The Best Network Function Virtualization Tools

Network Function Virtualization (NFV) is a transformative technology that revolutionizes the way network services are deployed, managed, and scaled. Traditionally, network infrastructure relied heavily on dedicated hardware appliances for services like routing, firewalling, and load balancing. However, with the rise of NFV, these services can now be virtualized and run on standard servers. This strategy reduces reliance on proprietary hardware and offering greater flexibility and scalability.

NFV leverages software to deliver network functions, which can be rapidly deployed, modified, and scaled based on demand. As organizations increasingly move toward cloud-based infrastructure and more complex network environments. NFV offers a cost-effective and agile solution for managing network operations.

The NFV strategy allows businesses to replace traditional, hardware-based network elements with virtualized network functions that are easier to deploy, automate, and scale. With NFV, companies can increase their ability to adapt to changing business needs, improve resource utilization, and streamline network management.

This guide delves into the key benefits of NFV, including its impact on network performance, operational costs, and flexibility. We will explore how NFV integrates with other technologies, such as Software-Defined Networking (SDN), and how it enables the creation of more efficient and dynamic networks. Whether you’re an IT professional or business leader, understanding NFV is essential for modernizing your network infrastructure and staying competitive in today’s fast-paced digital landscape.

Recommendations on NFV systems

Before going deeper into an explanation of what NFV systems do, we have assembled a shortlist for those who don’t have time to read the whole review.

Here is our list of the best network function virtualization tools:

1. Red Hat OpenStack Services on OpenShift EDITOR’S CHOICE A powerful NFV platform, combining virtualization and cloud-native infrastructure. It enables flexible, scalable network functions with enhanced orchestration, management, and automation for modern telecom and enterprise networks.
2. Cisco NFV Infrastructure Provides secure and automated virtualization solutions for network functions with flexible deployment models, enhancing network efficiency, performance, and cloud-based service agility.
3. VMware Cloud Director Advanced virtualization, automation, and orchestration that enables efficient resource management and flexible cloud infrastructure for deploying network functions in dynamic environments.
4. Check Point CloudGuard Real-time threat protection, compliance, and secure network function deployments, ensuring continuous security for cloud-based network services.
5. Juniper Contrail Service Orchestration (CSO) Orchestration of NFV services, enhancing automation and performance with centralized management, scalability, and simplified deployment of network functions in cloud environments.
6. Nokia Cloud Platform Delivers flexible and scalable network virtualization that enables service providers to deploy, manage, and scale network functions efficiently.

Many of these solutions rely on hardware components and can’t be implemented with third-party network systems. So, buyers will need to assess their current hardware purchasing strategies when assessing each of these options.

Network Functions Virtualization (NFV) or Virtual Network Function (VNF) just as the name implies is a network architecture concept that leverages the IT virtualization technologies to virtualize entire network functions

NFV replaces network appliance hardware with virtual machines. The virtual machines use a hypervisor or software-defined networking controller to run networking software and processes such as routing and load balancing.

An NFV architecture consists of three parts:

• Centralized virtual network infrastructure An NFV infrastructure can rely on either a container management platform or a hypervisor, which abstracts the computing, storage, and network resources, providing the necessary foundation.
• Software applications Software replaces the hardware components found in traditional network architectures, effectively providing various network functionalities through virtualized network functions.
• Framework A framework, commonly referred to as MANO (Management, Automation, and Network Orchestration),  is needed to manage the infrastructure and provision network functionality.

NFV aims to transform traditional network services by virtualizing network functions, moving them from dedicated hardware appliances to software-based instances that run on standard servers. The idea behind NFV is to decouple network functions from the underlying hardware and run them as virtualized software instances on general-purpose servers or in the cloud.

In this article, we’re going to review the best network function virtualization tools. Hopefully, this will guide you in the process of choosing the right one for your organization.

The Best Network Function Virtualization Tools

1. Red Hat OpenStack Services on OpenShift

Red Hat OpenStack Services on OpenShift is a cloud computing platform that provides Infrastructure-as-a-Service (IaaS) capabilities. It is an open-source cloud platform based on OpenStack, which is a collection of open-source software projects that work together to enable the creation and management of public and private clouds. OpenStack is designed to provide a scalable and flexible cloud infrastructure that allows users to deploy and manage virtual machines, storage resources, and networking components.

