{"id":4274,"date":"2021-07-19T14:50:24","date_gmt":"2021-07-19T06:50:24","guid":{"rendered":"https:\/\/cciedump.spoto.net\/blog\/?p=4274"},"modified":"2024-11-05T14:25:08","modified_gmt":"2024-11-05T06:25:08","slug":"what-are-the-key-ospf-areas-and-different-lsa-types-in-networking","status":"publish","type":"post","link":"https:\/\/cciedump.spoto.net\/blog\/what-are-the-key-ospf-areas-and-different-lsa-types-in-networking_4274.html","title":{"rendered":"What are the Key OSPF Areas and Different LSA Types in Networking?"},"content":{"rendered":"<p><strong><span data-preserver-spaces=\"true\">The Short Version:<\/span><\/strong><span data-preserver-spaces=\"true\">&nbsp;Open shortest path first (OSPF) zones allow your networks and routers to determine the quickest and most efficient route from one site to another. Different link state advertisement (LSA) kinds provide information about your network&#8217;s and routers&#8217; design.<\/span><\/p>\n<p><span data-preserver-spaces=\"true\">The OSPF and LSA protocols collaborate to ensure that network traffic is always delivered to its intended destination. Large routing tables and network segments store routing tables efficiently, especially those that change often. When numerous routers are connected to a network, the technology limits bandwidth utilization to a minimum.<\/span><\/p>\n<p><span data-preserver-spaces=\"true\">We believe that <em><strong><a href=\"https:\/\/cciedump.spoto.net\/blog\/ospf-vs-bgp-what-are-differences-and-which-to-use_4245.html\">OSPF Areas<\/a> <\/strong><\/em>and LSA Types mix is one of the most perplexing aspects of learning about OSPF, so we&#8217;re here to help.<\/span><\/p>\n\n<table id=\"tablepress-13\" class=\"tablepress tablepress-id-13\">\n<thead>\n<tr class=\"row-1 odd\">\n\t<th class=\"column-1\">Categories<\/th><th class=\"column-2\">Exam Code<\/th><th class=\"column-3\">Pass Exam Dumps<\/th>\n<\/tr>\n<\/thead>\n<tbody class=\"row-hover\">\n<tr class=\"row-2 even\">\n\t<td class=\"column-1\">CCNA Dump<\/td><td class=\"column-2\">200-301\/200-901\/200-201<\/td><td class=\"column-3\"><a rel=\"nofollow\" href=\"https:\/\/tb.53kf.com\/code\/client\/10172212\/1?custom_channel=ccieblogform\"><img 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odd\">\n\t<td class=\"column-1\">PMI Dump<\/td><td class=\"column-2\">PMP\/RMP\/PgMP\/ACP\/CAPM<\/td><td class=\"column-3\"><a rel=\"nofollow\" href=\"https:\/\/tb.53kf.com\/code\/client\/10172212\/1?custom_channel=ccieblogform\"><img src=\"https:\/\/cciedump.spoto.net\/blog\/wp-content\/uploads\/2020\/08\/get-now-1-1.jpg\" alt=\"PMP\/RMP\/PgMP\/ACP\/CAPM\"><\/a><\/td>\n<\/tr>\n<tr class=\"row-6 even\">\n\t<td class=\"column-1\">ISACA Dump<\/td><td class=\"column-2\">CISA\/CISM\/CRISC\/CGEIT<\/td><td class=\"column-3\"><a rel=\"nofollow\" href=\"https:\/\/tb.53kf.com\/code\/client\/10172212\/1?custom_channel=ccieblogform\"><img src=\"https:\/\/cciedump.spoto.net\/blog\/wp-content\/uploads\/2020\/08\/get-now-1-1.jpg\" alt=\"CISA\/CISM\/CRISC\/CGEIT\"><\/a><\/td>\n<\/tr>\n<tr class=\"row-7 odd\">\n\t<td class=\"column-1\">Other IT Dump<\/td><td class=\"column-2\">AWS\/Microsoft\/Aruba\/Comptia\/F5\/Juniper<\/td><td class=\"column-3\"><a rel=\"nofollow\" href=\"https:\/\/tb.53kf.com\/code\/client\/10172212\/1?custom_channel=ccieblogform\"><img src=\"https:\/\/cciedump.spoto.net\/blog\/wp-content\/uploads\/2020\/08\/get-now-1-1.jpg\" alt=\"AWS\/Microsoft\/Aruba\/Comptia\/F5\/Juniper\"><\/a><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<!