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Server Load balancing with NAT, using Nexus switches: ITD

Server load balancer (SLB) has become very common in network deployments, as the data & video traffic are expanding at rapid rate. There are various modes of SLB deployments today. Application load balancing with network address translation (NAT) has become a necessity for various benefits.

Cisco Intelligent Traffic Director (ITD) is a hardware based multi-terabit layer 4 load-balancing and traffic steering solution on the Nexus 5k/6k/7k/9k series of switches.

With our latest NX-OS Software 7.2(1)D1(1) (also known as Gibraltar MR), ITD supports SLB NAT on Nexus 7k series of switches.

In SLB-NAT deployment, client can send traffic to a virtual IP address, and need not know about the IP of the underlying servers. NAT provides additional security in hiding the real server IP from the outside world. In the case of Virtualized server environments, this NAT capability provides increased flexibility in moving the real servers across the different server pools with out being noticed by the their clients. With respect health monitoring and traffic reassignment, SLB NAT helps applications to work seamlessly without client being aware of any IP change.

ITD won the Best of Interop 2015 in Data Center Category.


ITD provides :

  1. Zero latency load-balancing.
  2. CAPEX savings : No service module or external L3/L4 load-balancer needed. Every Nexus port can be used as load-balancer.
  3. IP-stickiness
  4. Resilient (like resilient ECMP), Consistent hash
  5. Bi-directional flow-coherency. Traffic from A–>B and B–>A goes to same node.
  6. Monitoring the health of servers/appliances.
  7. Handles unlimited number of flows.

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Expanding Your Market Opportunities: the Capabilities You Can’t Afford to Ignore

1It’s a new world out there for all the service providers I get to talk with globally. Advances in technology are not only changing their customers’ behaviors, but they’re also disrupting established industries and business models. The result is a wealth of new opportunities—in existing markets and in new ones, within their footprint and beyond.

To compete in these markets, speed is everything. Whether you want to roll out new content, expand geographically, introduce new applications, or develop a business model for a new customer segment, you need to act fast. Success will be measured by how fast you can enter a market, establish a leadership position, and capture improved profitability early on.

You can’t afford to stand still.

You need to continue to innovate, dream up new things, and get them to your customers quickly. It’s OK if every effort isn’t successful. Quickly move on and repurpose any technology investments you may have made.

What if you get a little behind? You could find that much of what you hoped to gain is no longer available, attractive, or what you thought it would be. But don’t stop your innovation engine. Speed it up. If you’re not sure how, get a trusted partner.

What stands in your way?

The major challenge for any service provider today is Read More »

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Cisco and Microsoft Accelerate Cloud Providers’ Journey to the Hybrid Cloud

It can be a tough world out there for a cloud provider. You’re facing stiff competition from the big cloud players like Amazon and Google to deliver more flexible cloud services. But you have an edge that they don’t. Customers can trust you to deliver guaranteed reliability, security, and data sovereignty for business-critical applications in a way that pure public cloud providers can’t match.

To capitalize on that trust, you need to:

  • Offer a suite of public, private, and hybrid cloud solutions “as a service,” and bring them to market fast
  • Deliver business-class performance (scalability, flexibility, reliability and security, and more) against customer SLAs
  • Support key hybrid cloud capabilities like workload portability; and security, policy, and infrastructure management across clouds
  • Deliver globally while retaining data sovereignty

There are technologies available to do all of that, but typically you’d need to spend a lot of time and money knitting together hardware and software from multiple vendors. Then you’d have to test them to make sure they work together, and you could encounter a lot of complexity deploying and provisioning new services.

But there’s good news: Cisco and Microsoft have teamed up to create the next-generation architecture for cloud providers. It’s called the Cisco Cloud Architecture for the Microsoft Cloud Platform. And it’s going to make capturing the cloud opportunity a whole lot easier for you and your customers.


Introducing Cisco Cloud Architecture for the Microsoft Cloud Platform

Cisco Cloud Architecture for the Microsoft Cloud Platform combines Cisco’s world-class hardware with Microsoft’s enterprise-ready software to help you build comprehensive hybrid cloud solutions—faster, more easily, and more profitably. It’s part of a multi-year agreement between two of the world’s hybrid cloud heavyweights, Cisco and Microsoft, to deliver joint engineering, product development, and go-to-market support.

Cisco Cloud Architecture for the Microsoft Cloud Platform is the result of a shared vision about how the cloud needs to work for businesses. We know that if you’re going to deliver viable cloud solutions to your customers private, public, and hybrid clouds need to work together seamlessly. And they need to be a lot easier to deploy and operate.

Cisco Cloud Architecture for the Microsoft Cloud Platform maps application policy to infrastructure policy for Microsoft and third-party ISV applications. And it implements our Unified Data Center and Application Centric Infrastructure (Cisco ACI) with Microsoft Windows Azure Pack (WAP) as part of a complete, pre-tested and validated, ready-to-deploy cloud platform. So you can deploy new applications and services at DevOps speed, with lifecycle support from the partners you trust.

Read More »

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Service Providers Reduce Time to Market with Cisco Meraki

Imran Idrees headshotWritten By Imran Idrees, Senior Marketing Manager, Global SP & Enterprise, Cisco Meraki

Time to market. This is likely to be one of the top answers a service provider will cite when posed the question, “what is the most critical aspect of launching a new service?” And it’s not difficult to see why.

Time to market directly impacts a service provider’s bottom line: spend too long building an app for iOS 8 and half of your market will have migrated to iOS 9 by the time you launch. It’s not a perfect metaphor but you get the idea–delays in a launch result in missed revenue opportunity in the increasingly fast-paced tech world.

When you probe a little further, you find that time to market must be coupled with low cost of delivery and high customer experience for a successful launch.

So, enter Meraki – Cisco’s cloud networking solution and one of the company’s fastest growing groups with triple-digit YoY growth.


Meraki enables zero-touch provisioning meaning service providers can get end customer sites live almost immediately after receiving an order

The Meraki cloud-managed networking architecture is ideally positioned to support successful launches for service providers. Meraki dramatically reduces the Read More »

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South Korea’s SK Broadband Improving the User Experience with Cisco cBR-8

Igor-Dayen1-150x150Written By Igor Dayen, SP Product and Solutions Marketing

A year ago, SK Broadband announced the world’s first 10 Gbps Internet service at the 2014 ITU Plenipotentiary Conference. This innovative new service was 100 times faster than existing services, which routinely deliver download speeds of 100 Mbps.

Today SK Broadband continues to break new ground.   Just in time for the SCTE Cable-Tec Expo 2015, SK Broadband announced that they will deploy Cisco’s next-generation converged cable access platform (CCAP) across their national footprint. SK broadband chose Cisco’s cBR-8 as the platform to improve the user experience for their 4.7 M subscribers. In addition to supporting the rollout of multi-gigabit services the Cisco cBR-8 platform is a key part of SK Broadband‘s new network architecture.


As part of Cisco’s Evolved Programmable Network (EPN), the Cisco cBR-8 Read More »

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