Key Features:

• Infrastructure as a Service (IaaS)
• Platform for cloud services
• Integrated usage and cost tracking
• A self-service platform for containers

Why do we recommend it?

Red Hat OpenStack Services on OpenShift provides a way to implement cloud services. So, if you are running a SaaS project, you can set up hosting on a server with this package. As it is an Infrastructure-as-a-Service package, the OpenStack system opens up a number of delivery options for hosted applications and that list includes NFV capabilities.

Red Hat OpenStack Services on OpenShift can be utilized as a platform for Network Function Virtualization (NFV). OpenStack NFV works by leveraging the capabilities of OpenStack to virtualize and manage network functions, which were traditionally implemented as dedicated hardware appliances. By virtualizing these functions, NFV allows network operators to run them as software instances on standard servers, storage, and networking infrastructure.

The first step in OpenStack NFV is identifying the network functions suitable for virtualization. By breaking down these functions into software instances, they become more agile and can be easily provisioned and scaled as needed. OpenStack’s components like Nova, the compute service, handle the management of virtual machines running NFV applications, while Neutron, the networking service, configures network connectivity for the virtualized functions, enabling seamless communication between them. Central to the success of OpenStack NFV is the orchestration process, often facilitated by the OpenStack Heat service. With Heat, network operators can define templates and workflows, specifying the network functions required for deployment, as well as the desired number of instances, configurations, network connectivity, and security settings.

OpenStack NFV synergizes with Software-Defined Networking (SDN) solutions to create a comprehensive and adaptable network ecosystem. SDN allows the centralized management of network traffic, providing dynamic adjustments to accommodate the requirements of NFV applications. Additionally, OpenStack NFV remains open to incorporating emerging technologies, enabling network operators to leverage innovations and stay at the forefront of networking advancements.

Who is it recommended for?

OpenStack is a mainstream cloud platform management package. It is a reliable service from a respected brand. However, its NFV capabilities are not so straightforward. This isn’t an option you can pick off a set up menu and get running within minutes. This is a prospect for a company that has an Infrastructure-as-Code development expert on the team.

The combination of OpenStack’s robust cloud computing platform and NFV’s virtualization prowess empowers network operators to create highly adaptable, resilient, and future-ready network environments. As the demand for faster and more agile networks continues to grow, OpenStack NFV is poised to remain at the forefront of technological advancements, shaping the landscape of modern networking for years to come.

2. Cisco NFV Infrastructure (NFVI)

Cisco NFV Infrastructure (NFVI) is a solution offered by Cisco Systems, a leading networking, and IT technology provider, to support Network Function Virtualization (NFV) deployments in modern telecommunications networks. NFVI is a foundational platform that provides the necessary computing, storage, and networking resources to run virtualized network functions.

Key Features:

• NVF hardware
• Virtualization manager
• Network services orchestrator

Why do we recommend it?

Cisco Systems is a major network equipment manufacturer and it is a leader in code-based network management and security systems, such as access control lists. The company uses the Cisco NVF Infrastructure product line to market a hardware range rather than a purely virtualized package of systems.

The primary objective of Cisco NFVI is to create a robust and scalable infrastructure that allows Communication Service Providers (CSPs) and Network Operators to deploy and manage virtualized network functions efficiently. By virtualizing network functions, CSPs can replace traditional hardware-based appliances with software-based instances, leading to increased agility, cost savings, and faster service delivery.

Cisco NFVI leverages Cisco’s expertise in networking and IT technology to provide a robust and scalable infrastructure for hosting virtualized network functions. This infrastructure is built on Cisco’s industry-leading hardware platforms, including Unified Computing System (UCS) servers, Nexus switches, and MDS storage solutions. These components ensure the high performance and reliability required to handle the demands of virtualized workloads.

