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As you know mobile telecommunication has evolved for years. With this evolution, new network elements were included or the existing ones were upgraded. Startig with 2G GSM technology, the evolution 
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Not So Stubby Area (NSSA) Not So Stubby Area name is the most funny name in network world, I think : ) Funny and useful. With NSSA, the External LSAs 
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As you know External Routes are the routes that provide connection to the other networks working with different IGP. Here, we are talking about OSPF and the networks routed by 
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In this article series we will concentrate on OSPF Area Types and their configuration examples on Packet Tracer. You can DOWNLOAD the Packet Tracer example with .pkt format HERE. As 
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How to Configure VPRN on Nokia Service Routers? In this post, we will focus on the configuration of VPRN Service on Nokia (Alcatel-Lucent) Service Routers. Here, We will use Alcatel-Lucent 
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