The BGP synchronization rule requires that when a BGP router receives information about a network from an IBGP neighbor, it does not use that information until a matching route is learned via an IGP...
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EIGRP over a vNET trunk
New IOS release 15.x introduced Easy Virtual Network (EVN) functionality to leverage some existing deployment features such as VRF-Lite and QinQ. Its ease of configuration is a real advantage. The idea is very simple:...
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DUAL route FSM Processing of EIGRP Queries
An interesting case of how DUAL route FSM operates. First let’s note that an EIGRP router send a Query to its neighbor to find a better route to a destination that has passed from...
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