Click here to close now.

SYS-CON MEDIA Authors: Liz McMillan, Esmeralda Swartz, Hovhannes Avoyan, Elizabeth White, Adrian Bridgwater

Related Topics: SDN Journal, Java, Microservices Journal, Linux, Virtualization

SDN Journal: Blog Feed Post

The Evolution of TCP

Like everything about the Internet, TCP keeps on changing

In 1974 a specification was developed that would, eventually, launch what we know of as "The Internet." That specification was TCP and though it is often overshadowed by HTTP as the spark that lit the fire under the Internet, without TCP HTTP wouldn't have a (transport) leg to stand on.

Still, it would take 10 years before the Internet (all 1000 hosts of it) converted en masse to using TCP/IP for its messaging. Once that adoption had occurred, it was a much shorter leap for the development of HTTP to occur and then, well, your refrigerator or toaster can probably tell you the rest at this point.

That makes TCP 40 years old this year. And despite the old adage you can't teach an old dog new tricks, TCP has continued to evolve right along with the needs of the applications that rely so heavily on its reliable transport mechanism.

Consider the additions, modifications, enhancements and changes that have been made just in the past 20 years or so. In total, there are well over 100 different RFCs associated with TCP that offer ways to improve performance, or reliability or support new technology like mobile networks and devices.

evolution of tcp

Like SSL and even HTTP, TCP must continue to evolve. Unlike the Internet in 1984 which boasted a mere 1000 hosts, the ISC domain survey puts the number of hosts in Jan 2013 at well over 1 billion. That means to move to some other transport protocol we'd have to coordinate, well, more than seems humanly possible. Especially given that doesn't count the switch required on the client side - which numbers in the 2.4 billion range according to Internet World Stats, which tracks growth of Internet users world wide.

What this means, practically, is that TCP must evolve because we can't just move to something else. Not without a long term transition plan and we see how well that's working for the move to IPv6, despite the depletion of IPv4 addresses.

So it shouldn't be a surprise when new, TCP-related technologies like MPTCP (Multipath TCP) are introduced to address challenges that continue to crop up as new devices, networks and applications pop up like dandelions in your front yard. Nor should we be surprised when support for such protocols, like SPDY before it, are offered to the market with a transitional approach, i.e. gateways and dual-stack supporting proxies.

The only real way to support the use of what would otherwise be a disruptive technology without disrupting the billions of hosts and users that communicate each and every day is to provide strategic transitional protocol points of control that enable transparent and (one hopes) seamless support as hosts and devices begin to support it.

TCP isn't going anywhere, it's too critical to the entire Internet at this point. But that doesn't mean it's static or inflexible. It is constantly evolving to meet the needs of the next generation of devices, networks and applications that rely upon it.

Read the original blog entry...

More Stories By Lori MacVittie

Lori MacVittie is responsible for education and evangelism of application services available across F5’s entire product suite. Her role includes authorship of technical materials and participation in a number of community-based forums and industry standards organizations, among other efforts. MacVittie has extensive programming experience as an application architect, as well as network and systems development and administration expertise. Prior to joining F5, MacVittie was an award-winning Senior Technology Editor at Network Computing Magazine, where she conducted product research and evaluation focused on integration with application and network architectures, and authored articles on a variety of topics aimed at IT professionals. Her most recent area of focus included SOA-related products and architectures. She holds a B.S. in Information and Computing Science from the University of Wisconsin at Green Bay, and an M.S. in Computer Science from Nova Southeastern University.

