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Packet Tracer STP Portfast Configuration In STP (Spanning Tree Protocol) there are different states. These STP states are: Blocking State, Listenning State, Learning State and Forwarding State. With STP Portfast, 
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Theorically switches work in Layer 2 (Layer 2 switches). When you talk about switches, generally you do not think IP addresses. One of the ways that make a switch IP 
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Router on Stick Configuration on Packet Tracer   VLANs are the virtual LANS that provide divide your big network, into smaller pieces. Many companies use to divide their networks into 
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IS-IS Protocol and OSPF have some similarities and differences. Lets firstly check the similarities of these two protocol one by one: – IS-IS Protocol and OSPF are both Link-State Interior 
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There are three types adjacency in IS-IS Protocol.These are: – Level 1 routers form L1 adjacency with L1 and L1/2 Routers – Level 2 routers form L2 adjacency with L2 
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