forked from docs/doc-exports
Qin Ying, Fan
1e074c969a
Reviewed-by: Sarda, Priya <prsarda@noreply.gitea.eco.tsi-dev.otc-service.com> Co-authored-by: Qin Ying, Fan <fanqinying@huawei.com> Co-committed-by: Qin Ying, Fan <fanqinying@huawei.com>
31 lines
3.7 KiB
HTML
31 lines
3.7 KiB
HTML
<a name="overview_0006"></a><a name="overview_0006"></a>
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<h1 class="topictitle1">Application Scenarios</h1>
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<div id="body1572249356466"><div class="section" id="overview_0006__section01731659919"><h4 class="sectiontitle">Binding an EIP to an <span id="overview_0006__text176901045124816">ECS</span></h4><p id="overview_0006__p1519112520415"><strong id="overview_0006__b107671857171311">Scenario</strong></p>
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<p id="overview_0006__p1088213448420">You can bind an EIP to an <span id="overview_0006__text48281056105010">ECS</span> to enable the <span id="overview_0006__text4125253182920">ECS</span> to access the Internet.</p>
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<p id="overview_0006__p3189181519412"><strong id="overview_0006__b1920415423155">Related Services</strong></p>
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<div class="p" id="overview_0006__p18428163311413"><span id="overview_0006__text5272141055113">ECS</span>, <span id="overview_0006__text7540510204318">BMS</span>, or VPC<div class="fignone" id="overview_0006__fig5296943164112"><span class="figcap"><b>Figure 1 </b>Binding an EIP to a server</span><br><span><img id="overview_0006__image13296114394111" src="en-us_image_0000001844205418.png"></span></div>
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</div>
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</div>
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<div class="section" id="overview_0006__section13617128920"><h4 class="sectiontitle"><strong id="overview_0006__b2544194710198">Binding an EIP to a NAT Gateway</strong></h4><p id="overview_0006__p19720195113447"><strong id="overview_0006__b1884572313231">Scenario</strong></p>
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<p id="overview_0006__p83543161057">After an <span id="overview_0006__text1047423319388"></span><span id="overview_0006__text047443318382">EIP</span> is bound to a NAT gateway and SNAT and DNAT rules are added, multiple servers (such as <span id="overview_0006__text1582251765119">ECS</span>s and BMSs) can use the same <span id="overview_0006__text401729121011"></span><span id="overview_0006__text13286935111011">EIP</span> to access the Internet and provide services accessible from the Internet.</p>
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<p id="overview_0006__p19529447142516">An SNAT rule allows servers in a specific VPC subnet to use the same <span id="overview_0006__text4529547122514"></span><span id="overview_0006__text10529114713251">EIP</span> to access the Internet.</p>
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<p id="overview_0006__p1343222074212">A DNAT rule enables servers in a VPC to provide services accessible from the Internet.</p>
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<p id="overview_0006__p133121902456"><strong id="overview_0006__b44664013917">Related Services</strong></p>
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<p id="overview_0006__p8969131104510">NAT Gateway, cloud server (<span id="overview_0006__text164326125116">ECS</span> and BMSs), and VPC</p>
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<div class="fignone" id="overview_0006__fig1029924918435"><span class="figcap"><b>Figure 2 </b>EIP used by a NAT gateway</span><br><span><img id="overview_0006__image830054916438" src="en-us_image_0000001844364134.png"></span></div>
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</div>
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<div class="section" id="overview_0006__section174520374519"><h4 class="sectiontitle">Binding an EIP to a Load Balancer</h4><p id="overview_0006__p94931925144615"><strong id="overview_0006__b1218312919266">Scenario</strong></p>
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<p id="overview_0006__p6645101216445">After you attach an EIP to a load balancer, the load balancer can distribute requests from the Internet to backend servers.</p>
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<p id="overview_0006__p16110103154619"><strong id="overview_0006__b127791255152518">Related Services</strong></p>
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<p id="overview_0006__p069612210473">ELB, <span id="overview_0006__text1944153417513">ECS</span>, and VPC</p>
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<div class="fignone" id="overview_0006__fig1947716280447"><span class="figcap"><b>Figure 3 </b>EIP used by a load balancer</span><br><span><img id="overview_0006__image347719288444" src="en-us_image_0000001844364142.png"></span></div>
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</div>
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</div>
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<div>
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<div class="familylinks">
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<div class="parentlink"><strong>Parent topic:</strong> <a href="overview.html">Service Overview</a></div>
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</div>
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</div>
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