982\u4f55\u9a45\u52d5\u73fe\u4ee3\u6578\u64da\u4e2d\u5fc3\u67b6\u69cb?"},"content":{"rendered":"

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\u4f60\u662f\u5426\u66fe\u60f3\u904e\u6578\u64da\u4e2d\u5fc3<\/a><\/strong>\u7db2\u8def\u7684\u6838\u5fc3\u662f\u4ec0\u9ebc?\u4ea4\u63db\u6a5f<\/a><\/strong>\u96d6\u5e38\u88ab\u5ffd\u8996\uff0c\u537b\u662f\u9a45\u52d5\u73fe\u4ee3\u6578\u64da\u4e2d\u5fc3\u67b6\u69cb\u7684\u7121\u540d\u82f1\u96c4\u3002\u7576\u6211\u5011\u6df1\u5165\u63a2\u8a0e\u5b83\u5011\u7684\u95dc\u9375\u4f5c\u7528\u6642\uff0c\u6211\u5011\u5c07\u63ed\u793a\u9019\u4e9b\u8a2d\u5099\u5982\u4f55\u5728\u7576\u4eca\u8907\u96dc\u7684\u6578\u4f4d\u57fa\u790e\u8a2d\u65bd\u4e2d\u7de8\u6392\u6578\u64da\u6d41\u3001\u589e\u5f37\u5b89\u5168\u6027\u4e26\u512a\u5316\u6548\u80fd\u3002<\/p>\n

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\u6578\u64da\u4e2d\u5fc3\u9023\u63a5\u7684\u9aa8\u5e79<\/strong><\/h2>\n

\u4ea4\u63db\u6a5f\u662f\u6578\u64da\u4e2d\u5fc3\u67b6\u69cb\u4e2d\u4e0d\u70ba\u4eba\u77e5\u7684\u82f1\u96c4\uff0c\u69cb\u6210\u4e86\u9023\u63a5\u7684\u9aa8\u5e79\u3002\u5b83\u5011\u4e3b\u8981\u5728OSI\u6a21\u578b\u7684\u6578\u64da\u93c8\u8def\u5c64\uff08\u7b2c2\u5c64\uff09\u904b\u4f5c\uff0c\u57fa\u65bcMAC\u4f4d\u5740\u4fc3\u9032\u8a2d\u5099\u9593\u7684\u901a\u8a0a\u3002\u4f46\u5b83\u5011\u7684\u4f5c\u7528\u9060\u4e0d\u6b62\u65bc\u7c21\u55ae\u7684\u6578\u64da\u5305\u8f49\u767c\u3002<\/p>\n

\u7db2\u8def\u5206\u6bb5\u548cVLAN<\/strong><\/h2>\n

\u4ea4\u63db\u6a5f\u5728\u6578\u64da\u4e2d\u5fc3\u4e2d\u6700\u95dc\u9375\u7684\u529f\u80fd\u4e4b\u4e00\u662f\u7db2\u8def\u5206\u6bb5\u3002\u900f\u904e\u5be6\u65bd\u865b\u64ec\u5340\u57df\u7db2\u8def\uff08VLAN\uff09\uff0c\u4ea4\u63db\u6a5f\u5141\u8a31\u7ba1\u7406\u54e1\u5275\u5efa\u908f\u8f2f\u7db2\u8def\u6bb5\uff0c\u63d0\u9ad8\u5b89\u5168\u6027\u548c\u6548\u80fd\u3002\u4ee5\u4e0b\u662f\u5728Cisco\u4ea4\u63db\u6a5f\u4e0a\u914d\u7f6eVLAN\u7684\u5feb\u901f\u793a\u4f8b\uff1a<\/p>\n

