{"id":478,"date":"2024-06-07T02:15:17","date_gmt":"2024-06-07T02:15:17","guid":{"rendered":"https:\/\/blog.devops955.com\/swain\/?p=478"},"modified":"2024-06-07T02:15:17","modified_gmt":"2024-06-07T02:15:17","slug":"ccnp-encor-part-3","status":"publish","type":"post","link":"https:\/\/blog.devops955.com\/swain\/zh\/2024\/06\/07\/ccnp-encor-part-3\/","title":{"rendered":"CCNP ENCOR 350-401 &#8211; Part 3"},"content":{"rendered":"<blockquote>\n<p>\u9884\u8ba1\u9605\u8bfb\u65f6\u95f4\uff1a15\u5206\u949f<br \/>\n\u672c\u6587\u5305\u542bAI\u8f85\u52a9\u521b\u4f5c\u5185\u5bb9\uff0c\u5982\u6709\u4e0d\u51c6\u786e\u4e4b\u5904\u6b22\u8fce\u968f\u65f6\u6307\u6b63\u3002<\/p>\n<\/blockquote>\n<h1><strong>Infrastructure\uff0830%\uff09<\/strong><\/h1>\n<p>\u5728 CCNP ENCOR 350-401 \u8003\u8bd5\u4e2d\uff0cInfrastructure \u7ae0\u8282\u5360\u4e8630%\u7684\u6bd4\u91cd\uff0c\u5176\u4e2d\u5305\u62ec <strong>Layer 2<\/strong>\u3001 <strong>Layer 3<\/strong>\u3001 <strong>Wireless<\/strong>\u548c<strong>IP Services<\/strong> \u56db\u4e2a\u90e8\u5206\u3002<\/p>\n<h2>Layer 2<\/h2>\n<h3>Troubleshoot static and dynamic 802.1q trunking protocols<\/h3>\n<ol>\n<li>\n<p><strong>802.1Q Trunking \u57fa\u7840\u77e5\u8bc6<\/strong><\/p>\n<ul>\n<li>\u7406\u89e3 VLAN \u6807\u8bb0\uff08tagging\uff09\u548c\u53bb\u6807\u8bb0\uff08untagging\uff09\u7684\u6982\u5ff5\u3002<\/li>\n<li>\u4e86\u89e3 802.1Q trunk \u7684\u4f5c\u7528\u4ee5\u53ca\u5728\u4e0d\u540c VLAN \u4e4b\u95f4\u4f20\u8f93\u6d41\u91cf\u7684\u65b9\u6cd5\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\n<p><strong>\u914d\u7f6e\u548c\u9a8c\u8bc1 Trunk<\/strong><\/p>\n<ul>\n<li>\u5982\u4f55\u5728\u4ea4\u6362\u673a\u4e0a\u914d\u7f6e\u9759\u6001\u548c\u52a8\u6001\u7684 802.1Q trunk\uff08\u5305\u62ec\u4f7f\u7528\u547d\u4ee4 <code>switchport mode trunk<\/code> \u548c <code>switchport mode dynamic<\/code>\uff09\u3002<\/li>\n<li>\u786e\u8ba4 trunk \u7aef\u53e3\u7684\u72b6\u6001\u548c\u8fd0\u884c\u60c5\u51b5\uff08\u4f7f\u7528 <code>show interfaces trunk<\/code> \u548c <code>show running-config<\/code>\uff09\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\n<p><strong>\u6545\u969c\u6392\u9664<\/strong><\/p>\n<ul>\n<li>\u5e38\u89c1\u95ee\u9898\u53ca\u5176\u89e3\u51b3\u65b9\u6cd5\uff0c\u5982 Native VLAN \u4e0d\u5339\u914d\u3001Trunk \u534f\u5546\u5931\u8d25\u7b49\u3002<\/li>\n<li>\u4f7f\u7528\u8c03\u8bd5\u548c\u663e\u793a\u547d\u4ee4\u6765\u6392\u67e5 trunking \u95ee\u9898\uff08\u5982 <code>debug sw-vlan trunk<\/code> \u548c <code>show interfaces switchport<\/code>\uff09\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<h3>Troubleshoot static and dynamic EtherChannels<\/h3>\n<ol>\n<li>\n<p><strong>EtherChannel \u57fa\u7840\u77e5\u8bc6<\/strong><\/p>\n<ul>\n<li>\u7406\u89e3 EtherChannel \u7684\u76ee\u7684\u53ca\u5176\u5982\u4f55\u589e\u52a0\u5e26\u5bbd\u548c\u63d0\u4f9b\u5197\u4f59\u3002<\/li>\n<li>\u719f\u6089 LACP\uff08Link Aggregation Control Protocol\uff09\u548c PAgP\uff08Port Aggregation Protocol\uff09\u7684\u5de5\u4f5c\u673a\u5236\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\n<p><strong>\u914d\u7f6e\u548c\u9a8c\u8bc1 EtherChannel<\/strong><\/p>\n<ul>\n<li>\u5982\u4f55\u914d\u7f6e\u9759\u6001\u548c\u52a8\u6001 EtherChannel\uff08\u4f7f\u7528\u547d\u4ee4 <code>channel-group<\/code> \u548c\u76f8\u5e94\u7684 mode \u9009\u9879\uff09\u3002<\/li>\n<li>\u786e\u8ba4 EtherChannel \u7684\u8fd0\u884c\u72b6\u6001\u548c\u914d\u7f6e\uff08\u4f7f\u7528 <code>show etherchannel summary<\/code> \u548c <code>show etherchannel port-channel<\/code>\uff09\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\n<p><strong>\u6545\u969c\u6392\u9664<\/strong><\/p>\n<ul>\n<li>\u5e38\u89c1\u95ee\u9898\u5982\u914d\u7f6e\u4e0d\u5339\u914d\u3001\u534f\u8bae\u4e0d\u4e00\u81f4\u7b49\u3002<\/li>\n<li>\u4f7f\u7528\u8c03\u8bd5\u548c\u663e\u793a\u547d\u4ee4\u6392\u67e5 EtherChannel \u95ee\u9898\uff08\u5982 <code>show etherchannel detail<\/code> \u548c <code>show interfaces<\/code>\uff09\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<h3>Configure and verify common Spanning Tree Protocols (RSTP, MST) and Spanning Tree enhancements such as root guard and BPDU guard<\/h3>\n<ol>\n<li>\n<p><strong>Spanning Tree Protocol (STP) \u57fa\u7840\u77e5\u8bc6<\/strong><\/p>\n<ul>\n<li>\u7406\u89e3 STP \u7684\u4f5c\u7528\u3001\u5de5\u4f5c\u539f\u7406\u53ca\u5176\u9632\u6b62\u7f51\u7edc\u73af\u8def\u7684\u673a\u5236\u3002<\/li>\n<li>\u719f\u6089\u5e38\u89c1\u7684 Spanning Tree \u534f\u8bae\u7248\u672c\uff0c\u5982 802.1D (STP)\u3001802.1w (RSTP) \u548c 802.1s (MST)\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\n<p><strong>\u914d\u7f6e\u548c\u9a8c\u8bc1 STP<\/strong><\/p>\n<ul>\n<li>\u5982\u4f55\u914d\u7f6e RSTP \u548c MST\uff08\u5305\u62ec\u547d\u4ee4 <code>spanning-tree mode rapid-pvst<\/code> \u548c <code>spanning-tree mode mst<\/code>\uff09\u3002<\/li>\n<li>\u786e\u8ba4 Spanning Tree \u7684\u8fd0\u884c\u72b6\u6001\u548c\u914d\u7f6e\uff08\u4f7f\u7528 <code>show spanning-tree<\/code> \u548c <code>show spanning-tree mst<\/code>\uff09\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\n<p><strong>STP \u589e\u5f3a\u529f\u80fd<\/strong><\/p>\n<ul>\n<li>Root Guard\uff1a\u9632\u6b62\u63a5\u5165\u5c42\u4ea4\u6362\u673a\u6210\u4e3a\u6839\u6865\u3002<\/li>\n<li>BPDU Guard\uff1a\u9632\u6b62\u7aef\u53e3\u63a5\u6536\u5230 BPDU \u5305\u540e\u8fdb\u5165\u9519\u8bef\u72b6\u6001\u3002<\/li>\n<li>\u914d\u7f6e\u548c\u9a8c\u8bc1 STP \u589e\u5f3a\u529f\u80fd\uff08\u4f7f\u7528\u547d\u4ee4 <code>spanning-tree guard root<\/code> \u548c <code>spanning-tree bpduguard enable<\/code>\uff09\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\n<p><strong>\u6545\u969c\u6392\u9664<\/strong><\/p>\n<ul>\n<li>\u5e38\u89c1\u95ee\u9898\u5982\u6839\u6865\u9009\u4e3e\u4e0d\u6b63\u786e\u3001\u73af\u8def\u7b49\u3002<\/li>\n<li>\u4f7f\u7528\u8c03\u8bd5\u548c\u663e\u793a\u547d\u4ee4\u6392\u67e5 STP \u95ee\u9898\uff08\u5982 <code>show spanning-tree detail<\/code> \u548c <code>debug spanning-tree events<\/code>\uff09\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<h2>Layer 3<\/h2>\n<h3>Compare routing concepts of EIGRP and OSPF<\/h3>\n<ol>\n<li>\n<p><strong>\u534f\u8bae\u7c7b\u578b<\/strong><\/p>\n<ul>\n<li>EIGRP\uff1a\u9ad8\u7ea7\u8ddd\u79bb\u77e2\u91cf\u8def\u7531\u534f\u8bae\uff08Advanced Distance Vector\uff09\u3002<\/li>\n<li>OSPF\uff1a\u94fe\u8def\u72b6\u6001\u8def\u7531\u534f\u8bae\uff08Link State\uff09\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\n<p><strong>\u8d1f\u8f7d\u5747\u8861<\/strong><\/p>\n<ul>\n<li>EIGRP \u652f\u6301\u4e0d\u7b49\u4ef7\u8d1f\u8f7d\u5747\u8861\uff08\u4f7f\u7528 <code>variance<\/code> \u547d\u4ee4\uff09\u3002<\/li>\n<li>OSPF \u652f\u6301\u7b49\u4ef7\u8d1f\u8f7d\u5747\u8861\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\n<p><strong>\u8def\u5f84\u9009\u62e9<\/strong><\/p>\n<ul>\n<li>EIGRP \u4f7f\u7528\u5ea6\u91cf\u503c\uff08\u5e26\u5bbd\u3001\u5ef6\u8fdf\u3001\u8d1f\u8f7d\u3001\u53ef\u9760\u6027\u7b49\uff09\u9009\u62e9\u6700\u4f73\u8def\u5f84\u3002<\/li>\n<li>OSPF \u4f7f\u7528\u5e26\u5bbd\u4f5c\u4e3a\u5ea6\u91cf\u503c\uff0c\u5e76\u901a\u8fc7 Dijkstra \u7b97\u6cd5\u9009\u62e9\u6700\u77ed\u8def\u5f84\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\n<p><strong>\u8def\u5f84\u64cd\u4f5c<\/strong><\/p>\n<ul>\n<li>EIGRP \u4f7f\u7528\u90bb\u5c45\u5173\u7cfb\u548c\u62d3\u6251\u8868\u8fdb\u884c\u8def\u5f84\u8ba1\u7b97\u548c\u66f4\u65b0\u3002<\/li>\n<li>OSPF \u4f7f\u7528\u94fe\u8def\u72b6\u6001\u5e7f\u544a\uff08LSA\uff09\u548c\u94fe\u8def\u72b6\u6001\u6570\u636e\u5e93\uff08LSDB\uff09\u8fdb\u884c\u8def\u5f84\u8ba1\u7b97\u548c\u66f4\u65b0\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\n<p><strong>\u5ea6\u91cf<\/strong><\/p>\n<ul>\n<li>EIGRP \u7684\u5ea6\u91cf\u516c\u5f0f\u7efc\u5408\u8003\u8651\u5e26\u5bbd\u548c\u5ef6\u8fdf\u3002<\/li>\n<li>OSPF \u7684\u5ea6\u91cf\u503c\u57fa\u4e8e\u5e26\u5bbd\u8ba1\u7b97\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\n<p><strong>\u533a\u57df\u7c7b\u578b\uff08\u4ec5\u9650 OSPF\uff09<\/strong><\/p>\n<ul>\n<li>OSPF \u4e2d\u6709\u4e0d\u540c\u7c7b\u578b\u7684\u533a\u57df\uff0c\u5982\u9aa8\u5e72\u533a\u57df\uff08Area 