Contracts (ACI-E-CONTRACT)

Course Description

ACI Elite Series Contracts (ACI-E-CONTRACT)

The ACI Elite Series is a series of expert-led, 4-hour deep-dive sessions with hands-on lab practice. We cover different topics each week, so you can choose the ones that apply to you at a time that works for you. 

This session provides a deep dive into ACI Elite Series Contracts (ACI-E-CONTRACT).

Learning Objective

  • Explain how ACI uses contracts to allow for secured communication between endpoints


  • Contract Scope
  • Subjects
  • Filters
    • Directives (Log and Policy Compression)
  • Verifying L2 and L3 permit and denies from the GUI
  • Subject Labels
    • Apply both ways and reverse filter ports
  • EPG Labels
  • Deny Contracts
    • Taboo Contracts
    • Regular contracts with Deny Filter
  • VRF Enforced and Unenforced
  • Preferred Group
  • VZ_ANY
  • Consumed contract interfaces (Intro to leaking)


  • Enable EPG to EPG communication using Subject Labels and EPG Labels
  • Enable EPG to EPG communication using Preferred Group and VZ_Any VRF options
  • Block specific traffic using Taboo contracts and deny filters

For more information on the entire ACI Elite Series, click here.

Course Information

Length: 0.5 day

Format: Lecture and Lab

Delivery Method: Virtual

Max. Capacity: 16


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