\r\nSwitch# configure terminal\r\nSwitch(config)# vlan 10\r\nSwitch(config-vlan)# name Engineering\r\nSwitch(config-vlan)# exit\r\nSwitch(config)# interface fastethernet 0\/1\r\nSwitch(config-if)# switchport mode access\r\nSwitch(config-if)# switchport access vlan 10\r\nSwitch(config-if)# end\r\n    <\/code><\/pre>\n
\u6b64\u914d\u7f6e\u5275\u5efa\u4e86VLAN 10\uff0c\u547d\u540d\u70ba\u300cEngineering\u300d\uff0c\u4e26\u5c07\u5176\u5206\u914d\u7d66\u7279\u5b9a\u57e0\u53e3\u3002\u9019\u7a2e\u5206\u6bb5\u5c0d\u65bc\u9694\u96e2\u6d41\u91cf\u548c\u589e\u5f37\u6578\u64da\u4e2d\u5fc3\u7684\u7db2\u8def\u5b89\u5168\u81f3\u95dc\u91cd\u8981\u3002<\/p>\n
[\/vc_column_text][\/vc_column][\/vc_row][vc_row el_class=”blog-detail-section”][vc_column][vc_column_text]<\/p>\n
\u6d41\u91cf\u7ba1\u7406\u548cQoS<\/strong><\/h2>\n
\u4ea4\u63db\u6a5f\u5728\u6578\u64da\u4e2d\u5fc3\u5167\u7684\u6d41\u91cf\u7ba1\u7406<\/a><\/strong>\u4e2d\u626e\u6f14\u8457\u81f3\u95dc\u91cd\u8981\u7684\u89d2\u8272\u3002\u900f\u904e\u670d\u52d9\u54c1\u8cea\uff08QoS\uff09\u914d\u7f6e\uff0c\u5b83\u5011\u53ef\u4ee5\u512a\u5148\u8655\u7406\u67d0\u4e9b\u985e\u578b\u7684\u6d41\u91cf\uff0c\u78ba\u4fdd\u95dc\u9375\u61c9\u7528\u7a0b\u5f0f\u7372\u5f97\u5fc5\u8981\u7684\u983b\u5bec\u3002\u8b93\u6211\u5011\u770b\u770b\u4e00\u500b\u57fa\u672c\u7684QoS\u914d\u7f6e\uff1a<\/p>\n
\r\nSwitch(config)# mls qos\r\nSwitch(config)# class-map match-all VOICE\r\nSwitch(config-cmap)# match ip dscp ef\r\nSwitch(config-cmap)# exit\r\nSwitch(config)# policy-map PRIORITY-QUEUE\r\nSwitch(config-pmap)# class VOICE\r\nSwitch(config-pmap-c)# priority percent 10\r\nSwitch(config-pmap-c)# exit\r\nSwitch(config-pmap)# exit\r\nSwitch(config)# interface gigabitethernet 0\/1\r\nSwitch(config-if)# service-policy output PRIORITY-QUEUE\r\n    <\/code><\/pre>\n
\u6b64\u914d\u7f6e\u512a\u5148\u8655\u7406\u8a9e\u97f3\u6d41\u91cf\uff0c\u5206\u914d10%\u7684\u983b\u5bec\uff0c\u4ee5\u78ba\u4fdd\u5373\u4f7f\u5728\u7db2\u8def\u9ad8\u5ea6\u4f7f\u7528\u671f\u9593\u4e5f\u80fd\u4fdd\u6301\u6e05\u6670\u7684\u901a\u8a0a\u3002<\/p>\n
[\/vc_column_text][\/vc_column][\/vc_row][vc_row el_class=”blog-detail-section”][vc_column][vc_column_text]<\/p>\n
\u8ca0\u8f09\u5e73\u8861\u548c\u5197\u9918<\/strong><\/h2>\n
\u5728\u6578\u64da\u4e2d\u5fc3\u74b0\u5883\u4e2d\uff0c\u4ea4\u63db\u6a5f\u5728\u5be6\u73fe\u8ca0\u8f09\u5e73\u8861\u548c\u5197\u9918\u65b9\u9762\u767c\u63ee\u8457\u91cd\u8981\u4f5c\u7528\u3002\u50cf\u93c8\u8def\u805a\u5408\u63a7\u5236\u5354\u5b9a\uff08LACP\uff09\u9019\u6a23\u7684\u6280\u8853\u5141\u8a31\u5c07\u591a\u500b\u5be6\u9ad4\u93c8\u8def\u7d44\u5408\u6210\u4e00\u500b\u908f\u8f2f\u93c8\u8def\uff0c\u589e\u52a0\u983b\u5bec\u4e26\u63d0\u4f9b\u6545\u969c\u8f49\u79fb\u529f\u80fd\u3002<\/p>\n
\u4ee5\u4e0b\u662f\u5982\u4f55\u5728\u4ea4\u63db\u6a5f\u4e0a\u914d\u7f6eLACP\uff1a<\/p>\n
\r\nSwitch(config)# interface range gigabitethernet 0\/1 - 2\r\nSwitch(config-if-range)# channel-group 1 mode active\r\nSwitch(config-if-range)# exit\r\nSwitch(config)# interface port-channel 1\r\nSwitch(config-if)# switchport mode trunk\r\n    <\/code><\/pre>\n