-- #tablepress-13 from cache -->\n<p><a href=\"https:\/\/tb.53kf.com\/code\/client\/10172212\/1?custom_channel=chenjia\" rel=\"nofollow\"><img loading=\"lazy\" class=\"alignnone wp-image-2740\" src=\"https:\/\/cciedump.spoto.net\/blog\/wp-content\/uploads\/2020\/09\/\u6309\u94ae-get-100-pass-dumps.gif\" alt=\"get 100% pass spoto dump\" width=\"451\" height=\"131\"><\/a><\/p>\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_17 counter-hierarchy counter-decimal ez-toc-light-blue\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" style=\"display: none;\"><i class=\"ez-toc-glyphicon ez-toc-icon-toggle\"><\/i><\/a><\/span><\/div>\n<nav><ul class=\"ez-toc-list ez-toc-list-level-1\"><li class=\"ez-toc-page-1 ez-toc-heading-level-2\"><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/cciedump.spoto.net\/blog\/what-are-the-key-ospf-areas-and-different-lsa-types-in-networking_4274.html\/#What_exactly_are_OSPF_Areas\" title=\"What exactly are OSPF Areas?\">What exactly are OSPF Areas?<\/a><\/li><li class=\"ez-toc-page-1 ez-toc-heading-level-2\"><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/cciedump.spoto.net\/blog\/what-are-the-key-ospf-areas-and-different-lsa-types-in-networking_4274.html\/#What_exactly_is_the_Backbone_Area\" title=\"What exactly is the Backbone Area?\">What exactly is the Backbone Area?<\/a><\/li><li class=\"ez-toc-page-1 ez-toc-heading-level-2\"><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/cciedump.spoto.net\/blog\/what-are-the-key-ospf-areas-and-different-lsa-types-in-networking_4274.html\/#What_exactly_are_Standard_Areas\" title=\"What exactly are Standard Areas?\">What exactly are Standard Areas?<\/a><\/li><li class=\"ez-toc-page-1 ez-toc-heading-level-2\"><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/cciedump.spoto.net\/blog\/what-are-the-key-ospf-areas-and-different-lsa-types-in-networking_4274.html\/#What_exactly_are_Stub_Areas\" title=\"What exactly are Stub Areas?\">What exactly are Stub Areas?<\/a><\/li><li class=\"ez-toc-page-1 ez-toc-heading-level-2\"><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/cciedump.spoto.net\/blog\/what-are-the-key-ospf-areas-and-different-lsa-types-in-networking_4274.html\/#What_exactly_are_Stubby_Areas\" title=\"What exactly are Stubby Areas?\">What exactly are Stubby Areas?<\/a><\/li><li class=\"ez-toc-page-1 ez-toc-heading-level-2\"><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/cciedump.spoto.net\/blog\/what-are-the-key-ospf-areas-and-different-lsa-types-in-networking_4274.html\/#What_are_the_Not-So-Stubby_Zones\" title=\"What are the Not-So-Stubby Zones?\">What are the Not-So-Stubby Zones?<\/a><\/li><li class=\"ez-toc-page-1 ez-toc-heading-level-2\"><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/cciedump.spoto.net\/blog\/what-are-the-key-ospf-areas-and-different-lsa-types-in-networking_4274.html\/#What_exactly_is_an_LSA_Link_State_Advertisement\" title=\"What exactly is an LSA (Link State Advertisement)?\">What exactly is an LSA (Link State Advertisement)?<\/a><ul class=\"ez-toc-list-level-3\"><li class=\"ez-toc-heading-level-3\"><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/cciedump.spoto.net\/blog\/what-are-the-key-ospf-areas-and-different-lsa-types-in-networking_4274.html\/#Router_LSA_is_the_first_type_of_LSA\" title=\"Router LSA is the first type of LSA.\">Router LSA is the first type of LSA.<\/a><\/li><li class=\"ez-toc-page-1 ez-toc-heading-level-3\"><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/cciedump.spoto.net\/blog\/what-are-the-key-ospf-areas-and-different-lsa-types-in-networking_4274.html\/#Type_2_LSA_Network_LSA_DR_Generated\" title=\"Type 2 LSA: Network LSA (DR Generated)\">Type 2 LSA: Network LSA (DR Generated)<\/a><\/li><li class=\"ez-toc-page-1 ez-toc-heading-level-3\"><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/cciedump.spoto.net\/blog\/what-are-the-key-ospf-areas-and-different-lsa-types-in-networking_4274.html\/#LSA_Type_3_LSA_Summary_ABR_Summary_Route\" title=\"LSA