0\uff09\u3001\u666e\u901a\u533a\u57df\u3001Stub \u533a\u57df\u548c NSSA\uff08Not-So-Stubby Area\uff09\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<h3>Configure simple OSPFv2\/v3 environments<\/h3>\n<ol>\n<li>\n<p><strong>\u57fa\u672c OSPF \u914d\u7f6e<\/strong><\/p>\n<ul>\n<li>\u914d\u7f6e OSPFv2\uff08\u9002\u7528\u4e8e IPv4\uff09\u548c OSPFv3\uff08\u9002\u7528\u4e8e IPv6\uff09\u7684\u57fa\u7840\u914d\u7f6e\uff0c\u5305\u62ec Router ID\u3001\u7f51\u7edc\u7c7b\u578b\u7b49\u3002<\/li>\n<li>\u521b\u5efa\u548c\u7ba1\u7406\u591a\u4e2a\u666e\u901a\u533a\u57df\uff0c\u5e76\u914d\u7f6e\u533a\u57df\u95f4\u8def\u7531\u6c47\u603b\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\n<p><strong>\u90bb\u5c45\u90bb\u63a5<\/strong><\/p>\n<ul>\n<li>\u914d\u7f6e\u548c\u9a8c\u8bc1 OSPF \u90bb\u5c45\u5173\u7cfb\uff08\u4f7f\u7528\u547d\u4ee4 <code>show ip ospf neighbor<\/code> \u548c <code>show ipv6 ospf neighbor<\/code>\uff09\u3002<\/li>\n<li>\u4e86\u89e3 OSPF \u90bb\u5c45\u7684\u72b6\u6001\u548c\u5f62\u6210\u8fc7\u7a0b\uff08Down\u3001Init\u30012-Way\u3001Full \u7b49\uff09\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\n<p><strong>\u7f51\u7edc\u7c7b\u578b<\/strong><\/p>\n<ul>\n<li>\u914d\u7f6e\u548c\u9a8c\u8bc1 OSPF \u70b9\u5bf9\u70b9\uff08point-to-point\uff09\u548c\u5e7f\u64ad\uff08broadcast\uff09\u7f51\u7edc\u7c7b\u578b\u3002<\/li>\n<li>\u8bbe\u7f6e\u88ab\u52a8\u63a5\u53e3\u4ee5\u9650\u5236 OSPF \u7684\u5e7f\u544a\uff08\u4f7f\u7528\u547d\u4ee4 <code>passive-interface<\/code>\uff09\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\n<p><strong>\u8def\u7531\u6c47\u603b\u548c\u8fc7\u6ee4<\/strong><\/p>\n<ul>\n<li>\u914d\u7f6e OSPF \u8def\u7531\u6c47\u603b\uff08Area Summary \u548c ASBR Summary\uff09\u3002<\/li>\n<li>\u914d\u7f6e OSPF \u8def\u7531\u8fc7\u6ee4\u4ee5\u63a7\u5236\u7279\u5b9a\u8def\u7531\u7684\u4f20\u64ad\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<h3>Configure and verify eBGP between directly connected neighbors<\/h3>\n<ol>\n<li>\n<p><strong>\u57fa\u672c eBGP \u914d\u7f6e<\/strong><\/p>\n<ul>\n<li>\u914d\u7f6e eBGP \u90bb\u5c45\u5173\u7cfb\uff0c\u786e\u4fdd\u90bb\u5c45\u4e4b\u95f4\u662f\u76f4\u63a5\u8fde\u63a5\u7684\uff08\u4f7f\u7528\u547d\u4ee4 <code>neighbor<\/code> \u914d\u7f6e BGP \u90bb\u5c45\uff09\u3002<\/li>\n<li>\u9a8c\u8bc1 eBGP \u90bb\u5c45\u5173\u7cfb\u7684\u5efa\u7acb\u548c\u72b6\u6001\uff08\u4f7f\u7528\u547d\u4ee4 <code>show ip bgp summary<\/code>\uff09\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\n<p><strong>\u6700\u4f73\u8def\u5f84\u9009\u62e9\u7b97\u6cd5<\/strong><\/p>\n<ul>\n<li>\u7406\u89e3 BGP \u7684\u6700\u4f73\u8def\u5f84\u9009\u62e9\u8fc7\u7a0b\uff0c\u5305\u62ec\u8def\u7531\u5c5e\u6027\u5982 AS Path\u3001Next Hop\u3001Local Preference\u3001MED \u7b49\u7684\u4f5c\u7528\u3002<\/li>\n<li>\u4f7f\u7528\u547d\u4ee4 <code>show ip bgp<\/code> \u67e5\u770b BGP \u8def\u7531\u8868\u548c\u6700\u4f73\u8def\u5f84\u9009\u62e9\u7ed3\u679c\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<h3>Describe policy-based routing<\/h3>\n<ol>\n<li>\n<p><strong>\u7b56\u7565\u8def\u7531\u57fa\u7840<\/strong><\/p>\n<ul>\n<li>\u7406\u89e3\u7b56\u7565\u8def\u7531\u7684\u6982\u5ff5\u548c\u7528\u9014\uff0c\u901a\u8fc7\u7279\u5b9a\u7684\u7b56\u7565\u6765\u63a7\u5236\u6d41\u91cf\u7684\u8f6c\u53d1\u8def\u5f84\uff0c\u800c\u4e0d\u662f\u4f9d\u8d56\u4e8e\u8def\u7531\u8868\u7684\u9009\u62e9\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\n<p><strong>\u914d\u7f6e\u7b56\u7565\u8def\u7531<\/strong><\/p>\n<ul>\n<li>\u521b\u5efa\u5e76\u5e94\u7528\u8def\u7531\u7b56\u7565\uff08Policy-Based Routing\uff09\uff0c\u5305\u62ec\u914d\u7f6e\u8bbf\u95ee\u63a7\u5236\u5217\u8868\uff08ACL\uff09\u548c\u8def\u7531\u7b56\u7565\u6620\u5c04\uff08Route-Map\uff09\u3002<\/li>\n<li>\u4f7f\u7528\u547d\u4ee4 <code>ip policy route-map<\/code> \u5c06\u7b56\u7565\u5e94\u7528\u5230\u7279\u5b9a\u63a5\u53e3\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\n<p><strong>\u9a8c\u8bc1\u548c\u6545\u969c\u6392\u9664<\/strong><\/p>\n<ul>\n<li>\u4f7f\u7528 <code>show route-map<\/code>\u3001<code>show ip