\u6b64\u914d\u7f6e\u5275\u5efa\u4e86\u4e00\u500b\u5305\u542b\u5169\u500b\u4ecb\u9762\u7684\u57e0\u9053\uff08\u93c8\u8def\u805a\u5408\u7d44\uff09\uff0c\u540c\u6642\u63d0\u9ad8\u4e86\u6548\u80fd\u548c\u53ef\u9760\u6027\u3002<\/p>\n
[\/vc_column_text][\/vc_column][\/vc_row][vc_row el_class=”blog-detail-section”][vc_column][vc_column_text]<\/p>\n
SDN\u548c\u53ef\u7a0b\u5f0f\u5316\u7db2\u8def<\/strong><\/h2>\n
\u96a8\u8457\u8edf\u9ad4\u5b9a\u7fa9\u7db2\u8def\uff08SDN\uff09\u7684\u51fa\u73fe\uff0c\u4ea4\u63db\u6a5f\u5728\u6578\u64da\u4e2d\u5fc3\u4e2d\u7684\u89d2\u8272\u6b63\u5728\u4e0d\u65b7\u767c\u5c55\u3002\u73fe\u4ee3\u4ea4\u63db\u6a5f\u652f\u63f4\u53ef\u7a0b\u5f0f\u5316\u4ecb\u9762\uff0c\u5141\u8a31\u52d5\u614b\u7db2\u8def\u914d\u7f6e\u3002\u4ee5\u4e0b\u662f\u4f7f\u7528Netmiko\u51fd\u5f0f\u5eab\u914d\u7f6e\u4ea4\u63db\u6a5f\u7684\u7c21\u55aePython\u8173\u672c\uff1a<\/p>\n
\r\nfrom netmiko import ConnectHandler\r\n\r\nswitch = {\r\n    'device_type': 'cisco_ios',\r\n    'ip': '192.168.1.1',\r\n    'username': 'admin',\r\n    'password': 'password'\r\n}\r\n\r\ncommands = [\r\n    'vlan 20',\r\n    'name Marketing',\r\n    'interface gigabitethernet 0\/2',\r\n    'switchport mode access',\r\n    'switchport access vlan 20'\r\n]\r\n\r\nwith ConnectHandler(**switch) as net_connect:\r\n    output = net_connect.send_config_set(commands)\r\n    print(output)\r\n    <\/code><\/pre>\n
\u6b64\u8173\u672c\u81ea\u52d5\u5316\u4e86\u5275\u5efaVLAN\u4e26\u5c07\u5176\u5206\u914d\u7d66\u4ecb\u9762\u7684\u904e\u7a0b\uff0c\u5c55\u793a\u4e86\u73fe\u4ee3\u6578\u64da\u4e2d\u5fc3\u4e2d\u53ef\u7a0b\u5f0f\u5316\u7db2\u8def\u7684\u5f37\u5927\u529f\u80fd\u3002<\/p>\n
[\/vc_column_text][\/vc_column][\/vc_row][vc_row el_class=”blog-detail-section”][vc_column][vc_column_text]<\/p>\n
\u76e3\u63a7\u548c\u5206\u6790<\/strong><\/h2>\n
\u6578\u64da\u4e2d\u5fc3\u4e2d\u7684\u4ea4\u63db\u6a5f\u4e0d\u50c5\u50c5\u662f\u50b3\u8f38\u6578\u64da\u5305\uff1b\u5b83\u5011\u5c0d\u7db2\u8def\u76e3\u63a7\u548c\u5206\u6790\u4e5f\u81f3\u95dc\u91cd\u8981\u3002\u8a31\u591a\u73fe\u4ee3\u4ea4\u63db\u6a5f\u652f\u63f4sFlow\u6216NetFlow\u7b49\u5354\u5b9a\uff0c\u9019\u4e9b\u5354\u5b9a\u63d0\u4f9b\u4e86\u5c0d\u7db2\u8def\u6d41\u91cf\u6a21\u5f0f\u7684\u5bf6\u8cb4\u6d1e\u5bdf\u3002\u4ee5\u4e0b\u662f\u5982\u4f55\u5728\u4ea4\u63db\u6a5f\u4e0a\u555f\u7528sFlow\uff1a<\/p>\n
\r\nSwitch(config)# ip sflow destination 10.1.1.1 6343\r\nSwitch(config)# ip sflow source-interface vlan 1\r\nSwitch(config)# ip sflow sampling-rate 2048\r\nSwitch(config)# ip sflow max-header-size 128\r\nSwitch(config)# ip sflow receiver 1 10.1.1.1\r\n    <\/code><\/pre>\n
\u6b64\u914d\u7f6e\u8a2d\u7f6esFlow\u5c07\u6d41\u91cf\u6a23\u672c\u767c\u9001\u5230\u6536\u96c6\u5668\uff0c\u5f9e\u800c\u80fd\u5920\u8a73\u7d30\u5206\u6790\u7db2\u8def\u4f7f\u7528\u60c5\u6cc1\u548c\u6548\u80fd\u3002<\/p>\n
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\u6578\u64da\u4e2d\u5fc3\u4ea4\u63db\u6a5f\u7684\u672a\u4f86<\/strong><\/h2>\n
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