Point-to-multipoint is treated as a collection of point-to-point links and thus no DR\/BDR is required.<\/p>\n
Point-to-Point is a single link and no election is needed.<\/p>\n
Broadcast: OSPF routers on broadcast networks will elect a DR and a BDR (since it is multiaccess) – OSPF packets are multicast.<\/p>\n
NBMA: Routers will elect DR and BDR (since it is multiaccess), but since it is a non-broadcast, routers will have to communicate via unicast rather than multicast.<\/p>\n","protected":false},"excerpt":{"rendered":"
Point-to-multipoint is treated as a collection of point-to-point links and thus no DR\/BDR is required. Point-to-Point is a single link and no election is needed. Broadcast: OSPF routers on broadcast networks will elect a DR and a BDR (since it is multiaccess) – OSPF packets are multicast. NBMA: Routers will elect DR and BDR (since […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","jetpack_publicize_message":"","jetpack_is_tweetstorm":false,"jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","enabled":false}}},"categories":[1],"tags":[178,15],"jetpack_publicize_connections":[],"aioseo_notices":[],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p6VLMf-qe","jetpack-related-posts":[{"id":322,"url":"http:\/\/www.mtin.net\/blog\/helpful-ospf-times\/","url_meta":{"origin":1626,"position":0},"title":"Helpful OSPF times","author":"j2sw","date":"August 25, 2015","format":false,"excerpt":"OSPF can be a mystery to some. \u00a0Understanding the default timeouts can be helpful in troubleshooting. \u00a0Some vendors change these times so it is very important to realize this stuff if you start mixing vendors in your OSPF domains. 10 Seconds Default OSPF hello timer on broadcast and point-to-point links\u2026","rel":"","context":"In \"ospf\"","block_context":{"text":"ospf","link":"http:\/\/www.mtin.net\/blog\/tag\/ospf\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":132,"url":"http:\/\/www.mtin.net\/blog\/mtin-services\/","url_meta":{"origin":1626,"position":1},"title":"MTIN Services","author":"j2sw","date":"August 26, 2014","format":false,"excerpt":"WISP and Wireline\/Fiber Design and Operation MPLS Design and Implementation Multicast Routing IGMP, PIM eBGP\/iBGP design\/implementation Cisco Routers 2800, 3600, 7200, 7600, ASR, ISR Cisco Switches 2950, 3550, 3560, 3750, 6500 Switching (Layer 2) STP, RSTP, EOIP, MSTP, VLAN \u2013 dot1q and q-in-q Routing (layer 3) OSPF, BGP, MPLS, L2VPN\u2026","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":309,"url":"http:\/\/www.mtin.net\/blog\/osfp-and-areas\/","url_meta":{"origin":1626,"position":2},"title":"OSFP and areas","author":"j2sw","date":"June 13, 2015","format":false,"excerpt":"OSPF areas are one of the more common topics I am asked about as networks grow. \u00a0 Before we dig into this, we need to understand the reasons why OSPF areas were created in the first place. \u00a0Next, we will go into how to apply areas to modern network designs.\u2026","rel":"","context":"In \"areas\"","block_context":{"text":"areas","link":"http:\/\/www.mtin.net\/blog\/tag\/areas\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":2143,"url":"http:\/\/www.mtin.net\/blog\/lab-network\/","url_meta":{"origin":1626,"position":3},"title":"Lab Network","author":"j2sw","date":"March 11, 2018","format":false,"excerpt":"I am starting an ongoing series involving a semi-static set of devices.\u00a0 These will involve different tutorials on things such as OSPF, cambium configuration, vlans, and other topics.\u00a0 Below is the general topology I will use for this lab network.\u00a0 As things progress I will be able to swap different\u00a0manufacturers\u2026","rel":"","context":"In "BGP"","block_context":{"text":"BGP","link":"http:\/\/www.mtin.net\/blog\/category\/networking\/bgp\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.mtin.net\/blog\/wp-content\/uploads\/2018\/03\/lab-network.jpg?fit=842%2C683&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.mtin.net\/blog\/wp-content\/uploads\/2018\/03\/lab-network.jpg?fit=842%2C683&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.mtin.net\/blog\/wp-content\/uploads\/2018\/03\/lab-network.jpg?fit=842%2C683&resize=700%2C400 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