policy<\/code> \u548c <code>show access-lists<\/code> \u7b49\u547d\u4ee4\u9a8c\u8bc1\u548c\u6392\u67e5\u7b56\u7565\u8def\u7531\u7684\u914d\u7f6e\u548c\u6548\u679c\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<h2>Wireless<\/h2>\n<h3>Describe Layer 1 concepts<\/h3>\n<ol>\n<li>\n<p><strong>RF Power\uff08\u5c04\u9891\u529f\u7387\uff09<\/strong><\/p>\n<ul>\n<li>\u7406\u89e3\u5c04\u9891\u529f\u7387\u7684\u5b9a\u4e49\u53ca\u5176\u5bf9\u65e0\u7ebf\u4fe1\u53f7\u5f3a\u5ea6\u7684\u5f71\u54cd\u3002<\/li>\n<li>\u4e86\u89e3 dBm\uff08\u5206\u8d1d\u6beb\u74e6\uff09\u4f5c\u4e3a\u529f\u7387\u5355\u4f4d\u7684\u610f\u4e49\u548c\u4f7f\u7528\u65b9\u6cd5\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\n<p><strong>RSSI\uff08Received Signal Strength Indicator\uff09<\/strong><\/p>\n<ul>\n<li>\u7406\u89e3 RSSI \u7684\u6982\u5ff5\u53ca\u5176\u5bf9\u65e0\u7ebf\u5ba2\u6237\u7aef\u8bbe\u5907\u63a5\u6536\u4fe1\u53f7\u5f3a\u5ea6\u7684\u8868\u793a\u3002<\/li>\n<li>\u4e86\u89e3\u5982\u4f55\u901a\u8fc7 RSSI \u5224\u65ad\u4fe1\u53f7\u7684\u5f3a\u5f31\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\n<p><strong>SNR\uff08Signal-to-Noise Ratio\uff09<\/strong><\/p>\n<ul>\n<li>\u7406\u89e3\u4fe1\u566a\u6bd4\uff08SNR\uff09\u7684\u6982\u5ff5\u53ca\u5176\u5bf9\u65e0\u7ebf\u901a\u4fe1\u8d28\u91cf\u7684\u5f71\u54cd\u3002<\/li>\n<li>\u4e86\u89e3 SNR \u7684\u8ba1\u7b97\u65b9\u6cd5\u53ca\u5176\u5728\u65e0\u7ebf\u7f51\u7edc\u6027\u80fd\u8bc4\u4f30\u4e2d\u7684\u4f5c\u7528\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\n<p><strong>Interference\uff08\u5e72\u6270\uff09\u548c Noise\uff08\u566a\u58f0\uff09<\/strong><\/p>\n<ul>\n<li>\u8bc6\u522b\u548c\u7406\u89e3\u5e38\u89c1\u7684\u65e0\u7ebf\u5e72\u6270\u6e90\uff08\u5982\u5176\u4ed6\u65e0\u7ebf\u8bbe\u5907\u3001\u5fae\u6ce2\u7089\u7b49\uff09\u3002<\/li>\n<li>\u4e86\u89e3\u566a\u58f0\u5bf9\u65e0\u7ebf\u4fe1\u53f7\u8d28\u91cf\u7684\u5f71\u54cd\u53ca\u5176\u6d4b\u91cf\u65b9\u6cd5\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\n<p><strong>Bands\uff08\u9891\u6bb5\uff09\u548c Channels\uff08\u4fe1\u9053\uff09<\/strong><\/p>\n<ul>\n<li>\u4e86\u89e3\u5e38\u89c1\u7684\u65e0\u7ebf\u9891\u6bb5\uff08\u5982 2.4 GHz \u548c 5 GHz\uff09\u7684\u7279\u6027\u548c\u4f7f\u7528\u60c5\u51b5\u3002<\/li>\n<li>\u7406\u89e3\u65e0\u7ebf\u4fe1\u9053\u7684\u6982\u5ff5\u53ca\u5176\u5728\u4e0d\u540c\u9891\u6bb5\u4e2d\u7684\u5206\u5e03\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\n<p><strong>Wireless Client Devices Capabilities\uff08\u65e0\u7ebf\u5ba2\u6237\u7aef\u8bbe\u5907\u80fd\u529b\uff09<\/strong><\/p>\n<ul>\n<li>\u4e86\u89e3\u4e0d\u540c\u7c7b\u578b\u7684\u65e0\u7ebf\u5ba2\u6237\u7aef\u8bbe\u5907\u53ca\u5176\u65e0\u7ebf\u901a\u4fe1\u80fd\u529b\uff08\u5982\u652f\u6301\u7684\u9891\u6bb5\u3001\u6700\u5927\u4f20\u8f93\u901f\u7387\u7b49\uff09\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<h3>Describe AP modes and antenna types<\/h3>\n<ol>\n<li>\n<p><strong>AP Modes\uff08\u63a5\u5165\u70b9\u6a21\u5f0f\uff09<\/strong><\/p>\n<ul>\n<li>\u7406\u89e3\u4e0d\u540c AP \u6a21\u5f0f\u7684\u4f5c\u7528\u548c\u5e94\u7528\u573a\u666f\uff0c\u5982\uff1a<\/li>\n<li>Local Mode\uff08\u672c\u5730\u6a21\u5f0f\uff09\uff1a\u9ed8\u8ba4\u6a21\u5f0f\uff0c\u7528\u4e8e\u8986\u76d6\u65e0\u7ebf\u7f51\u7edc\u3002<\/li>\n<li>FlexConnect Mode\uff1a\u5141\u8bb8 AP \u5728\u4e22\u5931\u4e0e\u65e0\u7ebf\u63a7\u5236\u5668\uff08WLC\uff09\u7684\u8fde\u63a5\u65f6\u7ee7\u7eed\u5de5\u4f5c\u3002<\/li>\n<li>Monitor Mode\uff1a\u7528\u4e8e\u76d1\u63a7\u65e0\u7ebf\u73af\u5883\uff0c\u65e0\u5b9e\u9645\u6570\u636e\u4f20\u8f93\u3002<\/li>\n<li>Sniffer Mode\uff1a\u7528\u4e8e\u6355\u83b7\u65e0\u7ebf\u6570\u636e\u5305\u3002<\/li>\n<li>Rogue Detector Mode\uff1a\u7528\u4e8e\u68c0\u6d4b\u548c\u62a5\u544a\u4e0d\u660e\u7684 AP\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\n<p><strong>Antenna Types\uff08\u5929\u7ebf\u7c7b\u578b\uff09<\/strong><\/p>\n<ul>\n<li>\u4e86\u89e3\u5e38\u89c1\u7684\u5929\u7ebf\u7c7b\u578b\u53ca\u5176\u7279\u6027\uff1a<\/li>\n<li>\u5168\u5411\u5929\u7ebf\uff08Omnidirectional Antenna\uff09\uff1a\u63d0\u4f9b 360 \u5ea6\u7684\u8986\u76d6\u8303\u56f4\u3002<\/li>\n<li>\u5b9a\u5411\u5929\u7ebf\uff08Directional Antenna\uff09\uff1a\u63d0\u4f9b\u96c6\u4e2d\u5728\u4e00\u4e2a\u65b9\u5411\u4e0a\u7684\u4fe1\u53f7\u8986\u76d6\uff0c\u9002\u7528\u4e8e\u957f\u8ddd\u79bb\u901a\u4fe1\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<h3>Describe access point discovery and join process<\/h3>\n<ol>\n<li>\n<p><strong>Discovery Algorithms\uff08\u53d1\u73b0\u7b97\u6cd5\uff09<\/strong><\/p>\n<ul>\n<li>\u7406\u89e3 AP \u53d1\u73b0 WLC \u7684\u8fc7\u7a0b\u548c\u7b97\u6cd5\uff0c\u5982\u5e7f\u64ad\u3001\u5355\u64ad\u3001DNS \u89e3\u6790\u7b49\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\n<p><strong>WLC Selection Process\uff08WLC \u9009\u62e9\u8fc7\u7a0b\uff09<\/strong><\/p>\n<ul>\n<li>\u4e86\u89e3 AP \u5982\u4f55\u9009\u62e9\u9002\u5f53\u7684 WLC\uff0c\u5305\u62ec\u4f18\u5148\u7ea7\u3001\u8d1f\u8f7d\u5747\u8861\u7b49\u56e0\u7d20\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<h3>Describe the main principles and use cases for Layer 2 and Layer 3 roaming<\/h3>\n<ol>\n<li>\n<p><strong>Layer 2 Roaming\uff08\u7b2c\u4e8c\u5c42\u6f2b\u6e38\uff09<\/strong><\/p>\n<ul>\n<li>\u7406\u89e3 Layer 2 \u6f2b\u6e38\u7684\u6982\u5ff5\u53ca\u5176\u5728\u540c\u4e00\u5b50\u7f51\u5185 AP \u4e4b\u95f4\u5207\u6362\u7684\u673a\u5236\u3002<\/li>\n<li>\u4e86\u89e3 Layer 2 \u6f2b\u6e38\u7684\u4f18\u70b9\u548c\u5e38\u89c1\u5e94\u7528\u573a\u666f\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\n<p><strong>Layer 3 Roaming\uff08\u7b2c\u4e09\u5c42\u6f2b\u6e38\uff09<\/strong><\/p>\n<ul>\n<li>\u7406\u89e3 Layer 3 \u6f2b\u6e38\u7684\u6982\u5ff5\u53ca\u5176\u5728\u4e0d\u540c\u5b50\u7f51\u4e4b\u95f4 AP \u5207\u6362\u7684\u673a\u5236\u3002<\/li>\n<li>\u4e86\u89e3 Layer 3 \u6f2b\u6e38\u7684\u6311\u6218\u53ca\u5176\u89e3\u51b3\u65b9\u6848\uff0c\u5982\u4f7f\u7528 Mobility Anchor \u548c Mobility Tunnel\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<h3>Troubleshoot WLAN configuration and wireless client connectivity issues using GUI only<\/h3>\n<ol>\n<li><strong>GUI-based Troubleshooting\uff08\u57fa\u4e8e GUI \u7684\u6545\u969c\u6392\u9664\uff09<\/strong>\n<ul>\n<li>\u4f7f\u7528\u65e0\u7ebf\u63a7\u5236\u5668\uff08WLC\uff09\u6216\u5176\u4ed6\u7ba1\u7406\u5de5\u5177\u7684 GUI \u754c\u9762\u6392\u67e5 WLAN \u914d\u7f6e\u548c\u5ba2\u6237\u7aef\u8fde\u63a5\u95ee\u9898\u3002<\/li>\n<li>\u4e86\u89e3\u5e38\u7528 GUI \u5de5\u5177\u548c\u754c\u9762\uff0c\u5982\u5ba2\u6237\u7aef\u8fde\u63a5\u72b6\u6001\u3001AP \u72b6\u6001\u3001\u4fe1\u53f7\u5f3a\u5ea6\u7b49\u4fe1\u606f\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<h3>Describe wireless segmentation with groups, profiles, and tags<\/h3>\n<ol>\n<li>\n<p><strong>Wireless Segmentation\uff08\u65e0\u7ebf\u5206\u6bb5\uff09<\/strong><\/p>\n<ul>\n<li>\u7406\u89e3\u65e0\u7ebf\u5206\u6bb5\u7684\u76ee\u7684\u548c\u65b9\u6cd5\uff0c\u901a\u8fc7\u5206\u7ec4\u3001\u914d\u7f6e\u6587\u4ef6\u548c\u6807\u7b7e\u6765\u5b9e\u73b0\u7f51\u7edc\u8d44\u6e90\u7684\u7ba1\u7406\u548c\u63a7\u5236\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\n<p><strong>Groups\uff08\u7ec4\uff09<\/strong><\/p>\n<ul>\n<li>\u4e86\u89e3\u5982\u4f55\u521b\u5efa\u548c\u7ba1\u7406\u4e0d\u540c\u7684 AP \u7ec4\uff0c\u4ee5\u5b9e\u73b0\u4e0d\u540c\u7684\u8986\u76d6\u548c\u7ba1\u7406\u7b56\u7565\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\n<p><strong>Profiles\uff08\u914d\u7f6e\u6587\u4ef6\uff09<\/strong><\/p>\n<ul>\n<li>\u4e86\u89e3\u5982\u4f55\u4f7f\u7528\u914d\u7f6e\u6587\u4ef6\u6765\u5b9a\u4e49\u65e0\u7ebf\u7f51\u7edc\u7684\u53c2\u6570\uff0c\u5982 SSID\u3001\u52a0\u5bc6\u65b9\u5f0f\u7b49\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\n<p><strong>Tags\uff08\u6807\u7b7e\uff09<\/strong><\/p>\n<ul>\n<li>\u7406\u89e3\u6807\u7b7e\u7684\u4f5c\u7528\uff0c\u901a\u8fc7\u6807\u7b7e\u5c06\u7279\u5b9a\u914d\u7f6e\u5e94\u7528\u5230\u76f8\u5e94\u7684 AP \u548c\u5ba2\u6237\u7aef\u8bbe\u5907\u4e0a\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<h2>IP Services<\/h2>\n<h3>Interpret network time protocol configurations such as