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OSPF Summarization Troubleshooting
Scenario: Mystical Corporation is using OSPF within their autonomous system. Their network is configured using different areas which seems to be working fine. One of the network engineers configured a summary for area 0 but it seems it’s…
Read More »Multicast RPF Failure NBMA Troubleshooting
Scenario: You are responsible for the frame relay and multicast configuration within the network. You use a lot of hub and spoke topologies and up to now you haven’t seen any problems. Yesterday one of your customers called…
Read More »OSPF Capability Transit Troubleshooting
Scenario: After months of hard work, studying and doing labs you have the feeling you truly know how routing protocols work. Your boss decides to upgrade your salary and your title from Trainee to Junior network engineer and…
Read More »OSPF RIP Redistribution AD Troubleshooting
Scenario: Recently the australian government has decided that every major City should be interconnected. So far different states have used their own routing protocol and some of the older hardware is unable to run OSPF. Government workers have…
Read More »OSPF Troubleshooting
Scenario: After months of hard work, studying and doing labs you have the feeling you truly know how routing protocols work. Your boss decides to upgrade your salary and your title from Trainee to Junior network engineer and…
Read More »NAT Dynamic Troubleshooting
Scenario: Working for a company based in the caribbean isn’t such a bad life. The sun is always shining and when there is no work you can relax at the beach. Today however you get a stress call…
Read More »EIGRP Troubleshooting
Scenario: You are the senior network engineer for a global company and responsible for the routing of the network. You have worked very hard to improve the network, helpdesk calls have been brought back to a minimum and…
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