tag:blogger.com,1999:blog-20390116545402988282024-03-08T03:48:22.915-08:00Dhiman Deb Chowdhury's BlogA blog on research based articles related to Technology Trend, Management Science, Organizational Behavior, Organizational Culture, Organizations, Corporations, Industrial Ecology, Corporate Sustainability, Sustainable Development, Economy and Politics.Dhiman Deb Chowdhuryhttp://www.blogger.com/profile/02611145451905470424noreply@blogger.comBlogger73125tag:blogger.com,1999:blog-2039011654540298828.post-13557661277668871822021-08-28T12:48:00.001-07:002021-08-28T12:49:39.177-07:005G OpenRAN and O-RAN SynchronizationIn my previous article, I discussed about the typical synchronization requirements in 5G xhaul network. To set the background, please peruse it at https://www.dhimanchowdhury.com/2021/08/11/the-critical-imperatives-of-time-synchronization-in-5g-networks/ .Traditionally, fronthaul is defined as the fiber-based connection in RAN infrastructure between the Baseband Unit (BBU) and Remote Dhiman Deb Chowdhuryhttp://www.blogger.com/profile/02611145451905470424noreply@blogger.com0tag:blogger.com,1999:blog-2039011654540298828.post-11871833619576587712021-08-12T12:21:00.005-07:002021-08-12T12:21:39.982-07:00The need for synchronization in 5G Networks Time synchronization is critical to 5G infrastructure and fundamental conduit of the network. It begins with the very spectrum on which the fifth generation (5G) RAN (Radio Access Network) depends upon. The 5G Radio spectrum uses TDD (Time Division Duplex) as the preferred method of spectrum usage. In TDD, a single frequency is shared for uplink and downlink communications. Given the Dhiman Deb Chowdhuryhttp://www.blogger.com/profile/02611145451905470424noreply@blogger.com0tag:blogger.com,1999:blog-2039011654540298828.post-43700751276759978472021-05-17T14:19:00.002-07:002021-05-17T14:19:47.681-07:00Enterprise 5G: Critical Factors and SolutionsI am hosting Enterprise 5G: Critical Factors and Solutions webinar on May 25th at 7 AM PST (3PM BST). This webinar is 2nd in a series: first one was about CBRS (Citizens Broadband Radio Service). If you have missed this webinar, you https://timing.trimble.com/video/new-video-gallery-post/ .This part of the webinar will extends the concept presented in previous webinar and discuss about Dhiman Deb Chowdhuryhttp://www.blogger.com/profile/02611145451905470424noreply@blogger.com0tag:blogger.com,1999:blog-2039011654540298828.post-66050028382898842020-05-15T14:35:00.000-07:002020-05-15T14:35:38.613-07:00Distributed High Precision Synchronization Design for 5G
As the fronthaul networks are upgraded to support higher bandwidth for LTE Advanced technologies and 5G, MNOs (Mobile Network Operators) are face with unparalleled challenges to comply with stringent requirements for the synchronization or sync plane across the network. We are witnessing paradigm shift in traditional telecom networks that rendering the transport networks in two Dhiman Deb Chowdhuryhttp://www.blogger.com/profile/02611145451905470424noreply@blogger.com0tag:blogger.com,1999:blog-2039011654540298828.post-51398971707484846832020-03-24T13:37:00.000-07:002020-03-24T13:38:15.223-07:00The dirty secretes of the dangerous microbe is about to be revealed: AI and Supercomputers are at work
Tech giants are thronging to help fight against coronavirus joining the growing numbers of educational and research institute. It is an unprecedented effort in which “corporate america” and research institutes are extending helping hands to government for the war on coronavirus. A consortium is formed in which IBM, Microsoft, Amazon and Google are now Dhiman Deb Chowdhuryhttp://www.blogger.com/profile/02611145451905470424noreply@blogger.com0tag:blogger.com,1999:blog-2039011654540298828.post-47958769680676104322020-03-21T12:40:00.000-07:002020-03-21T12:40:20.701-07:00IBM's Summit Joins the fight against COVID-19