Type 3: LSA Summary (ABR Summary Route)\">LSA Type 3: LSA Summary (ABR Summary Route)<\/a><\/li><li class=\"ez-toc-page-1 ez-toc-heading-level-3\"><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/cciedump.spoto.net\/blog\/what-are-the-key-ospf-areas-and-different-lsa-types-in-networking_4274.html\/#LSA_Type_4_LSA_Summary_ASBR_Location\" title=\"LSA Type 4: LSA Summary (ASBR Location)\">LSA Type 4: LSA Summary (ASBR Location)<\/a><\/li><li class=\"ez-toc-page-1 ez-toc-heading-level-3\"><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/cciedump.spoto.net\/blog\/what-are-the-key-ospf-areas-and-different-lsa-types-in-networking_4274.html\/#Type_5_LSA_External_LSA_ASBR_Summary_Route\" title=\"Type 5 LSA: External LSA (ASBR Summary Route)\">Type 5 LSA: External LSA (ASBR Summary Route)<\/a><\/li><\/ul><\/li><li class=\"ez-toc-page-1 ez-toc-heading-level-2\"><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/cciedump.spoto.net\/blog\/what-are-the-key-ospf-areas-and-different-lsa-types-in-networking_4274.html\/#LSA_and_OSPF_Area_Types\" title=\"LSA and OSPF Area Types\">LSA and OSPF Area Types<\/a><\/li><li class=\"ez-toc-page-1 ez-toc-heading-level-2\"><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/cciedump.spoto.net\/blog\/what-are-the-key-ospf-areas-and-different-lsa-types-in-networking_4274.html\/#SPOTO_OSPF_Courses\" title=\"SPOTO OSPF Courses&nbsp;\">SPOTO OSPF Courses&nbsp;<\/a><\/li><li class=\"ez-toc-page-1 ez-toc-heading-level-2\"><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/cciedump.spoto.net\/blog\/what-are-the-key-ospf-areas-and-different-lsa-types-in-networking_4274.html\/#Latest_passing_report-100_pass_guarantee\" title=\"Latest passing report-100% pass guarantee\">Latest passing report-100% pass guarantee<\/a><\/li><li class=\"ez-toc-page-1 ez-toc-heading-level-2\"><a class=\"ez-toc-link ez-toc-heading-16\" href=\"https:\/\/cciedump.spoto.net\/blog\/what-are-the-key-ospf-areas-and-different-lsa-types-in-networking_4274.html\/#Related_Cisco_exam_study_materials\" title=\"Related Cisco exam study materials&nbsp;\">Related Cisco exam study materials&nbsp;<\/a><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"What_exactly_are_OSPF_Areas\"><\/span><strong>What exactly are OSPF Areas?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span data-preserver-spaces=\"true\">You&#8217;ve probably heard about RIP if you&#8217;ve studied fundamental networking and router concepts (Routing Information Protocol). Every few seconds, RIP delivers routing tables to surrounding routers. Keeping track of routing tables in this manner consumes a lot of bandwidth and produces unnecessary congestion.<\/span><\/p>\n<p><span data-preserver-spaces=\"true\">Instead, OSPF splits networks into areas, which are sub-domains. An area is a logical grouping of <em><strong><a href=\"https:\/\/cciedump.spoto.net\/blog\/ospf-vs-bgp-what-are-differences-and-which-to-use_4245.html\">OSPF networks<\/a><\/strong><\/em>, routers, and links that share the same area ID. A router within an area only needs to maintain a topological database for the area to which it is assigned, which decreases the size of the database. Rather than knowing the topology of a complete network, it only has to know its own, which allows the routers in the region to run considerably more efficiently.<\/span><\/p>\n<p><span data-preserver-spaces=\"true\">As a result, the main advantage of constructing zones is that it reduces the number of routes to propagate \u2014 by filtering and summarizing routes.<\/span><\/p>\n<h5 class=\"card-title\"><a title=\"OSPF vs BGP: What are differences and which to use?