{"id":67431,"date":"2026-02-28T09:09:31","date_gmt":"2026-02-28T00:09:31","guid":{"rendered":"https:\/\/wordpress.realcollector.jp\/blog\/?p=67431"},"modified":"2026-02-28T09:09:31","modified_gmt":"2026-02-28T00:09:31","slug":"switch","status":"publish","type":"post","link":"https:\/\/wordpress.realcollector.jp\/blog\/?p=67431","title":{"rendered":"switch"},"content":{"rendered":"<p>\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30b9\u30a4\u30c3\u30c1\uff08\u4ee5\u4e0b\u300c\u30b9\u30a4\u30c3\u30c1\u300d\u3068\u547c\u3076\uff09\u306f\u3001\u8907\u6570\u306e\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf\u3084\u30b5\u30fc\u30d0\u3001\u30d7\u30ea\u30f3\u30bf\u306a\u3069\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u6a5f\u5668\u3092\u76f8\u4e92\u63a5\u7d9a\u3057\u3001\u30c7\u30fc\u30bf\u30fb\u30d1\u30b1\u30c3\u30c8\u3092\u6700\u9069\u306a\u7d4c\u8def\u3067\u8ee2\u9001\u3059\u308b\u901a\u4fe1\u6a5f\u5668\u3067\u3059\u3002OSI\u53c2\u7167\u30e2\u30c7\u30eb\u306e\u7b2c2\u5c64\uff08\u30c7\u30fc\u30bf\u30ea\u30f3\u30af\u5c64\uff09\u3067\u52d5\u4f5c\u3059\u308b\u300c\u30ec\u30a4\u30e4\u30fc2\u30b9\u30a4\u30c3\u30c1\u300d\u3092\u57fa\u672c\u3068\u3057\u3001\u3055\u3089\u306b\u306fIP\u30a2\u30c9\u30ec\u30b9\u306a\u3069\u306e\u7b2c3\u5c64\uff08\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5c64\uff09\u60c5\u5831\u3092\u6271\u3048\u308b\u300c\u30ec\u30a4\u30e4\u30fc3\u30b9\u30a4\u30c3\u30c1\u300d\u3082\u5e83\u304f\u5229\u7528\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u30b9\u30a4\u30c3\u30c1\u306f\u5f93\u6765\u306e\u30ea\u30d4\u30fc\u30bf\u3084\u30cf\u30d6\u3068\u7570\u306a\u308a\u3001MAC\u30a2\u30c9\u30ec\u30b9\u3092\u5b66\u7fd2\u3057\u3066\u30d5\u30ec\u30fc\u30e0\u3092\u9069\u5207\u306a\u5b9b\u5148\u30dd\u30fc\u30c8\u3078\u3060\u3051\u8ee2\u9001\u3067\u304d\u308b\u305f\u3081\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u5e2f\u57df\u52b9\u7387\u3092\u5927\u5e45\u306b\u5411\u4e0a\u3055\u305b\u3001\u885d\u7a81\uff08\u30b3\u30ea\u30b8\u30e7\u30f3\uff09\u306e\u767a\u751f\u3092\u6291\u5236\u3057\u307e\u3059\u3002<\/p>\n<p>\u30b9\u30a4\u30c3\u30c1\u306f\u4f01\u696d\u3084\u30c7\u30fc\u30bf\u30bb\u30f3\u30bf\u30fc\u3001\u3055\u3089\u306b\u306f\u4e00\u822c\u5bb6\u5ead\u306e\u30db\u30fc\u30e0\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306b\u81f3\u308b\u307e\u3067\u5e45\u5e83\u3044\u9818\u57df\u3067\u63a1\u7528\u3055\u308c\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u4fe1\u983c\u6027\u3068\u62e1\u5f35\u6027\u3092\u78ba\u4fdd\u3059\u308b\u4e0a\u3067\u4e0d\u53ef\u6b20\u306a\u5f79\u5272\u3092\u679c\u305f\u3057\u3066\u3044\u307e\u3059\u3002\u7ba1\u7406\u6a5f\u80fd\u3092\u6301\u305f\u306a\u3044\u300c\u30a2\u30f3\u30de\u30cd\u30fc\u30b8\u30c9\u30b9\u30a4\u30c3\u30c1\u300d\u306f\u30d7\u30e9\u30b0\uff06\u30d7\u30ec\u30a4\u3067\u5229\u7528\u53ef\u80fd\u306a\u4e00\u65b9\u3001VLAN\uff08\u4eee\u60f3LAN\uff09\u8a2d\u5b9a\u3084QoS\uff08Quality