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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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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:

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Seeing Revenue Opportunities through the Data Forest: Monetization & Optimization Index

1I love football, especially the NFL. I grew up in Memphis — a city without a team. Oh, yes, we had WFL and USFL teams along the way. However, their owners could never convince the NFL to expand and let them in when the other leagues folded. We even hosted – though inhospitably – the once Houston Oilers for a year as their Nashville stadium was finished for the Titans. Now I am in the Boston area and am a big Patriots fan, but I watch games with any teams almost any time.

I was watching the Thursday night game the other night and saw the ad from Verizon Wireless for NFL Mobile. It’s only available from them. It reminded me that service providers are searching for new revenue opportunities as the market is undergoing a lot of change. They are seeing consolidation, new competitors and rapid technology shifts. At the same time revenues from traditional services are flattening out or, in a number of cases, starting to erode. An important challenge is determining what new services offer good growth opportunities.

There are lots of market opinions and reports that touch upon this issue. Yet, Read More »

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Public Safety Series: EOCs Harness Video to Improve Emergency Response

Last month, I had the opportunity to speak with PoliceOne about how Cisco solutions are helping to improve public safety in an area most people aren’t aware of: emergency operations centers. Emergency operations centers, or EOCs, are the center of disaster response efforts, helping to coordinate the first responders and distribute information to decision-makers in a chaotic emergency situation. EOCs facilitate communication across agencies to allow for coordinated efforts. And in an emergency situation, which is hectic and can be confusing, the clear communication and up-to-date information an EOC providers is vital to helping mitigate the disaster.

Since speed, accuracy and collaboration are all crucial to an EOC’s mission, the centers are constantly investing in new technologies to help them improve in these areas. In more recent years, one of the most effective collaboration technologies EOCs have harnesses is video. Why video? Video improves data gathering, which leads to more increased situational awareness, which ultimately allows for a more coordinated response.

The types of video systems vary. Digital signage, for one example, can be used to display information such as television streams, maps or graphs on a large screen visible by all in the EOC. This type of video system also can function as a display for group videoconference that allows agencies on the local, state and federal level to coordinate quickly and clearly.

A video collaboration tool like Cisco WebEx enables users to share the information on their computer screen while engaging in desktop-quality video chat, and Cisco TelePresence allows for high-quality online face-to-face conferencing. Using these technologies helps build relationships and ensure communication is clearer, as body language can be interpreted and expressions shared.

Read More »

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An Update On the Best Ever Bandwidth Balm: DOCSIS 3.1

Written By Todd McCrum, Director, Product Management, Cable Access business unit, Cisco

By now, the SCTE Cable-Tec Expo is in full swing, and, as (widely!) expected, the matter of DOCSIS 3.1 — the latest iteration of the Data Over Cable Service Interface Spec — is a front-of-mind topic for pretty much everyone here.


Why: Because it’s the next step, and a major one, for all multichannel video providers needing to stay ahead of the 50+ percent year-over-year growth in broadband consumption. (Which is everyone.) We’ve said it before, we’ll say it again: Nothing, in the history of consumable goods, has g Read More »

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