In this topic we will briefly learn about the ACI terminology which are widely used and who figure is also described.
Tenant – A Tenant is defined as a separate unit like customer, BU, groups etc and it also separates traffic, admin, visibility, etc..
VRF– A VRF is helps in separation of routing instances and administration.
Bridge Domain(BD) – Bridge Domain is the container for subnets it is not a VLAN and can be used to define an L2 boundary
Subnet– IP addresses within a given Bridge Domain; must be unique within their associated L3 VRF.
Contract– It represent policies between EPGs; it is a contract though which two or more EPG talk to each other wih in VRF or between different VRF. Contract is “provided”by one EPG and “consumed”by another.
End-Point Group(EPG)– Container for objects requiring the same policy treatment (i.e. app tiers or services)