NTP and PTP<\/h3>\n<ol>\n<li>\n<p><strong>NTP\uff08Network Time Protocol\uff09<\/strong><\/p>\n<ul>\n<li><strong>\u57fa\u672c\u6982\u5ff5<\/strong><\/li>\n<li>\u7406\u89e3 NTP \u7684\u4f5c\u7528\u53ca\u5176\u5728\u7f51\u7edc\u4e2d\u7684\u91cd\u8981\u6027\uff0c\u5373\u540c\u6b65\u7f51\u7edc\u8bbe\u5907\u7684\u65f6\u95f4\u3002<\/li>\n<li><strong>\u914d\u7f6e\u548c\u9a8c\u8bc1<\/strong><\/li>\n<li>\u914d\u7f6e NTP \u670d\u52a1\u5668\u548c\u5ba2\u6237\u7aef\uff08\u4f7f\u7528\u547d\u4ee4 <code>ntp server<\/code>\uff09\u3002<\/li>\n<li>\u9a8c\u8bc1 NTP \u540c\u6b65\u72b6\u6001\uff08\u4f7f\u7528\u547d\u4ee4 <code>show ntp status<\/code> \u548c <code>show ntp associations<\/code>\uff09\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\n<p><strong>PTP\uff08Precision Time Protocol\uff09<\/strong><\/p>\n<ul>\n<li><strong>\u57fa\u672c\u6982\u5ff5<\/strong><\/li>\n<li>\u7406\u89e3 PTP \u7684\u4f5c\u7528\u53ca\u5176\u5728\u9700\u8981\u9ad8\u7cbe\u5ea6\u65f6\u95f4\u540c\u6b65\u7684\u7f51\u7edc\u4e2d\u7684\u5e94\u7528\u3002<\/li>\n<li><strong>\u914d\u7f6e\u548c\u9a8c\u8bc1<\/strong><\/li>\n<li>\u914d\u7f6e PTP\uff08\u4e3b\u8981\u7528\u4e8e\u5de5\u4e1a\u7f51\u7edc\u548c\u91d1\u878d\u7f51\u7edc\u4e2d\u7684\u9ad8\u7cbe\u5ea6\u65f6\u95f4\u540c\u6b65\uff09\u3002<\/li>\n<li>\u9a8c\u8bc1 PTP \u540c\u6b65\u72b6\u6001\uff08\u4f7f\u7528 <code>show ptp<\/code> \u547d\u4ee4\uff0c\u5177\u4f53\u547d\u4ee4\u4f9d\u8bbe\u5907\u800c\u5f02\uff09\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<h3>Configure NAT\/PAT<\/h3>\n<ol>\n<li>\n<p><strong>NAT\uff08Network Address Translation\uff09<\/strong><\/p>\n<ul>\n<li><strong>\u57fa\u672c\u6982\u5ff5<\/strong><\/li>\n<li>\u7406\u89e3 NAT \u7684\u4f5c\u7528\uff0c\u5c24\u5176\u662f\u5c06\u79c1\u6709 IP \u5730\u5740\u8f6c\u6362\u4e3a\u516c\u5171 IP \u5730\u5740\u3002<\/li>\n<li><strong>\u914d\u7f6e<\/strong><\/li>\n<li>\u9759\u6001 NAT\uff08Static NAT\uff09\uff1a\u4f7f\u7528\u547d\u4ee4 <code>ip nat inside source static [local-ip] [global-ip]<\/code>\u3002<\/li>\n<li>\u52a8\u6001 NAT\uff08Dynamic NAT\uff09\uff1a\u914d\u7f6e NAT \u6c60\uff08\u4f7f\u7528\u547d\u4ee4 <code>ip nat pool<\/code> \u548c <code>ip nat inside source list<\/code>\uff09\u3002<\/li>\n<li><strong>\u9a8c\u8bc1<\/strong><\/li>\n<li>\u9a8c\u8bc1 NAT \u914d\u7f6e\u548c\u8f6c\u6362\u72b6\u6001\uff08\u4f7f\u7528\u547d\u4ee4 <code>show ip nat translations<\/code> \u548c <code>show ip nat statistics<\/code>\uff09\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\n<p><strong>PAT\uff08Port Address Translation\uff09<\/strong><\/p>\n<ul>\n<li><strong>\u57fa\u672c\u6982\u5ff5<\/strong><\/li>\n<li>\u7406\u89e3 PAT \u7684\u4f5c\u7528\uff0c\u5373\u901a\u8fc7\u7aef\u53e3\u53f7\u5c06\u591a\u4e2a\u79c1\u6709 IP \u5730\u5740\u6620\u5c04\u5230\u5355\u4e2a\u516c\u5171 IP \u5730\u5740\u3002<\/li>\n<li><strong>\u914d\u7f6e<\/strong><\/li>\n<li>\u914d\u7f6e PAT\uff08\u4f7f\u7528\u547d\u4ee4 <code>ip nat inside source list [access-list] interface [interface] overload<\/code>\uff09\u3002<\/li>\n<li><strong>\u9a8c\u8bc1<\/strong><\/li>\n<li>\u9a8c\u8bc1 PAT \u914d\u7f6e\u548c\u8f6c\u6362\u72b6\u6001\uff08\u4f7f\u7528\u547d\u4ee4 <code>show ip nat translations<\/code> \u548c <code>show ip nat statistics<\/code>\uff09\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<h3>Configure first hop redundancy protocols, such as HSRP, VRRP<\/h3>\n<ol>\n<li>\n<p><strong>HSRP\uff08Hot Standby Router Protocol\uff09<\/strong><\/p>\n<ul>\n<li><strong>\u57fa\u672c\u6982\u5ff5<\/strong><\/li>\n<li>\u7406\u89e3 HSRP \u7684\u4f5c\u7528\u53ca\u5176\u63d0\u4f9b\u7f51\u5173\u5197\u4f59\u7684\u65b9\u5f0f\u3002<\/li>\n<li><strong>\u914d\u7f6e<\/strong><\/li>\n<li>\u914d\u7f6e HSRP \u7ec4\uff08\u4f7f\u7528\u547d\u4ee4 <code>standby [group-number] ip [virtual-ip]<\/code>\uff09\u3002<\/li>\n<li>\u8bbe\u7f6e\u4f18\u5148\u7ea7\u548c\u62a2\u5360\uff08\u4f7f\u7528\u547d\u4ee4 <code>standby [group-number] priority [priority]<\/code> \u548c <code>standby [group-number] preempt<\/code>\uff09\u3002<\/li>\n<li><strong>\u9a8c\u8bc1<\/strong><\/li>\n<li>\u9a8c\u8bc1 