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"index_show"><a href="http://www.cdcfah.com/zh/"><span>展會(huì)信息</span></a></li></ul></div></nav><section class="wrap clearfix"><section class="container clearfix tcPro"><section class="home-main container clearfix"><div id="gqsetey" class="twoCol"><div id="mwdkok2" class="page-proshow clearfix"><p class="current"> 當(dāng)前位置:<a href="http://www.cdcfah.com/">首頁?<a href="http://www.cdcfah.com/cp/">產(chǎn)品供應(yīng)</a>?<a href="http://www.cdcfah.com/cp/second-_aqfh/">安全、防護(hù)</a>?<a href="http://www.cdcfah.com/cp/third-aqfh_qtaqfhsb/">其他安全防護(hù)設(shè)備</a>?山西華三負(fù)載均衡解決方案上海雪萊信息科技供應(yīng)</p><div id="nwipwyh" class="leftbox clearfix"><h1>山西華三負(fù)載均衡解決方案上海雪萊信息科技供應(yīng)</h1><div id="s7xegnu" class="proBig"><div id="yab2cjv" class="bigimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UploadFile/heixiang4/637172002901630860/7755282.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="3xlnp3l" class="smallimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UploadFile/heixiang4/637172002901630860/7755282.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="bamoaco" class="content"><p><span>需求數(shù)量：</span>0</p><p><span>價(jià)格要求：</span>面議</p><p><span>所在地：</span>上海市</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>山西華三負(fù)載均衡解決方案,負(fù)載均衡</p><p><span>***更新：</span>2020-07-05 06:21:25</p><p><span id="click" >瀏覽次數(shù)：0次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="iz2o2kb" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">上海雪萊信息科技有限公司</a></p><p><span>聯(lián)系人：</span>許經(jīng)理</p><p><span>郵箱: </span>846864328@qq.com</p><p><span>電話: </span>18621860861</p><p><span>傳真: </span>021_</p><p><span>網(wǎng)址: </span></p><p><span>手機(jī): </span>021-68072100</p><p><span>地址: </span>南匯新城鎮(zhèn)環(huán)湖西二路800號(hào)215室</p><p>[當(dāng)前離線] <a rel="nofollow"> [加為商友] </a><a rel="nofollow"> [發(fā)送信件] </a></p></div></div><div id="eoqhtpr" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="jdfho3b" class="box"><p><p> 1. 實(shí)現(xiàn)方式 </p> <p> 通過動(dòng)態(tài)路由協(xié)議在多個(gè)站點(diǎn)發(fā)布虛擬服務(wù)IP，山西華三負(fù)載均衡解決方案，利用網(wǎng)絡(luò)中的路由信息實(shí)現(xiàn)用戶的就近訪問和站點(diǎn)冗余。當(dāng)多個(gè)站點(diǎn)同時(shí)在線提供服務(wù)時(shí)，用戶訪問虛擬服務(wù)會(huì)根據(jù)路由信息來選擇出**近站點(diǎn)。