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din opens in new window linkedin like this like loading 25 years of production ipv6 in esnet 2024 08 02 michael sinatra 3 comments twenty five years ago saturday on august 3 1999 ipv6 history was made esnet was issued its ipv6 production netblock which is still in use today the american registry for internet numbers arin assigned the very first block out of its 2001 400 23 allocation and since then esnet has numbered its production ipv6 services out of 2001 400 32 the netblock would have originally been a 35 later increased to 32 automatically by the rirs this was the first production ipv6 address allocation in north america and possibly the world akira kato a global internet pioneer member of the wide project and a professor at keio university notes that the wide project did receive the first allocation in the asia pacific region 8 days after the allocation of esnet s space wide along with its sub project kame would go on to develop critical ipv6 software some of which is still in use today wide continues to have the numerically lowest globally routable production ipv6 address 2001 200 32 ipv6 is the current generation internet protocol and it has been in an extended process of supplanting the now legacy ipv4 developed in the early 1990s it was adopted by esnet as part of a larger effort to lead by example by embracing cutting edge protocols and technologies ipv6 s massive address space was originally seen as a way of effectively saving the internet from potential collapse due to the exhaustion of ipv4 s more limited address space while mechanisms such as network address translation nat were developed to extend ipv4 s life esnet quickly recognized the drawbacks that these mechanisms created especially in the high performance computing and networking environments esnet supported hence the move to ipv6 was an obvious one for esnet and the organization encouraged other national labs to follow suit before production esnet s involvement in ipv6 predates our effective move to production by at least three years as we noted in 2021 bob fink tony hain and becca nitzan all esnet staff at the time circa 1996 spearheaded early ipv6 adoption processes and their efforts reached far beyond esnet and the department of energy doe the trio were instrumental in establishing a set of operational practices and testbeds under the auspices of the internet engineering task force the body where ipv6 was standardized and this led to the development of a worldwide collaboration known as the 6bone 6bone was a set of tunnels that allowed ipv6 islands to be connected forming a global overlay network more importantly it was a collaboration that brought together commercial and research networks vendors and scientists all with the goal of creating a robust internet protocol for the future in addition to 6bone esnet was one of three principals that created and managed 6tap one of the first ipv6 internet exchanges collocated at the starlight research and education network exchange in chicago 6tap represented a collaboration between esnet and canadian partners canarie and viagenie moving to native ipv6 with experience gained in the 6bone and 6tap projects esnet staff with other partners in the internet began to advance the cause of the creation of a production ipv6 network the goal would ultimately be a native ipv6 network no overlays no tunnels this would require new blocks of address space to be delegated to the still nascent regional internet registries at the time arin in the americas apnic in asia pacific and ripe ncc in europe and the middle east africa those rirs would need policies and procedures for allocating ipv6 address space but first they needed to get their own blocks from the internet assigned numbers authority iana after nearly two years of deliberation and much input from esnet staff to bodies like the ietf and rirs iana made the assignments on july 14 1999 after much discussion concerning the policy guidelines for the deployment of ipv6 addresses in addition to the years of technical development done throughout the internet community the iana has delegated the initial ipv6 address space to the regional registries in order to begin immediate worldwide deployment of ipv6 addresses we would like to thank the current regional internet registries rir for their invaluable work in the construction of the policy guidelines which seem to have general consensus from the internet community we would also like to thank the efforts of the ietf community and the support of the iab in making this effort a reality the stage was now set for esnet to receive the first public production ipv6 addresses and help usher in a new era for the internet thus while tony hain and bob fink were busy chairing ietf working groups and writing rfcs becca nitzan began building a production ipv6 network within esnet nitzan configured her dec alpha workstation hershey es net to be dual stack possibly the first workstation in north america if not the world to be on a production ipv6 network hershey es net a dec alpha personal workstation is reputed to be the first computer on the production ipv6 network it still runs openbsd now instead of digital unix and also serves as a valuable foot rest and space heater for the author esnet continues to maintain hershey s historic eui64 based ipv6 aaaa entry in the public es net domain 2008 present new generation s take over eventually hain fink and nitzan all moved on from esnet either into the private sector or retirement but a new generation took over to continue ipv6 development in the department of energy s research network kevin oberman carried the torch of ipv6 evangelist in esnet promoting the protocol and educating doe sites about the virtues of the new technology michael o connor developed the first tools for network monitoring and topology discovery in esnet and made them exclusively run over ipv6 when it came time for oberman to retire michael sinatra transferred from uc berkeley to esnet to become ipv6 and dns subject matter expert he proceeded to unite ipv6 and ipv4 routing under a single interior routing protocol developed tools to manage the ipv6 side of esnet s rich peering infrastructure continued educating research and education and government networks on the risks of not adopting ipv6 and is currently involved in building a segment routed network capable of carrying both ipv4 and ipv6 traffic while only using ipv6 eliminating ipv4 for the control plane nick buraglio joined esnet in 2013 and has continued in the tradition of hain and fink spearheading doe and other us government agency adoption of ipv6 and more importantly abatement of ipv4 within those agencies he is now a co chair of the ipv6 operations v6ops internet engineering task force ietf working group and continues to advance and evangelize for the protocol buraglio paul wefel dylan jacob and john j christman worked to design and construct an ipv6 only management plane for the esnet6 network requiring substantial cooperation from vendors some of whom had not previously had any requirements for ipv6 only management capabilities it has allowed esnet to inch closer to achieving the us government s ipv4 abatement mandates dale carder joined esnet in 2016 and has recently worked on an innovative use of the ipv6 packet header flow label field as a mechanism to mark ipv6 traffic based on the scientific project that is generating and receiving the traffic this is providing valuable information on how for