Latest Stories
SYS-CON Events announced today that Vitria Technology, Inc. will exhibit at SYS-CON’s @ThingsExpo, which will take place on June 9-11, 2015, at the Javits Center in New York City, NY. Vitria will showcase the company’s new IoT Analytics Platform through live demonstrations at booth #330. Vitria’s IoT Analytics Platform, fully integrated and powered by an operational intelligence engine, enables customers to rapidly build and operationalize advanced analytics to deliver timely business outcomes ...
SYS-CON Events announced today that Alert Logic, the leading provider of Security-as-a-Service solutions for the cloud, has been named “Bronze Sponsor” of SYS-CON's 16th International Cloud Expo® and DevOps Summit 2015 New York, which will take place June 9-11, 2015, at the Javits Center in New York City, NY, and the 17th International Cloud Expo® and DevOps Summit 2015 Silicon Valley, which will take place November 3–5, 2015, at the Santa Clara Convention Center in Santa Clara, CA.
SYS-CON Events announced today the DevOps Foundation Certification Course, being held June ?, 2015, in conjunction with DevOps Summit and 16th Cloud Expo at the Javits Center in New York City, NY. This sixteen (16) hour course provides an introduction to DevOps – the cultural and professional movement that stresses communication, collaboration, integration and automation in order to improve the flow of work between software developers and IT operations professionals. Improved workflows will res...
SYS-CON Events announced today that Plutora, Inc., the leading global provider of enterprise release management and test environment management SaaS solutions, will exhibit at SYS-CON's DevOps Summit 2015 New York, which will take place on June 9-11, 2015, at the Javits Center in New York City, NY. Headquartered in Mountain View, California, Plutora provides enterprise release management and test environment SaaS solutions to clients in North America, Europe and Asia Pacific. Leading companies ...
BroadSoft on Tuesday announced that it is a recipient of the 2014 Frost & Sullivan Market Leadership Award in the Hosted/Cloud Internet Protocol (IP) Telephony market for Latin America. According to Frost & Sullivan market research, the Latin America (LATAM) hosted/cloud Internet Protocol (IP) telephony market, including integrated unified communications and collaboration (UC&C) applications, is currently experiencing a rapid growth trajectory and is expected to exhibit a tenfold rise in annual...
SYS-CON Events announced today that Akana, formerly SOA Software, has been named “Bronze Sponsor” of SYS-CON's 16th International Cloud Expo® New York, which will take place June 9-11, 2015, at the Javits Center in New York City, NY. Akana’s comprehensive suite of API Management, API Security, Integrated SOA Governance, and Cloud Integration solutions helps businesses accelerate digital transformation by securely extending their reach across multiple channels – mobile, cloud and Internet of Thi...
SYS-CON Events announced today that CommVault has been named “Bronze Sponsor” of SYS-CON's 16th International Cloud Expo®, which will take place on June 9-11, 2015, at the Javits Center in New York City, NY, and the 17th International Cloud Expo®, which will take place on November 3–5, 2015, at the Santa Clara Convention Center in Santa Clara, CA. A singular vision – a belief in a better way to address current and future data management needs – guides CommVault in the development of Singular In...
Temasys has announced senior management additions to its team. Joining are David Holloway as Vice President of Commercial and Nadine Yap as Vice President of Product. Over the past 12 months Temasys has doubled in size as it adds new customers and expands the development of its Skylink platform. Skylink leads the charge to move WebRTC, traditionally seen as a desktop, browser based technology, to become a ubiquitous web communications technology on web and mobile, as well as Internet of Things...
SYS-CON Events announced today that SafeLogic has been named “Bag Sponsor” of SYS-CON's 16th International Cloud Expo® New York, which will take place June 9-11, 2015, at the Javits Center in New York City, NY. SafeLogic provides security products for applications in mobile and server/appliance environments. SafeLogic’s flagship product CryptoComply is a FIPS 140-2 validated cryptographic engine designed to secure data on servers, workstations, appliances, mobile devices, and in the Cloud....
SYS-CON Events announced today that FierceDevOps will exhibit at SYS-CON's 16th International Cloud Expo®, which will take place on June 9-11, 2015, at the Javits Center in New York City, NY. FierceDevOps keeps software developers and IT operations personnel updated on the latest news and trends around the rapidly evolving role of the traditional IT worker.
SYS-CON Events announced today that StorPool Storage will exhibit at SYS-CON's 16th International Cloud Expo®, which will take place on June 9-11, 2015, at the Javits Center in New York City, NY. StorPool is distributed storage software that allows service providers, enterprises and other cloud builders to run data storage on standard x86 servers, instead of using expensive and inefficient storage arrays (SAN).
SOASTA, the leader in performance analytics, today reported record growth of the CloudTest community, exceeding 30,000 registered users of the CloudTest platform in Q1 2015. SOASTA also announced widespread adoption of its Web and mobile testing solutions, with more than 1,600 customers completing more than 285,000 tests using CloudTest during the quarter. This rapid growth shows that DevOps-driven digital businesses are embracing a more continuous approach to testing, and CloudTest is meeting t...
SYS-CON Events announced today that QTS Realty Trust, one of the nation’s largest and fastest-growing providers of data center facilities and cloud services and a leader in security and compliance, will exhibit at SYS-CON's 16th International Cloud Expo®, which will take place on June 9-11, 2015, at the Javits Center in New York City, NY. QTS Realty Trust, Inc. (NYSE: QTS) is a leading national provider of data center solutions and fully managed services, and a leader in security and compliance...
ProfitBricks, the provider of painless cloud infrastructure for IaaS, today announced the release of a Node.js SDK written against its recently launched REST API. This new JavaScript based library provides coverage for all existing ProfitBricks REST API functions. With additional libraries set to release this month, ProfitBricks continues to prove its dedication to the DevOps community and commitment to making cloud migrations and cloud management painless. Node.js is an open source, cross-pl...
Today, IT is not just a cost center. IT is an enabler and driver of business. With the emergence of the hybrid cloud paradigm, IT now has increasingly more capabilities to create new strategic opportunities for a business. Hybrid cloud allows an organization to utilize multi-tenant public clouds, dedicated private clouds, bare metal hosting, and the associated support and services for the right use cases through an on-demand, XaaS model. This model of IT creates tremendous opportunities for busi...