of Service\uff09\u5236\u5fa1\u3001SNMP\u76e3\u8996\u306a\u3069\u3092\u30b5\u30dd\u30fc\u30c8\u3059\u308b\u300c\u30de\u30cd\u30fc\u30b8\u30c9\u30b9\u30a4\u30c3\u30c1\u300d\u306f\u5927\u898f\u6a21\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306b\u304a\u3044\u3066\u7d30\u304b\u306a\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u5236\u5fa1\u3084\u969c\u5bb3\u691c\u77e5\u3092\u53ef\u80fd\u306b\u3057\u307e\u3059\u3002<\/p>\n<p>\u307e\u305f\u3001PoE\uff08Power over Ethernet\uff09\u5bfe\u5fdc\u30b9\u30a4\u30c3\u30c1\u306f\u3001LAN\u30b1\u30fc\u30d6\u30eb\u3092\u901a\u3058\u3066IP\u96fb\u8a71\u3084\u7121\u7ddaLAN\u30a2\u30af\u30bb\u30b9\u30dd\u30a4\u30f3\u30c8\u3001\u76e3\u8996\u30ab\u30e1\u30e9\u306a\u3069\u306b\u96fb\u529b\u3092\u4f9b\u7d66\u3067\u304d\u308b\u305f\u3081\u3001\u5225\u9014\u96fb\u6e90\u914d\u7dda\u306e\u624b\u914d\u304c\u4e0d\u8981\u3068\u306a\u308a\u3001\u8a2d\u7f6e\u5de5\u6570\u3068\u30b3\u30b9\u30c8\u3092\u524a\u6e1b\u3057\u307e\u3059\u3002\u3055\u3089\u306b\u3001\u8907\u6570\u53f0\u306e\u30b9\u30a4\u30c3\u30c1\u3092\u4eee\u60f3\u7684\u306b\u675f\u306d\u308b\u300c\u30b9\u30bf\u30c3\u30ad\u30f3\u30b0\u300d\u6a5f\u80fd\u3092\u4f7f\u3048\u3070\u3001\u4e00\u5143\u7ba1\u7406\u3084\u5197\u9577\u69cb\u6210\u306e\u69cb\u7bc9\u304c\u5bb9\u6613\u306b\u306a\u308b\u305f\u3081\u3001\u5927\u898f\u6a21\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u53ef\u7528\u6027\u5411\u4e0a\u306b\u5bc4\u4e0e\u3057\u307e\u3059\u3002<\/p>\n<p>\u8fd1\u5e74\u306f\u7701\u96fb\u529b\u6280\u8853\u3084\u30d5\u30a1\u30f3\u30ec\u30b9\u8a2d\u8a08\u3092\u5099\u3048\u305f\u30e2\u30c7\u30eb\u3082\u5897\u6b96\u3057\u3001\u56f3\u66f8\u9928\u3084\u5c0f\u898f\u6a21\u30aa\u30d5\u30a3\u30b9\u3001\u5bb6\u5ead\u7528\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3068\u3044\u3063\u305f\u9759\u97f3\u6027\u3092\u91cd\u8996\u3059\u308b\u74b0\u5883\u306b\u3082\u9069\u3057\u305f\u88fd\u54c1\u304c\u767b\u5834\u3057\u3066\u3044\u307e\u3059\u3002\u3055\u3089\u306b\u3001\u30af\u30e9\u30a6\u30c9\u30d9\u30fc\u30b9\u306e\u7ba1\u7406\u30d7\u30e9\u30c3\u30c8\u30d5\u30a9\u30fc\u30e0\u3068\u9023\u643a\u3057\u3001\u9060\u9694\u5730\u306b\u3042\u308b\u30b9\u30a4\u30c3\u30c1\u7fa4\u3092\u5358\u4e00\u306e\u30c0\u30c3\u30b7\u30e5\u30dc\u30fc\u30c9\u3067\u76e3\u8996\u30fb\u8a2d\u5b9a\u3067\u304d\u308b\u30af\u30e9\u30a6\u30c9\u30de\u30cd\u30fc\u30b8\u30c9\u30b9\u30a4\u30c3\u30c1\u3082\u666e\u53ca\u304c\u9032\u3093\u3067\u3044\u307e\u3059\u3002\u3053\u308c\u3089\u306b\u3088\u308a\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u7ba1\u7406\u8005\u306e\u904b\u7528\u8ca0\u8377\u8efd\u6e1b\u3068\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u5f37\u5316\u306e\u4e21\u7acb\u304c\u56f3\u3089\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u30b9\u30a4\u30c3\u30c1\u306f\u73fe\u4ee3\u306e\u60c5\u5831\u5316\u793e\u4f1a\u306b\u