當(dāng)某個(gè)站點(diǎn)出現(xiàn)故障時(shí)，OSPF路由會(huì)刪除到該站點(diǎn)的路由，因此用戶訪問虛擬服務(wù)時(shí)會(huì)將該站點(diǎn)排出選擇，待該站點(diǎn)恢復(fù)以后，OSPF路由則會(huì)重新將該站點(diǎn)的路由加入，山西華三負(fù)載均衡解決方案，山西華三負(fù)載均衡解決方案。路由通知的快慢取決于網(wǎng)絡(luò)的規(guī)模，一般情況下在1分鐘內(nèi)。 </p> <p> OSPF路由向DC1站點(diǎn)的深信服AD設(shè)備獲取該站點(diǎn)的動(dòng)態(tài)路由信息深信服AD根據(jù)不同負(fù)載均衡策略為不同運(yùn)營(yíng)商的用戶返回比較好的訪問地址，實(shí)現(xiàn)用戶入站流量的負(fù)載均衡。山西華三負(fù)載均衡解決方案</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="山西華三負(fù)載均衡解決方案,負(fù)載均衡" src="http://tyunfile.71360.com/UploadFile/heixiang4/637172002901630860/7755282.png"></div><p style="text-indent:25px">基于七層內(nèi)容的調(diào)度機(jī)制，使得管理員可以通過應(yīng)用層的內(nèi)容交換來分配服務(wù)器資源，以實(shí)現(xiàn)用戶請(qǐng)求調(diào)度的多元化和個(gè)性化，業(yè)務(wù)應(yīng)用的場(chǎng)景十分多方位。例如，基于URI、HOST、COOKIE、USER_AGENT等HTTP頭部?jī)?nèi)容的匹配策略來選擇服務(wù)器，或者通過對(duì)HTTP頭部進(jìn)行請(qǐng)求改寫和應(yīng)答改寫，執(zhí)行頁面跳轉(zhuǎn)和丟棄等操作，實(shí)現(xiàn)不同業(yè)務(wù)系統(tǒng)之間的交互聯(lián)動(dòng)。在L7服務(wù)器負(fù)載均衡的場(chǎng)景中，AD設(shè)備先與客戶端建立TCP連接，獲取到訪問請(qǐng)求的報(bào)文之后，再根據(jù)報(bào)文中所帶的應(yīng)用層內(nèi)容來選擇合適的服務(wù)器并與之建立TCP連接，此時(shí)AD設(shè)備所扮演的角色類似于一臺(tái)代理服務(wù)器。山西華三負(fù)載均衡解決方案以便鏈路負(fù)載均衡可以基于報(bào)文的源或目的IP地址查找IP地址庫(kù)。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="山西華三負(fù)載均衡解決方案,負(fù)載均衡" src="http://tyunfile.71360.com/UploadFile/heixiang4/637172002901464844/6884525.png"></div><p style="text-indent:25px">基于Cookie Rewrite的會(huì)話保持機(jī)制－也被稱為改寫式Cookie會(huì)話保持，常被用于認(rèn)證系統(tǒng)與應(yīng)用系統(tǒng)交互的業(yè)務(wù)場(chǎng)景中。用戶在首先次訪問應(yīng)用服務(wù)器的時(shí)候，會(huì)被重定向到認(rèn)證服務(wù)器進(jìn)行登錄認(rèn)證，AD設(shè)備在對(duì)多臺(tái)認(rèn)證服務(wù)器做負(fù)載均衡的同時(shí)，會(huì)在認(rèn)證返回信息的Cookie中寫入標(biāo)識(shí)信息，以便于區(qū)分不同的認(rèn)證服務(wù)器。應(yīng)用服務(wù)器隨后發(fā)起用戶驗(yàn)證的時(shí)候，AD設(shè)備先根據(jù)標(biāo)識(shí)信息辨認(rèn)出用戶先前登錄的同一臺(tái)認(rèn)證服務(wù)器，并從Cookie中刪除標(biāo)識(shí)信息后對(duì)其轉(zhuǎn)發(fā)驗(yàn)證請(qǐng)求，以實(shí)現(xiàn)會(huì)話保持的效果，</p><p> <br /> </p> <p> <br /> </p> <p> ? 負(fù)載均衡算法－深信服AD設(shè)備根據(jù)設(shè)定的策略機(jī)制將來自業(yè)務(wù)訪問的數(shù)據(jù)流量調(diào)度到不同的真實(shí)服務(wù)，例如對(duì)應(yīng)服務(wù)器負(fù)載均衡中的服務(wù)器、鏈路負(fù)載均衡中的鏈路、以及全局負(fù)載均衡中的站點(diǎn)，用以調(diào)度的策略機(jī)制被通稱為負(fù)載均衡算法。 </p> <p> ? 健康檢查－深信服AD設(shè)備對(duì)服務(wù)器以及鏈路進(jìn)行主動(dòng)探測(cè)，依據(jù)不同的健康性檢測(cè)方法，可以判斷服務(wù)器或鏈路的健康狀況是否能正常提供服務(wù)。 </p> <p> ? 就近性－在多鏈路負(fù)載均衡的場(chǎng)景中，深信服AD設(shè)備通過訪問端的地理位置，鏈路隸屬的運(yùn)營(yíng)商，以及實(shí)時(shí)探測(cè)的鏈路健康狀況等因素進(jìn)行分析比對(duì)，并根據(jù)判斷結(jié)果選擇比較好鏈路，保證數(shù)據(jù)流量經(jīng)由比較好鏈路來傳輸。