The invisible microscopic enemy “COVID-19” is now got a fearsome opponent, “Supercomputer”. Computational Biology is about get a shot in the arm in fight against SARS-COV-2 (also known as COVID-19). The titleholder of world’s most powerful supercomputer, IBM Summit” has now joined the fight against COVID-19 in addition to crowdsource distributed supercomputing network from FoldingatHomeDhiman Deb Chowdhuryhttp://www.blogger.com/profile/02611145451905470424noreply@blogger.com0tag:blogger.com,1999:blog-2039011654540298828.post-27909289186451474752020-03-16T20:27:00.000-07:002020-03-16T20:27:45.069-07:00Contribute the power of your computer in the fight against COVID-19
Around the world countries are taking drastic measures to protect their citizens against a rare form of flu pandemic known as COVID-19 or (Corona Virus Disease 2019) [1]. While governments, researchers and health professionals working tirelessly to contain the pandemic and find cure against this rapidly spreading disease, you too can help by allocating your computer resources to towards Dhiman Deb Chowdhuryhttp://www.blogger.com/profile/02611145451905470424noreply@blogger.com0tag:blogger.com,1999:blog-2039011654540298828.post-35946332071552527072019-11-15T14:31:00.000-08:002019-11-15T14:32:22.717-08:00How to build a Zero trust Networks?
You heard it right, “Zero Trust”. Unlike human being who can innately identify stranger from friend and appropriately facilitate trust, network infrastructure is incapable of distinguishing friend from foe. It requires well planned initiatives, tools and mechanisms to enable anomaly detection capability in a network infrastructure.
In traditional deployment, an innate trust is applied to Dhiman Deb Chowdhuryhttp://www.blogger.com/profile/02611145451905470424noreply@blogger.com0tag:blogger.com,1999:blog-2039011654540298828.post-53365466957341709742019-08-19T16:22:00.001-07:002019-08-19T16:22:20.137-07:00Disaggregation brightens the prospect for Edge
Today,
cloud and virtualization are increasingly pushing the need to abolish
hierarchical construct of network to a simpler and dynamic flat service-oriented
infrastructure. And, it is for good reason: create non-blocking architecture,
reduce cost and complexity and improve latency and manageability of the network.
As network flattened, tiered notion of aggregation blends away to form two Dhiman Deb Chowdhuryhttp://www.blogger.com/profile/02611145451905470424noreply@blogger.com0tag:blogger.com,1999:blog-2039011654540298828.post-43383845898086159302019-07-09T16:36:00.000-07:002019-07-09T16:36:51.081-07:00768K Day - Internet Doomsday? Is it real?
There is an ominous rumbling in the internet about 768K
day, some even termed it internet doomsday others called it “Y2K” of internet.
The fear is justified given the experience of wide spread internet outage during
512K day when internet BGP table size exceeded 512,000 routes. The 512K day
caused havoc and many routers simply exhausted of TCAM (Ternary
content-addressable memory) size andDhiman Deb Chowdhuryhttp://www.blogger.com/profile/02611145451905470424noreply@blogger.com0tag:blogger.com,1999:blog-2039011654540298828.post-29077736575646649142019-03-23T16:48:00.001-07:002020-03-21T12:50:20.327-07:00Breaking the barrier to Service: Delivering webscale performance at Edge
Today, most businesses don’t need any convincing argument about how digital transformation can enhance their agility. The pressing question is how to onboard more and more consumers and how to provide improve service through differentiated offerings.
Given the pivotal role of networks in this era of cloud-powered enterprise, low-cost-per bit is central to creating digital transformation. Dhiman Deb Chowdhuryhttp://www.blogger.com/profile/02611145451905470424noreply@blogger.com0tag:blogger.com,1999:blog-2039011654540298828.post-91979717744085231882018-06-22T14:27:00.000-07:002018-06-22T14:27:23.110-07:00Incredible speed and the fat pipe: 400 Gigabits Ethernet
It is insanely fast, even a maverick will agree! And, it is equally fattish than the all known preceding transports technologies given that a 1 RU switch can now pack a whopping 12.8 Tbps bandwidth: get the picture?