\" href=\"https:\/\/cciedump.spoto.net\/blog\/ospf-vs-bgp-what-are-differences-and-which-to-use_4245.html\">OSPF vs BGP: What are differences and which to use?<\/a><\/h5>\n<h2><span class=\"ez-toc-section\" id=\"What_exactly_is_the_Backbone_Area\"><\/span><strong>What exactly is the Backbone Area?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span data-preserver-spaces=\"true\">The initial area to build in an OSPF configuration is &#8220;Area Zero&#8221; \u2014 sometimes known as the &#8220;Backbone Area.&#8221; Some companies never expand beyond this one location. As a company grows, it often adds more routers, which causes router tables to become unruly with too many routes and updates. All of this results in a waste of processing cycles. As a result, you can divide your network into several areas while still contributing to Area Zero to keep things running smoothly.<\/span><\/p>\n<h2><span class=\"ez-toc-section\" id=\"What_exactly_are_Standard_Areas\"><\/span><strong>What exactly are Standard Areas?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span data-preserver-spaces=\"true\">Standard Areas are used to improve the efficiency of configurations. You could wish to divide your routers and do a summary between the locations you&#8217;re constructing. This allows the routers to interact with one another and with the rest of your network.<\/span><\/p>\n<h2><span class=\"ez-toc-section\" id=\"What_exactly_are_Stub_Areas\"><\/span><strong>What exactly are Stub Areas?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span data-preserver-spaces=\"true\">Stub Areas are stubby because the information they may acquire is limited. Assume you have RIP routes, EIGRP routes, or even BGP routes in the cloud. You select whether to disseminate or include those routes into your system. As a result, they are considered external routes.<\/span><\/p>\n<p><span data-preserver-spaces=\"true\">External routes can be blocked and replaced with a default route via stub areas. As a result, all routers in that Stub Area receive a default route.<\/span><\/p>\n<h2><span class=\"ez-toc-section\" id=\"What_exactly_are_Stubby_Areas\"><\/span><strong>What exactly are Stubby Areas?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span data-preserver-spaces=\"true\">Cisco pushed Stub Areas to the next level, declaring, &#8220;We&#8217;re going to develop a completely Stubby Area.&#8221; A Stubby Area filters external and other system routes and replaces them with a default route. This improves the efficiency of the routing table within that area.<\/span><\/p>\n<h2><span class=\"ez-toc-section\" id=\"What_are_the_Not-So-Stubby_Zones\"><\/span><strong>What are the Not-So-Stubby Zones?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span data-preserver-spaces=\"true\">We have Stubby and Stubby Areas. Therefore it stands to reason that we should have Not-So-Stubby Areas, right? What about areas that aren&#8217;t quite as stubby? A Not-so-Stubby Area, or NSSA as it is often known, frequently appears out of nowhere.<\/span><\/p>\n<p><span data-preserver-spaces=\"true\">Assume Area One represents China, and they have a partnership with another corporation that runs RIP. You must violate the stub&#8217;s rules to send these routes into your system. However, the stub must be active for your routing tables to remain efficient. As a result, you&#8217;ll have to bend the rules. That&#8217;s what we mean by a Not-so-Stubby Zone. A NSSA conceals those pathways. They appear as external routes once they&#8217;ve passed through the stubby area.<\/span><\/p>\n<h2><span class=\"ez-toc-section\" id=\"What_exactly_is_an_LSA_Link_State_Advertisement\"><\/span><strong>What exactly is an LSA (Link State Advertisement)?