In times of COVID-19 connect and protect your business and employees securely – here is how

Communication Service Providers


Security VNFs for the
Telecom Cloud

The Clavister Security VNF (Virtualized Network Function) for telecom networks uniquely combines high-performance, scalability and carrier-grade features.
Leveraging the benefits of SDN (Software Defined Networks) and NFV (Network Functions Virtualizations), communication service providers are estimated to reduce operational costs (Opex) with 60% and Capital investment costs (CapEx) with 40%.

The benefits are attractive but moving from legacy networks to a more dynamic and complex Cloud environments can be challanging. The Clavister Security VNFs ensures that security is maintained also in the new generation of telecom networks without having to worry about hardware sprawl or performance bottlenecks.


Natively designed for Virtualization – SDN/NFV

To meet the unique requirements and demands from the Telecom Cloud, using Virtualization technologies such as SDN/NFV,
the Clavister Security VNFs offers these key capabilities:


Fully Virtualized

Clavisters Security VNF is completely software based and natively built for virtualization and is compatible with most hypervisors on the market, including KVM and VMware.


Orchestration and Management

The Clavister Security VNF executes seamlessly in Telecom Cloud environments and frameworks such as Openstack.


Extensive Eco-system

To ensure smooth integration of the Clavister Security VNFs in a telecom cloud, Clavister cooperates and integrates with leading vendors in the market, including: Nokia, Intel, Red Hat, Windriver, vmware, Openstack and others.

Telecom Use Cases

Designed for Telecom

The Clavister Security VNFs has been purpose built and optimized for telecom networks. In close collaboration with several leading industry partners, robustness, features and integration capabilities has been fine tuned for an optimal solution.

The Clavister Security VNFs provides a unified approach for securing a wide range of telecom use cases, including:

  • 4G/5G Backhaul Security
  • Gi/SGi Firewalling
  • Domain Security
  • WiFi Optimization

Through compliance and support for several industry standards such as 3GPP and ETSI-NFV the Clavister Security VNFs integrates seamlessly.

Backhaul Security

4G/LTE technology has matured and evolved from early-stage testing to mass-market resulting in massive growth and transformation all over the world. Most LTE-networks are deployed without security due to time-to-market prioritisation and, with the proliferation rate of Small Cells for congested areas, the need for secure backhaul increases dramatically.

Clavister secures the LTE networks with a flexible and cost effective solution for securing and encrypting the vulnerable interfaces used for backhaul traffic from the radio base stations (eNodeBs) to the network core.

Reliability and privacy can be ensured by encrypting all traffic that traverse over untrusted networks, including the S1-U and S1-MME interfaces.

Key highlights:

  • Purpose Built for Virtualization and SDN/NFV
    • Fully Virtualized
    • Integrates SDN Controllers and NFV Orchestrators
    • Part of a strong Eco-System ensures smooth integration
    • Ready for Service Function Chaining (SFC)
    • Ready for Service Automation (Scale-Up / Scale-Out)
    • Compliant with ESTI-NFV standards
  • Highest Security Performance on the Market
  • Designed for Telecom
  • Scalable and flexible business model

Core Security – Gi/SGi Firewall

Already now, more than 20 billion devices are connected to the Internet and analysts predict that within a few years, the number will rise to something in the range of 40–50 billion. Not only are the number of devices increasing but so to the amount of data-traffic demanded.

“The unprecedented growth of data-traffic in mobile networks means that the Gi/SGi firewalls protecting your core-network must be able to scale in a completely new proportion, without adding more costs as competitive pricing is a must.”

Clavister’s Security VNF operates as Gi/SGi Firewalls and protects both the Core network and subscribers against attacks and intrusions.

Key Highlights

  • Natively designed for Virtualization and SDN/NFV
    • Integrates with SDN controllers
    • Integrates with NFV orchestrators
    • Supports OpenStack and HOT Templates for rapid provisioning
  • Highest Security Performance on the market
  • High capacity for Concurrent Connections
  • Carrier-Grade NAT (CG-NAT)
  • DDoS Protection with IDP and Traffic Anomaly Filtering (Rate Limits)
  • Powerful Quality of Service and Bandwidth Management
  • Designed for Telecom and 3GPP Compliance

Want to learn more? Download the brochure

This product brochure describes the capabilities of Clavister Virtual Stream Series using cOS Stream 3.20.



Firewall Performance* (Gbps)5102040
VPN Performance (Gbps)2,5 51020
Concurrent Connections1M 2.5M5M10M
Concurrent VPN Tunnels (IPsec)2,000 3,000 5,000 10,000
Ethernet InterfacesUp to 3 Up to 5Up to 7 Up to 10
Virtual Interfaces (VLAN 802.1q)256 5121,0242,048
Virtual Routers50 500100 200200
Support for High Availability (HA)YesYesYesYes
Minimum available memory for the virtual machine2 GB 2 GB4 GB8 GB
Minimum recommended number of allocated CPU cores2 2 4 8
Minimum available storage2 GB2 GB2 GB2 GB
Clavister cOSClavister cOS StreamClavister cOS StreamClavister cOS StreamClavister cOS Stream

*)  Firewall Performance is based on RFC 2544. Actual performance may vary depending on network conditions, number of activated services and host hardware capabilities.sum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.

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