Contents
| 1 | Introduction |
| 1.1 | Purpose and Scope |
| 1.2 | Target Group |
| 1.3 | Typographic Conventions |
2 | Requirements on Virtual and Cloud Infrastructure |
| 2.1 | Host CPU Requirements |
| 2.2 | Generic Requirements |
| 2.2.1 | Block Storage / Ephemeral Storage |
| 2.2.2 | vNICs |
| 2.2.3 | External Access |
| 2.2.4 | L2 Redundancy |
| 2.2.5 | L3 Redundancy |
| 2.2.6 | IP Address Allocation |
| 2.2.7 | Latency |
| 2.2.8 | Packet Loss |
| 2.2.9 | Dimensioning |
| 2.3 | Supported Virtualized and Cloud Infrastructure |
| 2.3.1 | KVM |
| 2.3.2 | VMWare |
| 2.3.3 | ECEE |
| 2.3.4 | OpenStack |
Reference List | |
1 Introduction
This document provides guidelines for deploying Ericsson Dynamic Activation (EDA) as a virtual cluster or in a cloud environment.
A Virtual Machine (VM) is a piece of software that can be executed on top of a hypervisor layer, emulating physical hardware. Guest refers to the operating system and the application running on a VM.
For general information about virtualized deployments, see Function Specification Dynamic Activation Execution Environment, Reference [1].
1.1 Purpose and Scope
The scope of this document is to specify the requirements of the host hardware and software components required for deploying the Dynamic Activation virtual appliance.
1.2 Target Group
The target group for this document is as follows:
- Solution Architect
- System Integrator
The target groups are described in more detail in the Library Overview, Reference [2], document.
1.3 Typographic Conventions
Typographic conventions are described in the document Library Overview, Reference [2].
For information about abbreviations used throughout this document refer to Glossary of Terms and Acronyms, Reference [3].
2 Requirements on Virtual and Cloud Infrastructure
This section describes the requirements on the physical host hardware, virtualized and cloud Infrastructure. These requirements must be met to be able to deploy the Dynamic Activation virtual or cloud appliance.
2.1 Host CPU Requirements
The host requires an x86-64 host processor with support for one of the following hardware-assisted virtualization instruction sets:
- AMD virtualization (AMD-V)
- Intel virtualization (VT-x)
2.2 Generic Requirements
This section describes generic requirements for both virtual and cloud deployments.
2.2.1 Block Storage / Ephemeral Storage
Dynamic Activation system requires the underlying infrastructure to provide either of the following in accordance with the output provided by the Dimensioning Tool:
- Block Storage – for Virtualized and Cloud OpenStack deployments
- Ephemeral disk – for Cloud CEE deployments
2.2.2 vNICs
Dynamic Activation system requires a minimum of two vNICs per VM:
- Internal
- External
2.2.3 External Access
The external network must be made routable through the virtual or cloud infrastructure hosting Dynamic Activation Virtual Network Function (VNF).
2.2.4 L2 Redundancy
Fail-over time at L2 level cannot be higher then 3000 ms.
2.2.5 L3 Redundancy
Dynamic Activation relies on VRRP for fail-over. In the underlying infrastructure the following applies:
- IGMP snooping must be disabled
- ARP spoofing must be enabled
2.2.6 IP Address Allocation
For Cloud deployments DHCP is used on all Dynamic Activation IP interfaces.
2.2.7 Latency
The latency towards surrounding systems (northbound and southbound) must not exceed 50 ms in one direction.
The round-trip time between the Dynamic Activation VMs must not exceed 2 ms.
2.2.8 Packet Loss
Packetloss towards surrounding systems (northbound and southbound) must not exceed 1×10-3.
Packetloss internally (between the Dynamic Activation VMs) must not exceed 1×10-5.
2.2.9 Dimensioning
- Each VM requires at least 20 GB of RAM.
- Dynamic Activation image size is 50 GB.
- Required number of vCPUs (allocated hyper threads) per
VM (N) can be calculated by using the formula:
N × CPU-clock-frequency (in GHz) ≥ 19
- Note:
- For experiment use, Dynamic Activation VM can be allocated a minimum of 6 vCPUs (hyper threads) without generating alarms related to high CPU load and still be able to handle occasional provisioning requests.
For more detailed information about dimensioning, please refer to Dimensioning Tool, which can be found in the Ericsson Product Catalog, or via this link.
Running Dynamic Activation VMs with less resources than what is proposed by the Dimensioning Tool can cause throughput problems, for which Ericsson takes no responsibility.
2.3 Supported Virtualized and Cloud Infrastructure
Virtualized deployment of Dynamic Activation requires either of the following:
2.3.1 KVM
A host platform with Linux x86_64 kernel (2.6.32 or later), and corresponding KVM kernel modules, for example:
- Note:
- Libvirt user-space components are required for deploying, and managing virtual machines on top of KVM.
- kvm.ko
- kvm-amd.ko or kvm-intel.ko
It is recommended to use the KVM kernel modules and libvirt user-space components provided by the package manager in your Linux distribution.
System verification of virtual Dynamic Activation has been done for KVM hypervisor running on RedHat Enterprise Linux (RHEL6/RHEL7/RHEL7.1/RHEL7.2).
For more information on:
- KVM kernel modules, see Reference [4]
- libvirt user-space tools, see Reference [5]
2.3.2 VMWare
VMware ESXi 5.1 and later.
For more information, see Reference [7].
2.3.3 ECEE
Cloud deployment requires a working Ericsson Cloud Execution Environment (ECEE) release R6A/1 or later, based on ECEE backwards compatibility.
Deployment is supported via Heat Orchestration Template (HOT) – minimum heat_template_version: 2014-10-16.
For more information, see Reference [8].
2.3.4 OpenStack
OpenStack (Newton or later) is a supported platform for cloud deployments.
Deployment is supported via Heat Orchestration Template (HOT) – minimum heat_template_version: 2016-10-14.
For more information, see Reference [9].
Reference List
| Ericsson Documents |
|---|
| [1] Function Specification Dynamic Activation Execution Environment, 6/155 17-CSH 109 628 Uen |
| [2] Library Overview, 18/1553-CSH 109 628 Uen |
| [3] Glossary of Terms and Acronyms, 0033-CSH 109 628 Uen |