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span data-preserver-spaces=\"true\">Understanding all area kinds greatly simplifies the understanding of Link State Advertisements. In OSPF, an LSA is a router&#8217;s method of transmitting the information. LSAs are classified into several categories.<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Router_LSA_is_the_first_type_of_LSA\"><\/span><strong>Router LSA is the first type of LSA.<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span data-preserver-spaces=\"true\">Type 1 is the basic LSA that is generated when you add a new router to the network. This new router employs a Type 1 LSA to notify the network that it has become a part of the architecture.<\/span><\/p>\n<p><span data-preserver-spaces=\"true\">Assume you have a router that is connected to two networks and wants to convey this information. Because it is a regular router, it will generate a Type 1 LSA. The router will then instruct the networks to incorporate it into their Link State databases.<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Type_2_LSA_Network_LSA_DR_Generated\"><\/span><strong>Type 2 LSA: Network LSA (DR Generated)<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span data-preserver-spaces=\"true\">When you put many routers into one switch, you don&#8217;t want them all to develop neighbor associations. When something happens, it quickly becomes a jumbled tangle of updates. The specified router receives a Type 2 LSA. As a result, one router becomes the designated router, and the Type 2 LSA informs all networks of the designated router&#8217;s identity.<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"LSA_Type_3_LSA_Summary_ABR_Summary_Route\"><\/span><strong>LSA Type 3: LSA Summary (ABR Summary Route)<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span data-preserver-spaces=\"true\">When a router is located between OSPF areas, Type 3 LSAs are used. As router information transfers between areas, it summarizes routes. For example, suppose you have Router One connected to the 10.1 networks, 10.1.1.0\/24. It transforms from a Type 1 LSA to a Type 3 LSA as it advances from Area Two to Area Zero.<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"LSA_Type_4_LSA_Summary_ASBR_Location\"><\/span><strong>LSA Type 4: LSA Summary (ASBR Location)<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span data-preserver-spaces=\"true\">An Autonomous System Boundary Router is located in Type 4 LSA (ASBR). These routers can exit your system, allowing inside routers to determine the optimum route for data transfer. Area Border Routers (ABRs) can, on the other hand, summarize between the regions.<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Type_5_LSA_External_LSA_ASBR_Summary_Route\"><\/span><strong>Type 5 LSA: External LSA (ASBR Summary Route)<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span data-preserver-spaces=\"true\">The external LSA is the fifth form of LSA. This is for routes that originate outside of a system. Type Five LSAs are opposed to Type Four LSAs. Type Four specifies the location of the ASBR, while Type Five specifies the routes from the ASBR.<\/span><\/p>\n<h2><span class=\"ez-toc-section\" id=\"LSA_and_OSPF_Area_Types\"><\/span><strong>LSA and OSPF Area Types<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span data-preserver-spaces=\"true\">Let us now consider how these two concepts interact with one another. Stubby Areas block type 3, Type 4, and Type 5 LSAs. Type 5 LSAs are not permitted in Stub Areas. They are shrinking their routing tables as a result of this.