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200-301 V1 Ch20: OSPF Config

Config Lab: OSPF Metrics

Config Lab: OSPF Metrics

🕔15:05, 24.Sep 2021 OSPF chooses the best route to reach a subnet based on the lowest cost among all possible routes. OSPF calculates the cost as the sum of the OSPF interface costs of all outgoing interfaces in the route. Unsurprisingly, you can Read Full Article
Config Lab: OSPF Router IDs

Config Lab: OSPF Router IDs

🕔13:05, 24.Sep 2021 OSPF uses a router's Router ID (RID) to identify each router. We see the RID in many OSPF verification commands, so using predictable, known OSPF RID values can help people operate networks. This lab asks you to configure the OSPF Read Full Article
Config Lab: Multi-area OSPF 2

Config Lab: Multi-area OSPF 2

🕔19:05, 21.Sep 2021 A router configuration can enable OSPF on an interface directly using the ip ospf interface subcommand. In fact, the configuration is more direct and obvious than the old traditional use of the OSPF network subcommand. This lab combines OSPF interface Read Full Article
Config Lab: Multi-area OSPF 1

Config Lab: Multi-area OSPF 1

🕔17:05, 21.Sep 2021 When using the OSPF network command, whether single area of multi-area, you have to be careful with the wildcard mask used and which interfaces each network command matches. With multiple areas, that concern increases, because incorrect matching can place a Read Full Article
Config Lab: OSPF Network Config 2

Config Lab: OSPF Network Config 2

🕔16:05, 21.Sep 2021 What if your #CCNA exam required you to configure the OSPF network command with a particular style of mask? What if it said “match all addresses in the subnet”, or “match all addresses in the classful network”? Or even “match Read Full Article
Config Lab: OSPF Network Config 1

Config Lab: OSPF Network Config 1

🕔15:05, 21.Sep 2021 The OSPF network command can cause a bit of mental trouble for anyone just starting out. The reason: the first two parameters require us to do a little math, compare that result to the router’s interface IP addresses to then Read Full Article
Config Lab: OSPF Interface Config 2

Config Lab: OSPF Interface Config 2

🕔11:05, 21.Sep 2021 It’s too easy – enabling OSPF per interface rather than using the old IOS network command. In some ways, we may not trust that it’s that easy. So get some practice with today’s lab, a nice clean set of OSPF Read Full Article
Config Lab: OSPF Interface Config 1

Config Lab: OSPF Interface Config 1

🕔09:05, 21.Sep 2021 From the first days of OSPF in Cisco routers, OSPF configuration has included a network command. The network command enables OSPF on that router’s interfaces, but it uses indirect logic. In fact, the network command does not list interface numbers. Read Full Article
Packet Tracer Labs – CCNA Vol 1 Chapter 20

Packet Tracer Labs – CCNA Vol 1 Chapter 20

🕔09:05, 11.Feb 2020

For many years, over many different versions of the CCNA exam, Cisco included multiple IP routing protocols in the exam: RIP, OSPF, EIGRP, and even BGP. With CCNA 200-301, Cisco reduced IP routing protocols down to only one: OSPF. Chapter

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OSPF: Cert Guide PT Labs for ICND2 Chapter 8

OSPF: Cert Guide PT Labs for ICND2 Chapter 8

🕔09:05, 2.Sep 2019

The CCNA 200-125 exam includes OSPF as one of several routing protocols (RIP, EIGRP, OSPF, BGP). The new CCNA 200-301 has OSPF, and OSPF only. This post details how to take advantage of some Packet Tracer files to re-create the

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