HSRP \u914d\u7f6e\u548c\u72b6\u6001\uff08\u4f7f\u7528\u547d\u4ee4 <code>show standby<\/code>\uff09\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\n<p><strong>VRRP\uff08Virtual Router Redundancy Protocol\uff09<\/strong><\/p>\n<ul>\n<li><strong>\u57fa\u672c\u6982\u5ff5<\/strong><\/li>\n<li>\u7406\u89e3 VRRP \u7684\u4f5c\u7528\u53ca\u5176\u63d0\u4f9b\u7f51\u5173\u5197\u4f59\u7684\u65b9\u5f0f\u3002<\/li>\n<li><strong>\u914d\u7f6e<\/strong><\/li>\n<li>\u914d\u7f6e VRRP \u7ec4\uff08\u4f7f\u7528\u547d\u4ee4 <code>vrrp [group-number] ip [virtual-ip]<\/code>\uff09\u3002<\/li>\n<li>\u8bbe\u7f6e\u4f18\u5148\u7ea7\u548c\u62a2\u5360\uff08\u4f7f\u7528\u547d\u4ee4 <code>vrrp [group-number] priority [priority]<\/code> \u548c <code>vrrp [group-number] preempt<\/code>\uff09\u3002<\/li>\n<li><strong>\u9a8c\u8bc1<\/strong><\/li>\n<li>\u9a8c\u8bc1 VRRP \u914d\u7f6e\u548c\u72b6\u6001\uff08\u4f7f\u7528\u547d\u4ee4 <code>show vrrp<\/code>\uff09\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<h3>Describe multicast protocols, such as RPF check, PIM and IGMP v2\/v3<\/h3>\n<ol>\n<li>\n<p><strong>RPF\uff08Reverse Path Forwarding\uff09Check<\/strong><\/p>\n<ul>\n<li><strong>\u57fa\u672c\u6982\u5ff5<\/strong><\/li>\n<li>\u7406\u89e3 RPF \u68c0\u67e5\u7684\u4f5c\u7528\uff0c\u5373\u786e\u4fdd\u591a\u64ad\u6570\u636e\u5305\u4ece\u6700\u4f18\u8def\u5f84\u5230\u8fbe\u3002<\/li>\n<li><strong>\u64cd\u4f5c<\/strong><\/li>\n<li>RPF \u68c0\u67e5\u901a\u8fc7\u9a8c\u8bc1\u6570\u636e\u5305\u5230\u8fbe\u7684\u63a5\u53e3\u662f\u5426\u4e0e\u8def\u7531\u8868\u4e2d\u7684\u6700\u4f73\u8def\u5f84\u4e00\u81f4\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\n<p><strong>PIM\uff08Protocol Independent Multicast\uff09<\/strong><\/p>\n<ul>\n<li><strong>\u57fa\u672c\u6982\u5ff5<\/strong><\/li>\n<li>\u7406\u89e3 PIM \u7684\u4f5c\u7528\u53ca\u5176\u72ec\u7acb\u4e8e\u5e95\u5c42\u8def\u7531\u534f\u8bae\u7684\u7279\u6027\u3002<\/li>\n<li><strong>\u7c7b\u578b<\/strong><\/li>\n<li>PIM-DM\uff08Dense Mode\uff09\uff1a\u9002\u7528\u4e8e\u5bc6\u96c6\u591a\u64ad\u73af\u5883\uff0c\u4f7f\u7528\u6cdb\u6d2a\u548c\u526a\u679d\u673a\u5236\u3002<\/li>\n<li>PIM-SM\uff08Sparse Mode\uff09\uff1a\u9002\u7528\u4e8e\u7a00\u758f\u591a\u64ad\u73af\u5883\uff0c\u4f7f\u7528\u5171\u4eab\u6811\u548c\u6e90\u6811\u3002<\/li>\n<li><strong>\u914d\u7f6e\u548c\u9a8c\u8bc1<\/strong><\/li>\n<li>\u914d\u7f6e PIM-DM\uff08\u4f7f\u7528\u547d\u4ee4 <code>ip pim dense-mode<\/code>\uff09\u548c PIM-SM\uff08\u4f7f\u7528\u547d\u4ee4 <code>ip pim sparse-mode<\/code>\uff09\u3002<\/li>\n<li>\u9a8c\u8bc1 PIM \u914d\u7f6e\u548c\u72b6\u6001\uff08\u4f7f\u7528\u547d\u4ee4 <code>show ip pim neighbor<\/code> \u548c <code>show ip pim interface<\/code>\uff09\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\n<p><strong>IGMP\uff08Internet Group Management Protocol\uff09v2\/v3<\/strong><\/p>\n<ul>\n<li><strong>\u57fa\u672c\u6982\u5ff5<\/strong><\/li>\n<li>\u7406\u89e3 IGMP \u7684\u4f5c\u7528\uff0c\u5373\u7528\u4e8e\u7ba1\u7406\u4e3b\u673a\u548c\u8def\u7531\u5668\u4e4b\u95f4\u7684\u591a\u64ad\u7ec4\u6210\u5458\u5173\u7cfb\u3002<\/li>\n<li><strong>\u7248\u672c\u5dee\u5f02<\/strong><\/li>\n<li>IGMPv2\uff1a\u652f\u6301\u79bb\u5f00\u7ec4\u6d88\u606f\uff08Leave Group Message\uff09\uff0c\u52a0\u901f\u7ec4\u6210\u5458\u7684\u79bb\u5f00\u3002<\/li>\n<li>IGMPv3\uff1a\u652f\u6301\u6e90\u7279\u5b9a\u591a\u64ad\uff08SSM\uff09\uff0c\u5141\u8bb8\u4e3b\u673a\u6307\u5b9a\u611f\u5174\u8da3\u7684\u591a\u64ad\u6e90\u3002<\/li>\n<li><strong>\u914d\u7f6e\u548c\u9a8c\u8bc1<\/strong><\/li>\n<li>\u914d\u7f6e IGMP\uff08\u4f7f\u7528\u547d\u4ee4 <code>ip igmp version [version-number]<\/code>\uff09\u3002<\/li>\n<li>\u9a8c\u8bc1 IGMP \u914d\u7f6e\u548c\u72b6\u6001\uff08\u4f7f\u7528\u547d\u4ee4 <code>show ip igmp groups<\/code> \u548c <code>show ip igmp interface<\/code>\uff09\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<blockquote>\n<p>\u53c2\u8003\u8d44\u6599<br \/>\n<a href=\"https:\/\/www.cisco.com\/c\/en\/us\/tech\/lan-switching\/virtual-lans-vlan-trunking-protocol-vlans-vtp\/index.html\">https:\/\/www.cisco.com\/c\/en\/us\/tech\/lan-switching\/virtual-lans-vlan-trunking-protocol-vlans-vtp\/index.html<\/a><br \/>\n<a href=\"https:\/\/www.cisco.com\/c\/en\/us\/tech\/lan-switching\/etherchannel\/index.html\">https:\/\/www.cisco.com\/c\/en\/us\/tech\/lan-switching\/etherchannel\/index.html<\/a><br \/>\n<a href=\"https:\/\/www.cisco.com\/c\/en\/us\/tech\/lan-switching\/spanning-tree-protocol\/index.html\">https:\/\/www.cisco.com\/c\/en\/us\/tech\/lan-switching\/spanning-tree-protocol\/index.html<\/a><br \/>\n<a href=\"https:\/\/www.cisco.com\/c\/en\/us\/tech\/lan-switching\/layer-three-switching-forwarding\/index.html\">https:\/\/www.cisco.com\/c\/en\/us\/tech\/lan-switching\/layer-three-switching-forwarding\/index.html<\/a><br \/>\n<a href=\"https:\/\/www.cisco.com\/c\/en\/us\/tech\/ip\/ip-routing\/index.html\">https:\/\/www.cisco.com\/c\/en\/us\/tech\/ip\/ip-routing\/index.html<\/a><br \/>\n<a href=\"https:\/\/www.cisco.com\/c\/en\/us\/tech\/wireless-2f-mobility\/wireless-fixed\/index.html\">https:\/\/www.cisco.com\/c\/en\/us\/tech\/wireless-2f-mobility\/wireless-fixed\/index.html<\/a><br \/>\n<a href=\"https:\/\/www.cisco.com\/c\/en\/us\/tech\/wireless-2f-mobility\/wireless-lan-wlan\/index.html\">https:\/\/www.cisco.com\/c\/en\/us\/tech\/wireless-2f-mobility\/wireless-lan-wlan\/index.html<\/a><br \/>\n<a href=\"https:\/\/www.cisco.com\/c\/en\/us\/tech\/ip\/ip-application-services\/index.html\">https:\/\/www.cisco.com\/c\/en\/us\/tech\/ip\/ip-application-services\/index.html<\/a><br \/>\n<a href=\"https:\/\/www.cisco.com\/c\/en\/us\/tech\/ip\/ip-multicast\/index.html\">https:\/\/www.cisco.com\/c\/en\/us\/tech\/ip\/ip-multicast\/index.html<\/a><\/p>\n<\/blockquote>\n","protected":false},"excerpt":{"rendered":"<p>\u672c\u6587\u4ecb\u7ecd\u4e86CCNP ENCOR 350-401 \u8003\u8bd5\u4e2d\u57fa\u7840\u8bbe\u65bd\u90e8\u5206\uff0c\u5305\u62ecLayer 2\u3001Layer 3\u3001\u65e0\u7ebf\u548cIP\u670d\u52a1\u3002Layer 2 \u6d89\u53ca802.1Q trunking\u3001EtherChannels\u3001Spanning Tree Protocol\u7b49\u7684\u914d\u7f6e\u548c\u6545\u969c\u6392\u9664\u3002Layer 3 \u6d89\u53caEIGRP\u548cOSPF\u7684\u8def\u7531\u6982\u5ff5\u5bf9\u6bd4\uff0c\u4ee5\u53caeBGP\u7684\u914d\u7f6e\u548c\u7b56\u7565\u8def\u7531\u3002\u65e0\u7ebf\u90e8\u5206\u6db5\u76d6\u5c04\u9891\u529f\u7387\u3001AP\u6a21\u5f0f\u3001\u63a5\u5165\u70b9\u53d1\u73b0\u548c\u8fde\u63a5\u8fc7\u7a0b\u4ee5\u53ca\u6f2b\u6e38\u539f\u7406\u3002IP\u670d\u52a1\u5305\u62ecNTP\/PTP\u65f6\u95f4\u534f\u8bae\u3001NAT\/PAT\u914d\u7f6e\u3001HSRP\/VRRP\u5197\u4f59\u534f\u8bae\u53ca\u591a\u64ad\u534f\u8bae\u3002<\/p>\n","protected":false},"author":3,"featured_media":447,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_jetpack_memberships_contains_paid_content":false},"categories":[29],"tags":[],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"https:\/\/blog.devops955.com\/swain\/wp-content\/uploads\/sites\/2\/2024\/04\/cisco-1.png","_links":{"self":[{"href":"https:\/\/blog.devops955.com\/swain\/wp-json\/wp\/v2\/posts\/478"}],"collection":[{"href":"https:\/\/blog.devops955.com\/swain\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.devops955.com\/swain\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.devops955.com\/swain\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.devops955.com\/swain\/wp-json\/wp\/v2\/comments?post=478"}],"version-history":[{"count":6,"href":"https:\/\/blog.devops955.com\/swain\/wp-json\/wp\/v2\/posts\/478\/revisions"}],"predecessor-version":[{"id":489,"href":"https:\/\/blog.devops955.com\/swain\/wp-json\/wp\/v2\/posts\/478\/revisions\/489"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/blog.devops955.com\/swain\/wp-json\/wp\/v2\/media\/447"}],"wp:attachment":[{"href":"https:\/\/blog.devops955.com\/swain\/wp-json\/wp\/v2\/media?parent=478"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.devops955.com\/swain\/wp-json\/wp\/v2\/categories?post=478"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.devops955.com\/swain\/wp-json\/wp\/v2\/tags?post=478"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}