Welcome to the world of terabit transport!
Target for massive aggregation in data center and service provider networks, 400 Gigabit Ethernet (400GbE) was approved as IEEE802.3bsDhiman Deb Chowdhuryhttp://www.blogger.com/profile/02611145451905470424noreply@blogger.com0tag:blogger.com,1999:blog-2039011654540298828.post-14219378925766885142018-02-07T15:51:00.003-08:002018-06-25T13:14:21.714-07:00Facts behind the Myth of Whitebox Open Networking: A Reality Check
I begin with an assumption that you are somewhat familiar with “whitebox” term as it relates to networking gears and cognizant of its trend. For those needing a brush up, please read my earlier article https://www.linkedin.com/pulse/bare-metalwhite-box-solutions-open-hyperscale-data-center-chowdhury/ .
The term “whitebox” and “open networking” to some extent synonymous, both Dhiman Deb Chowdhuryhttp://www.blogger.com/profile/02611145451905470424noreply@blogger.com0tag:blogger.com,1999:blog-2039011654540298828.post-63523338651165615822017-10-01T15:53:00.000-07:002018-06-25T13:17:16.590-07:00Wireless-fiber convergence: Ethernet at Fronthaul creating new possibilities for 5G and beyond
Gothenburg is a port city nestled within the unique Kattegat (a sea area considered neither North Sea nor the Baltic Sea, a contradiction in itself) nearly 290 miles northwest of Stockholm, capital of Sweden. The days are gloomy here specifically in the fall season and in the winter, fortunate to have a glance of sun if you are lucky yet the city has much to offer. Gothenburg’s panoramic Dhiman Deb Chowdhuryhttp://www.blogger.com/profile/02611145451905470424noreply@blogger.com0tag:blogger.com,1999:blog-2039011654540298828.post-32059110581544273482017-05-09T14:36:00.000-07:002017-05-09T14:36:21.273-07:00Network Transformation is in the offing: Does disaggregation model help?
One of the fascinating aspects in my job is understanding
how some of world’s largest networks will deploy Open networking platforms. It
is this continuous learning that keeps me passionate about what I do. When I first use “open networking” term,
people wondered what it may entails. Some
thought of it is all about using “open source” software and the other thought
of it as another Dhiman Deb Chowdhuryhttp://www.blogger.com/profile/02611145451905470424noreply@blogger.com0tag:blogger.com,1999:blog-2039011654540298828.post-5617998346446569322016-12-27T16:50:00.000-08:002016-12-27T16:50:20.301-08:00Innovation at workplace
Today,
innovation is viewed as the main determinant of organizational success and
competitiveness. There is no argument about the necessity of innovation
in each organization but question is how to foster it. I have earlier published
few articles including a behavioral connotation for organizations to foster
innovation behavior at individual and group level. You can download one of the
Dhiman Deb Chowdhuryhttp://www.blogger.com/profile/02611145451905470424noreply@blogger.com0tag:blogger.com,1999:blog-2039011654540298828.post-34463793712801402272016-10-04T11:25:00.001-07:002016-10-04T11:25:35.616-07:00Network Visibility using BroadviewDhiman Deb Chowdhuryhttp://www.blogger.com/profile/02611145451905470424noreply@blogger.com0tag:blogger.com,1999:blog-2039011654540298828.post-9181813716261606462016-09-23T10:10:00.001-07:002016-09-23T10:10:02.959-07:00You tube live streaming: Network Visibility for Data Center NetworksDhiman Deb Chowdhuryhttp://www.blogger.com/profile/02611145451905470424noreply@blogger.com0tag:blogger.com,1999:blog-2039011654540298828.post-63879485002875050382016-08-12T15:28:00.001-07:002016-08-23T22:38:35.835-07:00SDN API and Protocols: ForCES (Forwarding and Control Element Separation)
This article is part of my “Network Virtualization 101” series. For other articles in this series, please visit http://www.dhimanchowdhury.com or my blog athttp://www.dhimanchowdhury.blogspot.com .