The key components and building blocks of Cisco NFVI infrastructure include: 

• Compute Cisco Unified Computing System (Cisco UCS) for a carrier-class and reliable computing infrastructure.
• Storage Cisco UCS hardware and CEPH provide reliable storage. The user has the option to introduce additional storage as capacity needs grow.
• Networking Cisco Nexus 9000 series hardware provides high throughput, low latency, and rich feature sets.
• Virtualized Infrastructure Fully integrated Red Hat Enterprise Linux and Red Hat OpenStack Services on OpenShift Platform runs on top of the Cisco Unified Computing System (Cisco UCS). It is open source yet hardened and mature.
• Management Cisco UCS Director functions as a unified management tool across multiple virtual environments. SDN controller is optional.

Who is it recommended for?

Cisco markets its NVF Infrastructure to data centers. The line includes servers, switches, and routers – real world hardware rather than software-based virtualizations. The company specifically mentions the Telco sector as its target market. The company offers a range of software products that run on the recommended Cisco hardware.

Embracing Cisco NFVI is a strategic step towards building future-ready networks that deliver enhanced customer experiences and drive innovation in telecommunications.

3. Check Point CloudGuard 

Check Point offers a diverse range of virtual network security products tailored to cater to various potential use cases. Virtualized network security solutions, particularly those implemented using Virtual Network Functions (VNF), play a crucial role in safeguarding cloud networks where physical security appliances are not viable alternatives.

Key Features:

• Cloud Security
• Virtual gateway
• Protects cloud services

Why do we recommend it?

Check Point CloudGuard is a protection service for cloud-based services, including microservices (functions) and containers. The company produces a cloud-based firewall for on-premises systems, called Quantum Edge. So, you might end up using both of these products to protect your entire estate. This tool can also be used to marshall CI/CD pipeline progress.

Check Point provides Network Functions Virtualization (NFV) implementations of essential security solutions. Among these offerings are Quantum Edge, a virtualized Next-Generation Firewall (NGFW), and Check Point CloudGuard. This powerful solution enables the virtualization of network security functions, delivering enhanced protection and flexibility in the ever-evolving world of cybersecurity. As an integral component of the CloudGuard Cloud Native Security platform, CloudGuard Cloud Network Security delivers cutting-edge threat prevention and automated cloud network security. It achieves this through a virtual security gateway, offering a unified approach to security management across all your multi-cloud and on-premises environments.

Check Point CloudGuard empowers organizations to deploy virtual instances of Check Point’s renowned security gateways within their virtualized environments. By leveraging virtual machines (VMs), CloudGuard enables the creation of virtual security gateways that function as independent and scalable security appliances. This approach allows for the consolidation of security services and the optimization of resources, leading to cost savings and improved operational efficiency.

CloudGuard facilitates the allocation of compute, memory, and network resources to the virtual security gateways based on the specific requirements of the network environment. This dynamic resource allocation enables organizations to scale their security functions up or down based on network demands, ensuring optimal performance and efficient resource utilization. As network traffic fluctuates, CloudGuard automatically adjusts the allocated resources, providing flexibility and scalability to match changing security needs.

Who is it recommended for?

This system is a good option for companies that use cloud services for Web applications, such as AWS Lambda and Kubernetes-guided container systems. The system provides protection from advanced persistent threats (APT) and insider threats by spotting anomalous behavior in access to cloud accounts.

CloudGuard seamlessly integrates with popular virtualization and orchestration systems such as VMware, OpenStack, and others. This integration streamlines the deployment, management, and automation of virtual security gateways, simplifying the overall administration of the virtualized network security infrastructure.

4. Juniper Contrail Service Orchestration (CSO)

Juniper Contrail Service Orchestration is a robust software platform that serves as a bridge for a wide range of enterprise and multi-tenant service provider solutions, including secure SD-WAN, Network Functions Virtualization (NFV), and telco cloud, among others. This versatile platform is available as both an on-premises product and a cloud-managed service.

Key Features:

• Service management
• Telco services
• Infrastructure coordination

Why do we recommend it?

Juniper Contrail Service Orchestration is a management console for multiple Infrastructure-as-a-Service packages, which includes NFVs. The tool lets different IaaS platforms interact and exchange data. Think of this as SOAR for cloud systems. It receives input from various cloud services and can adjust infrastructure according to potential demand or shutdown activity that appears to be threatening.