example the various large hadron collider research projects are using the network and the relative network capacity demands they are producing going into the second quarter century of production ipv6 in esnet ipv6 is no longer a core component of esnet s services it is the core component nick and i continue to work together in our respective roles along with other esnet engineers to advance the protocol both from a strategic perspective and in the day to day operations of our organization as we move into another new era one characterized by the movement away from dual stack to an ipv6 only world expect nick myself and others to continue our work in bringing the internet beyond ipv4 in the next few weeks i plan to revisit my risks of not deploying ipv6 in an effort to determine what risks have been realized and what have been mitigated over the past dozen years we will also be doing an overview of the most recent lhc data challenge with a focus on ipv6 s nearly exclusive role as the data transfer substrate for this major high energy physics project nick will continue to advance ipv6 operations via his role in the ietf members of esnet s data centers and facilities team are inching closer to ipv6 only data centers and zero touch provisioning ztp my hope is that we will make as much progress in the next five years as we have in the previous twenty five regardless esnet s role in the history of ipv6 has prepared us well to lead us into a bright ipv6 only future share this share on x opens in new window x share on facebook opens in new window facebook email a link to a friend opens in new window email share on linkedin opens in new window linkedin like this like loading why doesn t esnet support iperf3 on windows 2024 05 01 2024 05 01 esnetcomms by bruce mah esnet planning architecture group a recent post on microsoft s networking blog clickably titled three reasons why you should not use iperf3 on windows caused a mini kerfuffle in the world of network speed measurement and a lively discussion in the comments section although the post has since been updated with some important disclaimers the no 1 answer to the question being that esnet has never and still does not support windows for iperf3 esnet s iperf3 team wanted to set the record straight on a few additional points publicly for anyone who might still be confused a little background on esnet and iperf3 esnet www es net provides scientific networking services to support the u s department of energy and its national laboratories user facilities and scientific instruments complex we developed iperf3 as a rewrite of iperf2 in order to be able to test the end to end performance of networks doing large transfers of scientific data the primary consumer of iperf3 is the perfsonar measurement system which is widely used in the research and education r e networking community iperf3 is of course also usable as a standalone tool which is one of the reasons it s been released separately on github many large corporations including spacex s starlink and comcast are using it to measure their own networks it has been downloaded from github nearly 100 000 times according to a third party tool this does not measure the other ways that users could acquire iperf3 work on iperf3 started in 2009 the first commit was an import of the iperf 2 0 sources with the first public release in 2013 the commit history and the original iperf2 project maintainer will confirm that iperf3 was intended essentially as an iperf2 replacement thus there was a time during which iperf2 was basically abandonware fortunately bob mcmahon from broadcom has assumed the maintainership of this code base and is actively developing for it linux vs other operating systems most of the high performance networking that we see in the r e networking space comes from linux hosts so it was natural that this is the main supported platform supporting iperf3 on freebsd and macos has ensured some level of cross platform support at least to the extent of other unix and unix like systems while we have had many requests to make iperf3 work under windows we didn t have the developer skills or resources to support that and we still don t the fact that iperf3 works on windows at all is a result of code contributions from the community which we gratefully acknowledge there are many facets to end to end application network performance these include of course routers switches nics and network links but also the end host operating system runtime libraries and the application itself to that extent iperf3 does characterize the performance of a certain set of applications designed for unix but trying to run with some emulation or adaptation in a windows environment we completely agree that this may not provide the highest throughput numbers on windows compared to a program that uses native apis iperf3 and windows esnet is happy to see that iperf fr has removed the old obsolete binaries from their web site this is a problem that can affect any open source project not just iperf3 as mentioned earlier we ve generally accepted patches for iperf3 to run on windows or other not officially supported operating systems such as android ios or various commercial unixes these changes have allowed windows hosts to run iperf3 tests apparently with sub optimal performance against any other instance of iperf3 regardless of operating system if there s interest on the part of microsoft in making a more windows friendly version of iperf3 we d welcome a conversation on that topic feel free to reach out to me bruce mah anytime share this share on x opens in new window x share on facebook opens in new window facebook email a link to a friend opens in new window email share on linkedin opens in new window linkedin like this like loading canarie esnet géant and internet2 unveil highest capacity transoceanic connectivity for research and education 2024 03 17 2024 04 25 esnetcomms the advanced north atlantic ana collaboration has added three 400 gbps spectrum circuits between exchange points in the u s u k and france boosting ana s combined trans atlantic network capacity to 2 4 tbps read more share this share on x opens in new window x share on facebook opens in new window facebook email a link to a friend opens in new window email share on linkedin opens in new window linkedin like this like loading new consortium metranova to create a measurement and analysis toolbox for research and education networks worldwide 2024 02 27 2024 04 25 esnetcomms leading research and education r e networking organizations energy sciences network esnet géant globalnoc at indiana university internet2 and texas advanced computing center tacc have joined forces to form metranova a consortium for advancing network observation visualization and analysis metranova s goal is to develop and disseminate common network measurement and analysis tools tactics and techniques that can be applied throughout the global r e community read more share this share on x opens in new window x share on facebook opens in new window facebook email a link to a friend opens in new window email share on linkedin opens in new window linkedin like this like loading esnet s oscars software automation system gets major upgrade to meet future complex data challenges 2024 02 09 2024 04 25 esnetcomms the software automation system oscars one of the key innovations powering esnet s high speed network for department of energy funded scientific research has just g...
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