SDN (Software Defined Networking) is much of a buzz word now a days; for some it is simply decoupling of control and data plane but for others, it is an encompassing abstraction forDhiman Deb Chowdhuryhttp://www.blogger.com/profile/02611145451905470424noreply@blogger.com0tag:blogger.com,1999:blog-2039011654540298828.post-27947111350667764782016-04-16T21:26:00.001-07:002016-04-16T21:26:18.247-07:00Network Virtualization 101: SDN APIs and Protocols
This article is part of my SDN/network virtualization series “Network Virtualization 101”. To view other articles in this series and/or learn more about SDN and network virtualization, please visithttps://www.linkedin.com/today/author/0_1J4WrxUu5ZhIszQwsUUcg_?trk=prof-sm or http://www.dhimanchowdhury.blogspot.com .
From the simplistic purview, SDN (Software Defined Networking) Dhiman Deb Chowdhuryhttp://www.blogger.com/profile/02611145451905470424noreply@blogger.com0tag:blogger.com,1999:blog-2039011654540298828.post-2347133261154862892015-12-18T17:36:00.000-08:002015-12-18T17:36:35.483-08:00Open Networking Webinar
These days there is no shortage of buzzwords when it comes to internetworking theme: open networking, SDN, NFV and Network virtualization just to name few. These alphabets soup has rendered many confused as to what all these mean and how these relate to designing, implementing and maintaining networks.
In this conversational style webinar, we explained what “open networking” is and how buzz Dhiman Deb Chowdhuryhttp://www.blogger.com/profile/02611145451905470424noreply@blogger.com0tag:blogger.com,1999:blog-2039011654540298828.post-28101593887045005842015-12-12T16:36:00.001-08:002015-12-12T16:37:26.386-08:00Network Virtualization 101: NFV & VNF
Copyrights © Dhiman Deb
Chowdhury, 2015. All rights reserved.
In the previous articles ( http://www.dhimanchowdhury.blogspot.com
), I discussed how the need to share resources led to gradual development of
technologies concerning network programmability and virtualization. I am
hopeful that readership is now conversant on the notion of network
virtualization (NV) and SDN and how network Dhiman Deb Chowdhuryhttp://www.blogger.com/profile/02611145451905470424noreply@blogger.com0tag:blogger.com,1999:blog-2039011654540298828.post-20189758637388947612015-09-03T15:53:00.000-07:002015-09-03T15:53:29.473-07:00Network Virtualization 101: The NV
In previous article, I have discussed about historical
perspective of Network virtualization ( http://www.dhimanchowdhury.blogspot.com/2015/07/network-virtualization-101-nve-overlay.html
): how the need to share resources and induce flexibility and programmability
in network environment led to the series of research undertakings, e.g. MBone
project (Almeroth, C.K., 2000) – an experimental Dhiman Deb Chowdhuryhttp://www.blogger.com/profile/02611145451905470424noreply@blogger.com0tag:blogger.com,1999:blog-2039011654540298828.post-10356300454115630542015-07-29T15:01:00.001-07:002015-07-29T15:01:41.483-07:00Network Virtualization 101: NVE, Overlay & SDN
Note: Material furnished herein are copyright protected. © 2015: Dhiman Deb Chowdhury. All Rights Reserved.
In previous article, I have discussed about historical
perspective of system virtualization ( http://dhimanchowdhury.blogspot.com/2015/07/network-virtualization-101-prelude.html
): how the need to integrate IBM’s disparate systems to share resource and
enable multitasking ledDhiman Deb Chowdhuryhttp://www.blogger.com/profile/02611145451905470424noreply@blogger.com0tag:blogger.com,1999:blog-2039011654540298828.post-50224815571823746782015-07-09T17:45:00.001-07:002015-07-09T17:46:41.386-07:00Network Virtualization 101: The Prelude
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Note: The material furnish in this section is copyright protected and in parts taken from my Cloud Technology Handbook (writing in progress).
Being a technology professional in the networking industry, I have witnessed triumph and demise of many technologies and the entities that pioneered those technologies. Dhiman Deb Chowdhuryhttp://www.blogger.com/profile/02611145451905470424noreply@blogger.com1