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OSPF Configuration Example 4 : Redistribution Commands
Configuring Redistribution, E1 Metric, and Route Tags in OSPF In the tutorial “Understanding OSPF Redistribution” , we discussed different concepts in redistribution. In this one, we’ll go through the various OSPF commands related to redistribution. We’ll walk through a step-by-step process to configure redistribution in OSPF, focusing on scenarios like redistributing from Static routes and…
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OSPF Configuration Example 2: Multi-Area Setup
Configuring OSPF with Multiple Areas : Earlier, we covered how to configure OSPF with two routers in the same area. In this guide, we’ll walk through an example of configuring OSPF with multiple areas. Using four routers and three areas, we’ll demonstrate the setup process. The objective of this exercise is to help you understand…
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Understanding OSPF Redistribution
Table of Contents What is Route Redistribution? Redistribution in OSPF How LSA 4 is used in Redistribution? How LSA 5 is Used in Redistribution? What is “Forwarding Address” in LSA 5? OSPF E1 and E2 Routes Configuring Redistribution Understanding OSPF Route Redistribution and LSA Types OSPF (Open Shortest Path First) Redistribution allows different routing protocols…
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OSPF Configuration Example 3 : DR BDR election
Configuring OSPF DR and BDR with Interface Priority and Router ID In all shared networks like Ethernet, Frame Relay, and ATM, OSPF selects one router as the DR and another as the BDR. The DR reduces the number of adjacencies in these networks, preventing the flow of duplicate LSAs. You can check our other tutorial…
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Understanding OSPF DR BDR Election
Table of Contents What is a Designated Router or DR? What is a Backup Designated Router or BDR? DR BDR Election Process Why does OSPF elect the BDR before the DR? What is a DR Other? What happens after the election? How BDR will know DR is alive? OSPF Network types and DR BDR election…