304a\u3044\u3066\u3001\u793e\u5185LAN\u306e\u57fa\u76e4\u306e\u307f\u306a\u3089\u305a\u3001\u30c7\u30fc\u30bf\u30bb\u30f3\u30bf\u30fc\u5185\u306e\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u96c6\u7d04\u88c5\u7f6e\u3001\u30a8\u30c3\u30b8\u30b3\u30f3\u30d4\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0\u74b0\u5883\u306e\u30c7\u30d0\u30a4\u30b9\u63a5\u7d9a\u57fa\u76e4\u306a\u3069\u3001\u305d\u306e\u6d3b\u8e8d\u306e\u5834\u304c\u591a\u5c90\u306b\u308f\u305f\u308a\u307e\u3059\u3002\u5c06\u6765\u7684\u306b\u306f\u3001AI\u3092\u6d3b\u7528\u3057\u305f\u81ea\u52d5\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u6700\u9069\u5316\u3084\u30bc\u30ed\u30c8\u30e9\u30b9\u30c8\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u6a5f\u80fd\u306e\u7d44\u307f\u8fbc\u307f\u304c\u9032\u3080\u3053\u3068\u304c\u671f\u5f85\u3055\u308c\u3001\u307e\u3059\u307e\u3059\u9ad8\u5ea6\u306a\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30a4\u30f3\u30d5\u30e9\u3092\u652f\u3048\u308b\u8981\u7d20\u3068\u3057\u3066\u6ce8\u76ee\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u4e3b\u306a\u7279\u5fb4\uff08\u6a5f\u80fd\uff09\u4e00\u89a7 1. \u30dd\u30fc\u30c8\u6570\u3068\u8ee2\u9001\u901f\u5ea6\uff1a\u4e00\u822c\u7684\u306b8\u30dd\u30fc\u30c8\uff5e48\u30dd\u30fc\u30c8\u4ee5\u4e0a\u300110\/100\/1000Mbps\u308410Gbps\u4ee5\u4e0a\u306e\u30a4\u30fc\u30b5\u30cd\u30c3\u30c8\u30dd\u30fc\u30c8\u3092\u642d\u8f09 2. VLAN\u5bfe\u5fdc\uff1a\u8907\u6570\u306e\u4eee\u60f3\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3092\u5206\u96e2\u30fb\u69cb\u7bc9\u3057\u3001\u30bb\u30b0\u30e1\u30f3\u30c8\u3054\u3068\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u3084\u5e2f\u57df\u7ba1\u7406\u3092\u5b9f\u73fe 3. QoS\uff08Quality of Service\uff09\uff1a\u97f3\u58f0\u30fb\u6620\u50cf\u30fb\u30c7\u30fc\u30bf\u306a\u3069\u512a\u5148\u5ea6\u306e\u9ad8\u3044\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u3092\u9069\u5207\u306b\u5236\u5fa1 4. PoE\uff0fPoE+\u5bfe\u5fdc\uff1aLAN\u30b1\u30fc\u30d6\u30eb\u7d4c\u7531\u3067\u6a5f\u5668\u3078\u6700\u592730W\u7a0b\u5ea6\u306e\u96fb\u529b\u4f9b\u7d66\u3092\u884c\u3044\u3001\u5225\u9014\u96fb\u6e90\u914d\u7dda\u3092\u4e0d\u8981\u5316 5. \u30b9\u30bf\u30c3\u30ad\u30f3\u30b0\u6a5f\u80fd\uff1a\u8907\u6570\u53f0\u306e\u30b9\u30a4\u30c3\u30c1\u3092\u4eee\u60f3\u7684\u306b\u4e00\u53f0\u5316\u3057\u3001\u4e00\u62ec\u7ba1\u7406\u3084\u5197\u9577\u5316\u3092\u5bb9\u6613\u306b\u69cb\u7bc9 6. \u7ba1\u7406\u65b9\u5f0f\uff1aCLI\uff08\u30b3\u30de\u30f3\u30c9\u30e9\u30a4\u30f3\uff09\uff0fGUI\uff08Web\uff09\uff0fSNMP\uff0f\u30af\u30e9\u30a6\u30c9\u30d9\u30fc\u30b9\u306e\u96c6\u4e2d\u7ba1\u7406\u306a\u3069\u591a\u5f69 7. \u5197\u9577\u96fb\u6e90\u30fb\u30d5\u30a1\u30f3\u30ec\u30b9\u8a2d\u8a08\uff1a\u53ef\u7528\u6027\u91cd\u8996\u30e2\u30c7\u30eb\u3084\u9759\u7a4f\u6027\u91cd\u8996\u30e2\u30c7\u30eb\u3067\u904b\u7528\u74b0\u5883\u306b\u9069\u5408 