Microsoft NLB

One of the services Windows Server integrates: NLB (Network Load Balancing) that serves to balance/distribute/balance TCP and UDP traffic between servers.


ZEVENET® began its public release in October 2010, and we have not stopped refining security, scalability, and high availability technology ever since.

Strengths & Weaknesses: Microsoft NLB & ZEVENET

See how ZEVENET and Microsoft NLB compare across some of the most critical ADC capabilities.

Microsoft NLB’s Strengths

Microsoft has increased its investment and commitment to delivering enterprise ADC services and we anticipate this trend to continue.
Within Azure, basic ALB services are included free with the vendor’s “standard” tier of VMs.
Microsoft´s AAG service can balance traffic destined for servers that are outside the server cloud, including on-premises.
In the future it is anticipated that Azure´s ADC functionality will be extended to support on-premises workloads in conjunction with Azure stack.

ZEVENET’s Strengths

Disruptive vision with a stable growth as challengers in the ADC market, with an agile team and engaged community.
Innovation driven with Open Source technology with no vendor lock-in and broad platforms integration (hardware, virtual, bare metal and cloud).
Very high cost-effective solutions without limitation products and services, suitable for both midsize organizations and large enterprises.
Investment in R&D to deliver a technology driven by easiness, performance and security.
Is a complete ADC (Application Delivery Controller) that could manage all kinds of network protocols (UDP, TCP, HTTP/S, SCTP, SIP, T/FTP, …) but also with a combination of all of them simultaneously and multiport capabilities; and it’s not oriented to licensed features.
Its operating system is fully optimized for networking so it is capable to move in layer 7 more than 140 thousand concurrent users and in layer 4 more than 10 million concurrent users with only 2 dedicated cores.
Ability to create configuration backups, easy cluster configuration, automatic replication from one node to another and stateful cluster with real time sessions replications that permits a failover between nodes without losing any connection.
Provides an integrated IPDS security system with real time black hole lists, DoS protection, black/white listing and protection of the most common network attacks.
Provides a very UX graphic interface for both operators and network engineers in Angular 2 technology.
Automation capabilities thanks to it’s fully programmable REST+JSON API.

Microsoft NLB’s Weaknesses

Cisco has demonstrated limited application knowledge compared with its competitors.
Next generation service architectures are not complete and not encompassed ADC functionality.
Decline in clients request concerning Cisco’s ADC solutions-reflected in continuing marketing decline.

ZEVENET’s Weaknesses

Young brand as an open source company and yet to develop a big influence than other more established vendors.
Needs to develop a broader partnership network.

*Summarised from the latest Gartner ADC report.


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We do not believe in limitations per core, memory or throughput. Our ADC solution performs with the maximum resources available.

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Related Article

ADC Migration from Microsoft Azure to ZEVENET

Load balancing with Microsoft Azure comes in three categories; Azure Load balancer (Network load balancer), Application Gateway(Application Load balancer), and the Traffic Manager(DNS load balancer). Azure being cloud-native and able to serve traffic between on-premise infrastructure makes it ideal.

Read more about ADC comparison between ZEVENET and Microsoft Azure in this article: Microsoft NLB and ZEVENET Comparison.

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