Admin Domain Overview
The Admin Domain feature enables you to partition the data center and define data center pods to group hardware and software VTEPs, Layer 3 gateways, and DCI gateways into administrative domains with similar properties. Admin Domains are independent of each other. You can create an admin domain, and specify certain functional roles within the admin domain. Admin domains are logical groups you create, based on the functional roles, which makes centralized L3 or Distributed L2/L3 deployments flexible and extendable.
Cisco VTS provides the functional roles, which you can use as desired to create the admin domains. You can set the system mode, control protocols, other parameters like replication mode (multicast/ingress), for each admin domain , and also assign devices to each of the functional roles. For example, you can pick certain leafs and put it in one group, and associate certain functional parameters to that group. The following functional roles are available:
Route Reflector Functional Group
For the L2 Gateway group you can pick the desired leafs and associate certain functional parameters to that group. Similarly, you can define another L3 gateway group, and you can link between these two groups. All L2 configuration can be pushed into the L2 gateway group; and all L3 configuration can be pushed into L3 gateway group.
You can create an L3 gateway group and can link from the L3 group to the DC gateway. You can have the DCI at the top, and this can be linked to the DC gateway.
The DC gateway can be outside the Admin Domain, and more than one Admin Domains may connect to this. You can have the DC gateway inside an Admin Domain, and connect it to an external DCI.
See for detailed information about creating Admin Domains.
The design validated in this release has:
L2/L3 gateway groups in all Admin Domain-Each Admin Domain can have its own L2 / L3 gateway.
DC Gateway outside the Admin Domain
DCI outside the Admin Domain.