{"id":9,"date":"2017-09-13T10:51:35","date_gmt":"2017-09-13T08:51:35","guid":{"rendered":"http:\/\/www.quisted.net\/?p=9"},"modified":"2017-09-13T10:51:35","modified_gmt":"2017-09-13T08:51:35","slug":"ospf-network-types","status":"publish","type":"post","link":"https:\/\/www.quisted.net\/index.php\/2017\/09\/13\/ospf-network-types\/","title":{"rendered":"OSPF Network Types"},"content":{"rendered":"

The network type is determined by layer-2 encapsulation on the interface:<\/p>\n

\"\"<\/a><\/p>\n

<\/p>\n

sh ip ospf interface\n FastEthernet0\/0 is up, line protocol is up\n Internet Address 10.10.10.10\/24, Area 0\n Process ID 1, Router ID 10.10.10.10, Network Type POINT_TO_POINT<\/strong>, Cost: 10\n Transmit Delay is 1 sec, State POINT_TO_POINT,\n Timer intervals configured, Hello 10, Dead 40, Wait 40, Retransmit 5\n oob-resync timeout 40\n Hello due in 00:00:00\n Supports Link-local Signaling (LLS)\n Index 1\/1, flood queue length 0\n Next 0x0(0)\/0x0(0)\n Last flood scan length is 0, maximum is 0\n Last flood scan time is 0 msec, maximum is 0 msec\n Neighbor Count is 0, Adjacent neighbor count is 0\n Suppress hello for 0 neighbor(s)<\/pre>\n
 <\/p>\n
Network type Broadcast<\/strong>:<\/p>\n
    \n
  • Default on LAN interfaces<\/li>\n
  • Discovers neighbors automatically<\/li>\n
  • Uses DR\/BDR<\/li>\n
  • Intervals 10\/40<\/li>\n
  • (config-if)#ip ospf network broadcast<\/em><\/li>\n<\/ul>\n
     <\/p>\n
    Network type Non-Broadcast<\/strong><\/p>\n
      \n
    • Default on FrameRelay physical<\/strong> and multipoint<\/strong> interfaces<\/li>\n
    • Does NOT<\/strong> discover neighbors automatically<\/li>\n
    • Intervals 30\/120<\/li>\n
    • Static neighbor configuration<\/li>\n
    • (config-if)#neighbor 10.10.10.10 [priority priority] (ospf command)<\/em><\/li>\n<\/ul>\n
       <\/p>\n
      Frame-Relay Network Type:<\/p>\n
        \n
      • Physical or Multipoint interfaces can be used to connect to the FrameRelay cloud which results in different network types<\/li>\n<\/ul>\n
         <\/p>\n
        Network type Point-to-Point<\/strong>:<\/p>\n
          \n
        • Default on point-to-point (hdli\/ppp) interfaces<\/li>\n
        • Discovers neighbors dynamically<\/li>\n
        • does NOT use DR\/BDR<\/li>\n
        • Intervals 10\/40<\/li>\n
        • (config-if)#ip ospf network point-to-point<\/em><\/li>\n<\/ul>\n
           <\/p>\n
          Network type Point-to-Multipoint<\/strong>:<\/p>\n
            \n
          • Not the default on any interface<\/li>\n
          • Discovers neighbors dynamically<\/li>\n
          • does NOT elect DR\/BDR<\/li>\n
          • Intervals 30\/120<\/li>\n
          • (config-if)#ip ospf network point-to-multipoint<\/em><\/li>\n<\/ul>\n
             <\/p>\n
            Network type Point-to-Multipoint Non-Broadcast<\/strong>:<\/p>\n
              \n
            • Not the default on any interface<\/li>\n
            • Does NOT<\/strong> discover neighbors automatically<\/li>\n
            • does NOT elect DR\/BDR<\/li>\n
            • Cost to reach neighbour<\/li>\n
            • (config-if)#ip ospf network point-to-multipoint non-broadcast <\/em><\/li>\n
            • <\/li>\n
            • Network type point-* doesn’t use DR\/BDR<\/li>\n
            • Non-Broadcast doesn’t do dynamic neighbor discovery<\/li>\n
            • Only Brocastcast and Point-to-Point use fast timers 10\/40<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"
              The network type is determined by layer-2 encapsulation on the interface:<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"ngg_post_thumbnail":0,"footnotes":""},"categories":[14,8],"tags":[],"class_list":["post-9","post","type-post","status-publish","format-standard","hentry","category-ospf","category-route"],"_links":{"self":[{"href":"https:\/\/www.quisted.net\/index.php\/wp-json\/wp\/v2\/posts\/9","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.quisted.net\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.quisted.net\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.quisted.net\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.quisted.net\/index.php\/wp-json\/wp\/v2\/comments?post=9"}],"version-history":[{"count":0,"href":"https:\/\/www.quisted.net\/index.php\/wp-json\/wp\/v2\/posts\/9\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.quisted.net\/index.php\/wp-json\/wp\/v2\/media?parent=9"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.quisted.net\/index.php\/wp-json\/wp\/v2\/categories?post=9"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.quisted.net\/index.php\/wp-json\/wp\/v2\/tags?post=9"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}