深信服實(shí)現(xiàn)一個(gè)域名綁定多個(gè)運(yùn)營(yíng)商的公網(wǎng)地址。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="山西華三負(fù)載均衡解決方案,負(fù)載均衡" src="http://tyunfile.71360.com/UploadFile/heixiang4/637167061783281250/5317737.jpg"></div><p> 對(duì)于采用HTTP協(xié)議的應(yīng)用系統(tǒng)，深信服AD設(shè)備可以將眾多客戶端訪問請(qǐng)求捆綁處理，通過復(fù)用相對(duì)較少的服務(wù)器端TCP連接，將客戶端請(qǐng)求依次轉(zhuǎn)發(fā)到服務(wù)器，而不必通過一對(duì)一的方式將每一個(gè)客戶端的HTTP請(qǐng)求通過專門建立的TCP連接轉(zhuǎn)發(fā)到服務(wù)器。如此，在不需要改變?nèi)魏尉W(wǎng)絡(luò)構(gòu)造也不需要增加組織的硬件投資成本的情況下，減少服務(wù)器的工作負(fù)荷，從而提高服務(wù)器的處理能力。 </p> <p> 深信服AD設(shè)備保持先前用戶訪問時(shí)與后臺(tái)服務(wù)器之間建立的TCP連接，以供后續(xù)訪問使用，如此便明顯減少了后臺(tái)服務(wù)器需要處理的用戶端連接數(shù)(減少量比較高可以達(dá)到90%)，加快了客戶端與后臺(tái)服務(wù)器之間的連接處理速度，提高應(yīng)用系統(tǒng)的處理能力，節(jié)省組織的硬件投資成本。深信服AD設(shè)備對(duì)外發(fā)布的服務(wù)被稱為虛擬服務(wù)。山西華三負(fù)載均衡解決方案</p><p style="text-indent:25px">深信服AD產(chǎn)品作為專業(yè)的應(yīng)用交付設(shè)備。山西華三負(fù)載均衡解決方案</p><p> 1. 實(shí)現(xiàn)方式 </p> <p> 利用智能DNS解析技術(shù)，以獨(dú)一的域名的方式為所有發(fā)布相同服務(wù)的數(shù)據(jù)中心提供統(tǒng)一的入口，根據(jù)管理人員預(yù)先設(shè)定的負(fù)載策略將用戶的訪問請(qǐng)求分配到不同數(shù)據(jù)中心之上，從而實(shí)現(xiàn)多站點(diǎn)的負(fù)載均衡調(diào)度。 </p> <p> 當(dāng)用戶通過域名方式進(jìn)行訪問時(shí)，可以根據(jù)用戶使用的Local DNS位置進(jìn)行就近性計(jì)算，將比較好站點(diǎn)的IP地址解析給用戶。同時(shí)結(jié)合AD設(shè)備所配備的全球IP地址庫(kù)，進(jìn)一步提高用戶請(qǐng)求就近分配的準(zhǔn)確性，從而徹底解決用戶跨國(guó)、跨運(yùn)營(yíng)訪問速度慢的問題。山西華三負(fù)載均衡解決方案</p><p style="text-indent:25px">上海雪萊信息科技有限公司坐落南匯新城鎮(zhèn)環(huán)湖西二路800號(hào)215室，交通便利，環(huán)境優(yōu)美，是一家貿(mào)易型企業(yè)。公司是一家有限責(zé)任公司企業(yè)，以誠(chéng)信務(wù)實(shí)的創(chuàng)業(yè)精神、質(zhì)量高效的管理團(tuán)隊(duì)、精悍的職工隊(duì)伍，努力為廣大用戶提供***的產(chǎn)品。公司業(yè)務(wù)涵蓋[ "上網(wǎng)行為管理", "下一代防火墻", "VPN", "華為" ]，價(jià)格合理，品質(zhì)有保證，深受廣大客戶的歡迎。雪萊科技自成立以來，一直堅(jiān)持走正規(guī)化、專業(yè)化路線，得到了廣大客戶及社會(huì)各界的普遍認(rèn)可與大力支持。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/499377.html</p></div></div></div></div></div><div id="dszlxul" class="page-right twoColRt"><div id="hb7wf27" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="iq8acyk" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/814588.html"><div><img src="http://tyunfile.71360.com/UpLoadFile/2019/11/1/14/637082168864691056_lgpj_5374157.jpg" alt="福建ZF配件哪家強(qiáng) 信息推薦自業(yè)物資供應(yīng)" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>福建ZF配件哪家強(qiáng) 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