8. \u30ec\u30a4\u30e4\u30fc3\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\uff1aVLAN\u9593\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u3084\u52d5\u7684\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u30d7\u30ed\u30c8\u30b3\u30eb\uff08OSPF\u3001BGP\u306a\u3069\uff09\u3092\u30b5\u30dd\u30fc\u30c8<\/p>\n<p>\u53c2\u8003\u6587\u732e\u30fbURL\uff08\u65e5\u672c\u8a9e\uff09 1. Wikipedia\u300c\u30b9\u30a4\u30c3\u30c1 (\u30cd\u30c3\u30c8\u30ef\u30fc\u30af)\u300d <a href=\"https:\/\/ja.wikipedia.org\/wiki\/%E3%82%B9%E3%82%A4%E3%83%83%E3%83%81_(%E3%83%8D%E3%83%83%E3%83%88%E3%83%AF%E3%83%BC%E3%82%AF)\">https:\/\/ja.wikipedia.org\/wiki\/\u30b9\u30a4\u30c3\u30c1_(\u30cd\u30c3\u30c8\u30ef\u30fc\u30af)<\/a> 2. Cisco Systems \u88fd\u54c1\u60c5\u5831\uff08\u30b9\u30a4\u30c3\u30c1\uff09 <a href=\"https:\/\/www.cisco.com\/c\/ja_jp\/products\/switches\/index.html\">https:\/\/www.cisco.com\/c\/ja_jp\/products\/switches\/index.html<\/a> 3. NEC\u300cEthernet\u30b9\u30a4\u30c3\u30c1\u88fd\u54c1\u300d <a href=\"https:\/\/jpn.nec.com\/ethernet-switch\/\">https:\/\/jpn.nec.com\/ethernet-switch\/<\/a> 4. \u65e5\u7d4c xTECH \u7528\u8a9e\u4e8b\u5178\u300c\u30b9\u30a4\u30c3\u30c1\u300d <a href=\"https:\/\/tech.nikkeibp.co.jp\/it\/word\/ATG2005999\/\">https:\/\/tech.nikkeibp.co.jp\/it\/word\/ATG2005999\/<\/a> 5. ITmedia \u30a8\u30f3\u30bf\u30fc\u30d7\u30e9\u30a4\u30ba\u300c\u57fa\u790e\u304b\u3089\u308f\u304b\u308b\u30b9\u30a4\u30c3\u30c1\u300d <a href=\"https:\/\/www.itmedia.co.jp\/enterprise\/articles\/1604\/19\/news022.html\">https:\/\/www.itmedia.co.jp\/enterprise\/articles\/1604\/19\/news022.html<\/a> 6. ASCII.jp\u300c\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30b9\u30a4\u30c3\u30c1\u3068\u306f\u4f55\u304b\uff1f\u300d <a href=\"https:\/\/ascii.jp\/elem\/000\/001\/334\/1334642\/\">https:\/\/ascii.jp\/elem\/000\/001\/334\/1334642\/<\/a><\/p>\n<p><a href=\"https:\/\/wordpress.realcollector.jp\/blog\/wp-content\/uploads\/2026\/02\/current_stablediffusion_api_response-67.png\" rel=\"attachment wp-att-67432\"><img loading=\"lazy\" decoding=\"async\" data-attachment-id=\"67432\" data-permalink=\"https:\/\/wordpress.realcollector.jp\/blog\/?attachment_id=67432\" data-orig-file=\"https:\/\/wordpress.realcollector.jp\/blog\/wp-content\/uploads\/2026\/02\/current_stablediffusion_api_response-67.png\" data-orig-size=\"512,512\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"current_stablediffusion_api_response\" data-image-description=\"\" data-image-caption=\"\" data-medium-file=\"https:\/\/wordpress.realcollector.jp\/blog\/wp-content\/uploads\/2026\/02\/current_stablediffusion_api_response-67-300x300.png\" data-large-file=\"https:\/\/wordpress.realcollector.jp\/blog\/wp-content\/uploads\/2026\/02\/current_stablediffusion_api_response-67.png\" src=\"https:\/\/wordpress.realcollector.jp\/blog\/wp-content\/uploads\/2026\/02\/current_stablediffusion_api_response-67.png\" alt=\"\" title=\"current_stablediffusion_api_response-67-png\" width=\"1024\" height=\"1024\" class=\"alignnone