How to tackle NFV AAA deployment challenges

Network Function Virtualization (NFV) helps service providers transform deployment and operational processes. The maturing of NFV means that AAA can now be deployed virtually — a game-changer that optimizes resource utilization and network operations. From our experience in deploying virtualized AAA (vAAA), we’ve noticed there are some frequently occurring challenges. The good news is, we’ve also identified how to address them.

First things first: the most important thing about NFV

Conventional hardware infrastructure deployments mean the installation of application-specific servers or appliances on the customer’s premises. Network Function Virtualization (NFV) technology introduces a well-defined cloud architecture that eliminates the bind between application and physical server by virtualizing network services.

Deploying virtualized network functions (VNFs) reduces the need to maintain vendor-specific or customized physical infrastructure. Applications can now be deployed on standardized and shared infrastructure, significantly reducing operational costs and making it faster to implement.

What objectives do NFV-based deployments meet?

Important outcomes that make NFV software-defined networking (NFV SDN) increasingly valuable include reduced complexity of networks, faster services, and lowered dependence on expensive physical storage. Further, NFV-based deployments aim to maintain a standard-based infrastructure shared by all VNF vendors, keeping OPEX and CAPEX low. Its core objectives include:

Efficiency

The NFV platform must have availability-adjusted NF SLAs that are identical to SLAs offered with dedicated services, specifying, for instance, the average delay, bandwidth, and availability of all services provided to the subscribers. To ensure SLA compliance, it needs to closely track network performance and dynamically adjust resources.

Scalability

The NFV platform should support a large number of VNFs and scale as traffic volumes and application usage increase. The ability to deliver a variety of NFs per subscriber could lead to the creation of new services, opening new ways for operators to monetize their networks.

Reliability

The NFV platform must comply with reliability requirements to offer high service availability, which is defined as end-to-end service availability including end-to-end service elements (VNF and infrastructure components).

How to overcome challenges in NFV AAA (vAAA) deployments

Let’s take a look at the top six NFV implementation challenges and the ideal solutions we’ve developed to address them.

Conclusion

NFV reduces dependence on dedicated infrastructure. As a result, a vAAA solution enables significant customization and scalability that cuts across the operator’s entire network framework. Operators can, therefore, earn additional revenue without investing in any new hardware.

One of just a handful in the market, Alepo’s NFV- and 5G-compliant virtualized AAA (vAAA) can be deployed in any NFVi environment according to ETSI standards. Manage the entire AAA VNF life cycle with Alepo using its specific Virtual Network Function (sVNF), or integrate with a generic Virtual Network Function (gVNF) from any NFVi vendor. The carrier-grade 3GPP AAA is designed to optimize mobile, WiFi, and fixed network performance. Equipped with a proven and scalable integration framework, it optimizes scalability and resource utilization through orchestration. It can be rapidly deployed and offers quick insights into the way IP data services are accessed and consumed.

Source: Alepo Blog