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CCIE : ITD and RISE in CCIE Data Center

ITD and RISE are now part of CCIE Data Center:

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

Domain Written Exam (%) Lab Exam (%)  
1.0 Cisco Data Center L2/L3 Technologies 24% 27% Show Details
2.0 Cisco Data Center Network Services 12% 13% Hide Details
2.1 Design, Implement and Troubleshoot Service Insertion and Redirection

  • 2.1.a Design, Implement and Troubleshoot Service Insertion and Redirection for example LB, vPATH, ITD, RISE

2.2 Design, Implement and Troubleshoot network services

  • 2.2.a Design, Implement and Troubleshoot network services for example policy drivenL4-L7 services
3.0 Data Center Storage Networking and Compute 23% 26% Show Details
4.0 Data Center Automation and Orchestration 13% 14% Show Details
5.0 Data Center Fabric Infrastructure 18% 14% Show Details
6.0 Evolving Technologies 10% N/A Show Details


To learn about RISE (Remote Integrated Services Engine), please see:

To learn about ITD (Intelligent Traffic Director), please see:


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Network Automation for DevOps

I am only going to say this once.

I am only going to say this once.

This is our third episode for what I have personally termed the ‘NX-OS’ exposed series.   The first two have been about programmability.  Exploring the exposed interfaces, Object Models, the NX Tool kit and more of the NX-API framework that enables DevOps teams to respond more quickly. [TWTV 176 – Open NX-OS Programmability and TWTV 180 – NX-API Rest/Object Models].


Today’s show dives into the automation piece.  That simultaneously higher level conversation covering what an organization really cares about, why IT exists and how we finally brought data center switching into the automate-able value chain.

Network automation is an integral part of the overall infrastructure automation. Yet, it has been largely left out of the DevOps movement.

Automation is central to achieving a truly agile datacenter.  DevOps has been the cultural movement working towards the realignment of disparate function involved in the IT value stream.  It is the modern, ‘digital,’ equivalent of an optimized manufacturing line.

Read More »

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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.

Documentation, slides, videos:

Email Query or

Connect on twitter: @samar4

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Cisco @ Strata-Hadoop World Wrap-Up: If we can make it there, we’ll make it anywhere…



We made it…another successful Strata-Hadoop World show for Cisco’s Big Data & Analytics team. This year we had a few unique challenges – the Pope was leaving town when we arrived; then the UN General Assembly made traffic a bit more difficult than normal; finally towards week’s end the threat of ‘The Hurricane’ for the East Coast…

Cisco had an active presence at Strata this year with several newsworthy and interesting highlights:

• Introducing Cisco Data Preparation. Cisco Data Preparation (Data Prep) makes it easy for non-technical business analysts to gather, explore, cleanse, combine and enrich the data that fuels analytics. Read Kevin Ott’s Data Prep blog here. Read More »

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Capitalizing on Your Evolved Programmable Network through Faster and More Efficient Cloud Services Delivery

SDN (Software Defined Networking) and NFV (Network Functions Virtualization) technologies are expected to help Service Providers gain new efficiencies and previously unimagined speed and agility in cloud services delivery so they can seize new business opportunities and achieve continued growth. Specifically, SDN in the data center helps you abstract services and applications from the complexities of the underlying network, making services operations drastically simpler. However, this abstraction layer, referred to as the SDN overlay, must meet very specific requirements to support today’s dynamic cloud environments.

Using a mobile device

I’d like to briefly discuss a recently released product, the Cisco Virtual Topology System (VTS), a high performance SDN overlay system designed to meet these requirements.

VTS is an important component of Cisco’s services management and orchestration software portfolio, aligned with Cisco’s Open Network Architecture and the Cisco Evolved Services Platform, a flexible and agile SP cloud service delivery platform. There are a number of capabilities of VTS Read More »

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