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CCNP (Pre 2020)

  • First Hop Redundancy Protocols

    First Hop Redundancy Protocols are the Layer 3 answer to resiliency. It adds multiple Layer 3 paths to allow devices to reach their destinations. First Hop Redundancy Protocols by creating a virtual gateway for the network that is shared between Layer 3 devices. There are many different protocols but three are relevant for the CCNP…

  • UDLD – Unidirectional Link Detection

    Unidirectional Link Detection allows for monitoring of physical media that separates its send and receive media, like fibre optic cables. UDLD operates by transmitting a packet to the neighbour device that contains a system and port ID of the originating interface. The receiving interface gets this information and mirrors it back including its own system…

  • TSHOOT Topology

    The new TSHOOT exam requires you to isolate issues on a defined network topology. The purpose of the exam is to evaluate troubleshooting skills, not how quickly you can grasp a network topology you have never seen. To this end, it is Cisco‚Äôs intent that the exam network topology be available for review before the…