This section covers the multi-tenancy use case scenario applied to the Telco Edge CSP cloud infrastructure environment with vCloud Director.
Telco Edge Workload Placement
The placement of workloads is typically a subset of the VNF onboarding process and is a collaborative effort between the VNF vendor and the CSP. A prescriptive set of steps must be followed to package and deploy a VNF. The VMware Ready for NFV program is a good vehicle to pre-certify the VNFs and the onboarding compliance with the vCloud Director platform to ensure smooth deployment in the CSP environment.
Before a VNF is onboarded, the VNF vendor must provide the CSP with all the prerequisites for the successful onboarding of the VNF. This includes information such as the VNF format, number of the required networks, East-West and North-South network connectivity, routing policy, security policy, IP ranges, and performance requirements.
After the VNF is onboarded, the tenant administrator deploys the VNF to either the Core data center or the Edge data center depending on the defined policies and workload requirements. The DRS, NUMA, and Nova Schedulers ensure that the initial placement of the workload meets the target host aggregate and acceleration configurations defined in the policy. Dynamic workload balancing ensures that the policies are respected when there is resource contention. The workload balancing can be manual, semi-supervised, or fully automated.
The following diagram describes the workload placement architecture for the edge sites with vCloud Director:
