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Making Programmable Networks Easier to Achieve (and for Free!)

making programmable networks easier to achieveThe “P” in EPN stands for “Programmable,” as in “Evolved Programmable Network” and Cisco has just made the “P” easier to achieve to help drive services to the cloud. We’ve now contributed Basic ConfD, a free version of our powerful ConfD by Tail-f management agent software to the networking industry. Tail-f joined Cisco last summer and this announcement demonstrates Cisco’s commitment to not only embrace but also drive open standards in the best interest of the entire ecosystem. Read More »

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Open Standards, Open Source, Open Loop

As the IETF (Internet Engineering Task Force) meets in Hawaii (IETF 91), the unavoidable question for both participants and observers is whether a Standards Development Organization (SDO) like the IETF is relevant in a rapidly expanding environment of Open Source Software (OSS) projects.

For those new to the conversation, the open question is NOT whether SDOs should exist.  They are a political reality inexorably tied to trade policies and international relationships.  The fundamental reason behind their existence is to avoid a communications Tower of Babel (with the resulting economic consequences) and establish governance over the use of global commercial and information infrastructure (not just acceptable behavior, but the management of resources like addressing as well).  Rather, the question is about their role going forward in enabling innovation. 

SDO Challenges

SDOs (like the IETF) have to evolve their processes Read More »

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OpenDaylight Unleashes Hydrogen to the Masses

The OpenDaylight Project today announced that its first open source software release Hydrogen is now available for download. As the first simultaneous code release cross-community it has contributions across fifty organizations and includes over one million lines of code. Yes. ODL > 1MLOC. For those of you interested that’s approximately two hundred and thirty man-years of work completed in less than twelve months.

It was around this time last year that the media started to pick up on a few rumors that something may be in the works with software-defined networking and controllers. I remember our first meeting at Citrix where the community started to collaborate on The OpenDaylight Project and come to common ground on how to start something this large. We had multiple companies and academics in the room and many ideas of where we wanted this project to go but there was one thing we had in common: the belief and vision to drive networking software innovation to the Internet in a new way and accelerate SDN in the open; transparently and with diverse community support. Each of us had notions of what we could bring to the table, from controller offerings to virtualization solutions, SDN protocol plugins and apps to solve IT problems. Over two days at Citrix we looked at things from a customer perspective, a developer perspective and ultimately and arguably the most important, a community perspective. From there The OpenDaylight Project emerged under the Linux Foundation. As I look back I want to applaud and thank the companies, partners, developers, community members and the Linux Foundation for driving such a large vision from concept to reality in less than twelve months, which is an incredible feat in itself.

Hydrogen is truly a community release. Use cases span across enterprise, service provider, academia, data center, transport and NfV. There are multiple southbound protocols abstracted to a common northbound API for cross-vendor integration and interoperability and three editions have been created to ensure multi-domain support and application delivery as well as deployment modularity and flexibility for different domain-specific configurations. These packages have a consistent environment yet are tailored to domain and role-based needs of network engineers, developers and operators.

  • The Base Edition, which includes a scalable and multi-vendor SDN protocol based on OSGi, the latest (and backward compatible) OpenFlow 1.3 Plugin and Protocol Library, OVSDB, NetConf/Yang model driver SDN and Java-based YANG tooling for model-driven development.
  • The Virtualization Edition (which includes the Base Edition) and adds Affinity Metadata Service (essentially APIs to express workload relationships and service levels), Defense4All (DDoS detection & mitigation), Open DOVE, VTN, OpenStack Neutron NorthBound API support and a virtual tenant network offering.
  • The Service Provider Edition (again, including the Base Edition) that also offers the Metadata Services and Defense4All but includes BGP-LS and PCEP, LISP Flow Mapping and SNMP4SDN to manage routers, gateways switches.

More information can be found on the website with regards to the releases and projects themselves.

I want to stress the importance of how well the vision has been delivered to date. I’ve been involved in multiple standards-bodies and in open source discussions in the past but this is truly one of the largest undertakings I’ve seen come together in my entire career. OpenDaylight developers have been coding day and night to get this release out the door and it’s amazing to see the collaboration and coherency of the team as we unite to deliver on the industry’s first cross-vendor SDN and NfV Platform. In addition and frequently not mentioned is that many of the protocols listed in the Editions above are also standardized at organizations like the IETF during the same period. Code and specs at the same time. It’s been a long time since rough consensus and running code has been the norm.

Over here at Cisco we’re fully committed to OpenDaylight. We’re currently using it as a core component in our WAN Orchestration offering for service providers to allow intelligent network placement and automated capacity and workload planning. The ACI team (formerly Insieme) collaborated with IBM, Midokura and Plexxi to create a project in OpenDaylight that creates a northbound API that can set policy and be used across a wide range of network devices. And of course we’re bringing components of the OpenDaylight codebase into our own controllers and ensuring application portability for customers, partners and developers alike. From this I would expect to see more code donations going into the community moving forward as well. We made several announcements last week about our campus/branch controller that includes OpenDaylight technology.

At the end of the day an open source project is only as strong as its developers, its community and its code. As we as a community move forward with OpenDaylight I expect it to become stronger with more members joining with new project proposals as new code contributors coming onboard from different industries as well. As I look at our roadmap and upcoming release schedule I’m pumped for what’s next and so happy the community has catalyzed a developer community around networking.

Please do visit the site, download the code and take Hydrogen for a test-drive. We want to hear feedback on what we can make better, what features to add or how you’re going to utilize it. Moreover, we’d love you to participate. It’s a kick-ass community and I think you’ll have fun and the best part; you’ll see your hard work unleashed on the Internet and across multiple communities too.

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The Yang of Open Standards, the Yin of Open Source

Every time I think about the relationship between Open Standards and Open Source I am reminded of a fascinating talk by Paul Saltman, a biochemist from Caltech, invited to speak to a Chinese forum years ago, about national food policy for China, later published in Caltech’s Engineering & Science, titled The Yang of Nutrition…The Yin of Food.

I am not a nutritionist, or biochemist, or expert on food – though in more than one occasion I’ve been known to venture in the art – but I do know a little about open standards and open source – let’s just say enough to be sentient of the wholeness and synergy in which these opposites attract and coexist, perhaps not unlike The Cathedral and the Bazaar.

By the very nature of our industry, open standards are not just important, they are indispensable, the foundation upon which every internetworking protocol is based, the pre-requisite of interoperability, so naturally we take open standards seriously, the yang side, as it were.  But what is often overlooked, just as the case with the yin of food in Saltman’s parallel, is the yin of open source, some of which is in fact the implementation, the other side, or yin as it were, of these open standards and more, with things like jabber or tigerstripe just to name a few.  We’d like to tell you more about what we’re doing with these and other open projects, soon to be covered in this blog.

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