<\/span><\/p>\n<p><span data-preserver-spaces=\"true\">Not-So-Stubby Areas make use of an LSA that isn&#8217;t even on this list. They fly with a Type 7 LSA. Consider a Type 7 LSA to be similar to one of those theatrical masks. They install masks in front of all the Type 5 LSAs coming in to disguise them so the Stub Area doesn&#8217;t block them. However, once they pass through that mechanism, the masks are gone.<\/span><\/p>\n<h2><span class=\"ez-toc-section\" id=\"SPOTO_OSPF_Courses\"><\/span><strong>SPOTO OSPF Courses&nbsp;<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span data-preserver-spaces=\"true\">Check out the <a href=\"https:\/\/cciedump.spoto.net\/blog\/release-now-achieve-cisco-certification-with-spoto-training-online_3790.html\">SPOTO Cisco CCNA training course<\/a> to learn more about OSPF areas and LSA kinds. SPOTO, regardless of vendor, can help you learn more about this networking fundamental.<\/span><\/p>\n<p><img loading=\"lazy\" class=\"alignnone\" src=\"https:\/\/cciedump.spoto.net\/blog\/wp-content\/uploads\/2021\/06\/1125.png\" alt=\"CCNA course training outline\" width=\"424\" height=\"2028\"><\/p>\n<p><span data-preserver-spaces=\"true\">Also, if you want to get CCNA certification on the first try, you should enroll in the SPOTO Cisco training course to find more practical knowledge on OSPF or get <a href=\"https:\/\/cciedump.spoto.net\/ccna-2020.php\">CCNA exam dumps<\/a> to pass the <a href=\"https:\/\/cciedump.spoto.net\/ccna-2020.php\">CCNA exam<\/a> on the first try!<\/span><\/p>\n<p><a href=\"https:\/\/tb.53kf.com\/code\/client\/10172212\/1?custom_channel=chenjia\" rel=\"nofollow\"><img loading=\"lazy\" class=\"alignnone wp-image-2740\" src=\"https:\/\/cciedump.spoto.net\/blog\/wp-content\/uploads\/2020\/09\/\u6309\u94ae-get-100-pass-dumps.gif\" alt=\"get 100% pass spoto dump\" width=\"451\" height=\"131\"><\/a><\/p>\n<p><a href=\"https:\/\/cciedump.spoto.net\/cisco-ebook-download\/\"><strong>Download Free Cisco CCNA practice tests<\/strong><\/a><\/p>\n<div role=\"form\" class=\"wpcf7\" id=\"wpcf7-f4193-o1\" lang=\"en-US\" dir=\"ltr\">\n<div class=\"screen-reader-response\"><p role=\"status\" aria-live=\"polite\" aria-atomic=\"true\"><\/p> <ul><\/ul><\/div>\n<form action=\"\/blog\/wp-json\/wp\/v2\/posts\/4274#wpcf7-f4193-o1\" method=\"post\" class=\"wpcf7-form init\" novalidate=\"novalidate\" data-status=\"init\">\n<div style=\"display: none;\">\n<input type=\"hidden\" name=\"_wpcf7\" value=\"4193\" \/>\n<input type=\"hidden\" name=\"_wpcf7_version\" value=\"5.4.2\" \/>\n<input type=\"hidden\" name=\"_wpcf7_locale\" value=\"en_US\" \/>\n<input type=\"hidden\" name=\"_wpcf7_unit_tag\" value=\"wpcf7-f4193-o1\" \/>\n<input type=\"hidden\" name=\"_wpcf7_container_post\" value=\"0\" \/>\n<input type=\"hidden\" name=\"_wpcf7_posted_data_hash\" value=\"\" \/>\n<\/div>\n<p><label><b><font size=\"5\">100% FREE Cisco\u00ae Certification Pack<\/font><\/b><br \/>\n<font size = 2>Let us send our Free Cisco Pack. 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Different link state advertisement (LSA) kinds provide information about your network&#8217;s and routers&#8217; design. The OSPF and LSA protocols collaborate to ensure that network traffic is always delivered to&#8230; &raquo; <a class=\"read-more-link\" href=\"https:\/\/cciedump.spoto.net\/blog\/what-are-the-key-ospf-areas-and-different-lsa-types-in-networking_4274.html\">read more<\/a><\/p>\n","protected":false},"author":1,"featured_media":4285,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[3,29],"tags":[971,158,92,970],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v18.0 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>What are the Key OSPF Areas and Different LSA Types in Networking? - SPOTO Official Blog<\/title>\n<meta name=\"description\" content=\"Learn about OSPF areas and different LSA types in networking. 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