CSO acts as a comprehensive management and orchestration platform specifically designed for NFV deployments. It facilitates the automation and simplification of NFV lifecycle management, providing operators with powerful tools to streamline the provisioning, configuration, scaling, and monitoring of virtual network services.

CSO plays a vital role in designing, securing, automating, and managing the complete life cycle of SD-WAN services. CSO leverages Juniper Networks’ Contrail Networking technology, an SDN controller, as its foundation. Contrail Networking provides network virtualization and overlay capabilities, while CSO extends its functionality to address the unique requirements of NFV deployments. CSO operates through a controller-based architecture, where a centralized controller orchestrates the virtualized network functions and manages their lifecycle. The controller communicates with the underlying infrastructure, such as hypervisors and physical network elements, to provision and manage virtual resources.

CSO Key Features and Capabilities include:

• Network orchestration and control are seamlessly automated through Zero Touch Provisioning (ZTP) and configuration templates.
• Complete visibility into the traffic flow, security events, and policies is provided, all delivered from the cloud.
• Efficient management of application Service Level Agreements (SLAs) with over 4500 application signatures, ensuring automated provisioning of applications and resources across various network connections and paths.
• Integrated comprehensive security solutions from Layer 1 to 7, including next-generation firewall, content security, security intelligence, and advanced threat prevention.
• A highly redundant platform with spoke redundancy, hub site redundancy, and multihoming capabilities.
• Support for multiple tenants and robust role-based access control (RBAC), simplifying the process of serving and managing multiple customers.

Who is it recommended for?

This system is suitable for use by businesses that run their own services as SaaS platforms. The package will adjust resource usage according to projected capacity requirements. Thus, potentially, it can enable businesses to pair down their reserved capacity in the knowledge that expansions can be added on instantly.

CSO seamlessly integrates with SRX Series next-generation firewalls and NFX Series Network Services Platforms, ensuring comprehensive and efficient service delivery. Additionally, it federates with Mist Cloud, enabling seamless management of Wi-Fi networks. The platform also acts as a service orchestrator for the vSRX Virtual Firewall, which is accessible through popular public cloud marketplaces like Amazon Web Services (AWS) and Microsoft Azure. A live demo of Juniper CSO is available on request.

5. Nokia CloudBand

Nokia CloudBand is a cloud management and orchestration platform designed to enable network operators to efficiently deploy and manage virtualized network functions (VNFs) and services. It provides the necessary infrastructure and tools to build, deliver, and operate cloud-based services in a scalable and automated manner.

Key Features:

• Maps virtualizations to containers
• Useful for microservice delivery
• Supports 5G

Why do we recommend it?

Nokia CloudBand provides migration for virtualized network services to container-based systems. This is a necessary step to reach over 5G networks but not for your existing customers. So, you might need to run both virtualized systems and container services simultaneously.

Nokia’s CloudBand software is a highly adopted solution for ETSI NFV MANO (Management and Orchestration), known for its established track record of reliability, automation, repeatability, and security. The CloudBand portfolio offered by Nokia simplifies the hosting, orchestration, automation, and management of Virtual Network Functions (VNFs). It has a wide deployment base, managing tens of thousands of servers across over 200 service providers worldwide.

At the core of Nokia CloudBand lies the Infrastructure Software, which provides the foundation for virtualization and cloud computing. It offers essential capabilities such as hypervisor support and management functions, enabling operators to efficiently deploy and manage VNFs on standard hardware infrastructure.

The CloudBand Application Manager module is responsible for the seamless deployment and lifecycle management of VNFs and cloud applications. Through automation and orchestration, it enables operators to effortlessly scale, heal, and upgrade services. The Application Manager ensures the reliable and efficient operation of VNFs, enhancing service agility and reducing manual intervention. The CloudBand Management System acts as a centralized control hub, offering operators a unified view and management interface for the entire CloudBand environment.

Who is it recommended for?

Running network services over containers instead of virtual networks is a requirement of implementing 5G, so you could be presented with a headache trying to remap all of your infrastructure if you want to upgrade the connection type on your Telco infrastructure. This is particularly important if you want to run connections out to mobile devices.

Through its multi-vendor support, scalability, reliability, and strong security measures, CloudBand enables operators to deliver cutting-edge network services while ensuring a seamless and secure experience for their customers.