NFV Hypervisor Domain

1. Network Function Virtualisation –
HyperVisor Domain
Neelima Sharma

2. The content of this presentation is taken from the ETSI
NFV specifications and from various presentations
available on internet

3. What is covered…
 Hypervisor Domain : Purpose
 Hypervisor : Architecture
 Hypervisor : External Interfaces
 Hypervisor : Internal Interfaces
 Hypervisor : MIB information
 Hypervisor : VIM communication specifications

4. NFV Infrastructure - Overview
 Below figure illustrate the section related to the Infrastructure

5. NFV Infrastructure – Reference Architecture Framework

6. NFV Hypervisor Domain - Purpose
 NFV Hypervisor domain provides
 sufficient abstract of the hardware to provide portability of software
appliances
 HyperVisor Domain
 Infrastructure Domain
 Hypervisor Domain provides
 Sufficient abstraction of the hardware for the portability of the Software
appliances
 Provide compute domain resources to the S/W appliances VM machines
 Provides management interfaces to the orchestration and management
system

7. Cloud Hypervisor – General Architecture

8. NFV Hypervisor Domain – Architecture

9. NFV Hypervisor Domain – Detailed Architecture

10. NFV Hypervisor Domain – Support for High
Performance
 Exclusive allocation of whole CPU cores to VM
 Direct memory mapped polled drivers for VM to directly access the
physical NIC’s
 Direct memory mapped polled drivers for VM for interVM
communications
 vSwitch implementation as a high performance VM

11. NFV Hypervisor Domain – External Interfaces Purpose

12. NFV Hypervisor Domain – Internal Interface Purpose
 Vi-Ha-Csr
 Interface between hypervisor and the compute domain
 Serves the purpose of hypervisor control of the hardware
 Enables abstraction of the hardware, BIOS, Drivers, I/O (NICs),
Accelerator and Memory
 Vi-Ha-Nr
 Interface between hypervisor and the network domain
 Hypervisor shall gather all relevant metrics from the networking domain
and provide to VIM
 Enables abstraction of the hardware, BIOS, Drivers, I/O (NICs),
Accelerator and Memory

13. NFV Hypervisor Domain – External Interface Purpose
 Nf-Vi-H external interface
 Interface between hypervisor and Virtualised Infrastructure Manager
(VIM)
 Nf-Vi-C external interface
 Interface between Compute and Virtualised Infrastructure Manager (VIM)
 Nf-Vi-N external interface
 Interface between Network and Virtualised Infrastructure Manager (VIM)

14. NFV Hypervisor Domain – MIB’s Details for Nf-Vi interface
 MIBS Functions/Objectives for data communication over Nf-Vi
interface:
 Resources (CPU, Memory, Storage, Adapters, Resource pools, Clusters)
 Systems ( Logs, NUMA, I/O etc..)
 Events
 VM Management
 Obsolete/Legacy
 Products supported (H/W and S/W)
 Analytics

15. NFV Hypervisor Domain – MIB’s Details for Nf-Vi interface
 MIBS Functions/Objectives :
 Analytics
 Checks the incoming metrics for abnormalities in real time, updates health scores, and
generates alerts when necessary.
 Collects metrics and computes derived metrics.
 Stores the collected metrics statistics. (filesystem).
 Stores all other data collected, including objects, relationships, events,dynamic
thresholds and alerts.
 Mutlicore Processors
 Hyperthreading
 CPU Affinity's
 Power management.

16. NFV Hypervisor Domain – Communication with VIM
Specs
 Virtual infrastructure manager (VIM) communication with Hypervisor.
 Refer to the attached excel workbook second sheet
 Virtual Machine specifications in the request generated
 Refer to the attached excel workbook first sheet
Attachment :