Summary: Cisco Application Centric Design Guide

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PLEASE KNOW!!! There are just 23 flashcards and notes available for this material. This summary might not be complete. Please search similar or other summaries.

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  • 6 Overview of Cisco ACI Forwarding

  • 6.1 VXLAN Forwarding Infrastructure

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  • What is the abbrevition of VXLAN?

    Virtual Extensible LAN
  • 6.1.1 VXLAN Tunnel Endpoints

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  • What is a VTEP?

    A VTEP is a virtual or physical device that maps end devices to VXLAN segments and performs encapsulation and decapsulation
  • What kind of interfaces does the VTEP have?

    -Interface on local segment used to connect end devices
    -Interface on IP transport network used to encapsulate layer 2 frames into udp packets and send them over the transport network
  • What is the abbreviation of PTEP?

    physical tunnel endpoint
  • What is the abbreviation of FTEP and for what is it used?

    Fabric loopback TEP (Tunnel end point)

    Used to encapsulate traffic in VXLAN to a vSwitch VTEP if present
  • What does proxy TEP (PTEP)do?

    Proxy TEP is an anycast address that exists across all spines and is used for forwarding lookups into the mapping database
  • What control-plane protocols are running inside the fabric?

    ISIS (used to maintain infrastructure reachability)
    COOP (runs on on the PTEP loopback to synchronize endpoint database)
    MP-BGP (run on PTEP loopback to advertise external WAN routes through the fabric)
    VXLAN tunnels to PTEPs
  • What is the infrastructure loopback address used for?

    This address is used for communication with the APIC, for MPBGP peering, and for traceroute or ping in the infrastructure
  • What is the vPC loopback  VTEP address loopback address used for?

    this IP address is used when the two leaf nodes forward traffic that enters through a vPC port. Traffic is forwarded by the leaf using the VXLAN encapsulation. This address is shared with the vPC peer
  • What is the Fabric loopback TEP address used for?

    All leaf nodes in the fabric have an IP address to communicate with the VTEP southbound (for instance, with a Cisco Application Virtual Switch [AVS]).
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