{"id":74,"date":"2008-02-17T20:08:28","date_gmt":"2008-02-17T20:08:28","guid":{"rendered":"\/blogs\/news\/archive\/2008\/02\/17\/how-network-load-balancing-algorithm-works-internally.aspx"},"modified":"2008-02-17T20:08:28","modified_gmt":"2008-02-17T20:08:28","slug":"how-network-load-balancing-algorithm-works-internally","status":"publish","type":"post","link":"https:\/\/plexuk.co.uk\/?p=74","title":{"rendered":"How Network Load Balancing Algorithm works internally"},"content":{"rendered":"<p>This article explains how NLB algorithm works internally from a technical point of view. This article only applies to Windows NT, Windows 2000 Server, Windows Server 2003 and Windows Server 2008.  <\/p>\n<p>General rule for a NLB Cluster which applies to each host in the cluster:  <\/p>\n<p>1. All port rules (range) defined in a host cluster must be unique across the cluster.  <\/p>\n<p>2. Host priority (Default Host) must be unique across the cluster.  <\/p>\n<p>3. Cluster mode must be unique across the cluster: either Unicast or Multicast.  <\/p>\n<p>A cluster node maintains a statistical mapping of port rules with associated Virtual IP of the cluster. I will give an port rule example and then explain how it works in cluster when an incoming TCP\/IP packet arrives to cluster hosts. I have configured the following port rule at one of the cluster host:  <\/p>\n<p>Full Article &#8211; <a title=\"http:\/\/msmvps.com\/blogs\/systmprog\/archive\/2008\/02\/14\/how-network-load-balancing-algorithm-works-internally.aspx\" href=\"http:\/\/msmvps.com\/blogs\/systmprog\/archive\/2008\/02\/14\/how-network-load-balancing-algorithm-works-internally.aspx\">http:\/\/msmvps.com\/blogs\/systmprog\/archive\/2008\/02\/14\/how-network-load-balancing-algorithm-works-internally.aspx<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>This article explains how NLB algorithm works internally from a technical point of view. This article only applies to Windows NT, Windows 2000 Server, Windows Server 2003 and Windows Server 2008. General rule for a NLB Cluster which applies to each host in the cluster: 1. All port rules (range) defined in a host cluster [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[338],"class_list":["post-74","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-uncategorized"],"_links":{"self":[{"href":"https:\/\/plexuk.co.uk\/index.php?rest_route=\/wp\/v2\/posts\/74","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/plexuk.co.uk\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/plexuk.co.uk\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/plexuk.co.uk\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/plexuk.co.uk\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=74"}],"version-history":[{"count":0,"href":"https:\/\/plexuk.co.uk\/index.php?rest_route=\/wp\/v2\/posts\/74\/revisions"}],"wp:attachment":[{"href":"https:\/\/plexuk.co.uk\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=74"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/plexuk.co.uk\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=74"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/plexuk.co.uk\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=74"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}