size-full wp-image-67432\" srcset=\"https:\/\/wordpress.realcollector.jp\/blog\/wp-content\/uploads\/2026\/02\/current_stablediffusion_api_response-67.png 512w, https:\/\/wordpress.realcollector.jp\/blog\/wp-content\/uploads\/2026\/02\/current_stablediffusion_api_response-67-300x300.png 300w, https:\/\/wordpress.realcollector.jp\/blog\/wp-content\/uploads\/2026\/02\/current_stablediffusion_api_response-67-150x150.png 150w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30b9\u30a4\u30c3\u30c1\uff08\u4ee5\u4e0b\u300c\u30b9\u30a4\u30c3\u30c1\u300d\u3068\u547c\u3076\uff09\u306f\u3001\u8907\u6570\u306e\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf\u3084\u30b5\u30fc\u30d0\u3001\u30d7\u30ea\u30f3\u30bf\u306a\u3069\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u6a5f\u5668\u3092\u76f8\u4e92\u63a5\u7d9a\u3057\u3001\u30c7\u30fc\u30bf\u30fb\u30d1\u30b1\u30c3\u30c8\u3092\u6700\u9069\u306a\u7d4c\u8def\u3067\u8ee2\u9001\u3059\u308b\u901a\u4fe1\u6a5f\u5668\u3067\u3059\u3002OSI\u53c2\u7167\u30e2\u30c7\u30eb\u306e\u7b2c2\u5c64\uff08\u30c7\u30fc\u30bf\u30ea\u30f3\u30af\u5c64\uff09\u3067\u52d5 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[10942],"tags":[3695,7695,3025,1181,10838],"class_list":["post-67431","post","type-post","status-publish","format-standard","hentry","category-o4-mini","tag-3695","tag-7695","tag-3025","tag-1181","tag-10838"],"jetpack_featured_media_url":"","jetpack-related-posts":[],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/wordpress.realcollector.jp\/blog\/index.php?rest_route=\/wp\/v2\/posts\/67431","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/wordpress.realcollector.jp\/blog\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/wordpress.realcollector.jp\/blog\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/wordpress.realcollector.jp\/blog\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/wordpress.realcollector.jp\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=67431"}],"version-history":[{"count":1,"href":"https:\/\/wordpress.realcollector.jp\/blog\/index.php?rest_route=\/wp\/v2\/posts\/67431\/revisions"}],"predecessor-version":[{"id":67433,"href":"https:\/\/wordpress.realcollector.jp\/blog\/index.php?rest_route=\/wp\/v2\/posts\/67431\/revisions\/67433"}],"wp:attachment":[{"href":"https:\/\/wordpress.realcollector.jp\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=67431"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/wordpress.realcollector.jp\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=67431"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/wordpress.realcollector.jp\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=67431"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}