Cloud Providers Tap Private Brokers for IPv4 Addresses
MIT recently announced it was selling about 8 million of its unused IPv4 addresses.
Microsoft Azure Stack Systems to Ship in September
Dell EMC, HPE, Lenovo, and Cisco are hardware partners.
NFV and SDN Only Slightly Offset Costs Needed for U.S. Fiber Investment
Virtualization makes repairs easier but does not eliminate labor costs.
Worth Reading: Moving Computing to the Edge (Again)
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Complexity and the Thin Waist
In recent years, we have become accustomed to—and often accosted by—the phrase software eats the world. It’s become a mantra in the networking world that software defined is the future. full stop This research paper by Microsoft, however, tells a different story. According to Baumann, hardware is the new software. Or, to put it differently, even as software eats the world, hardware is taking over an ever increasing amount of the functionality software is doing. In showing this point, the paper also points out the complexity problems involved in dissolving the thin waist of an architecture.
The specific example used in the paper is the Intel x86 Instruction Set Architecture (ISA). Many years ago, when I was a “youngster” in the information technology field, there were a number of different processor platforms; the processor wars waged in full. There were, primarily, the x86 platform, by Intel, beginning with the 8086, and its subsequent generations, the 8088, 80286, 80386, then the Pentium, etc. On the other side of the world, there were the RISC based processors, the kind stuffed into Apple products, Cisco routers, and Sun Sparc workstations (like the one that I used daily while in Cisco TAC). The argument Continue reading
Zscaler Security Integrates with Several SD-WAN Vendors
Zscaler's large data center footprint means it can provide security for enterprises worldwide.
ISOC Rough Guide to IETF 99: Internet Infrastructure Resilience
IETF 99 is next week in Prague, and I’d like to take a moment to discuss some of the interesting things happening there related to Internet infrastructure resilience in this installment of the Rough Guide to IETF 99.
Simple solutions sometimes have a huge impact. Like a simple requirement that “routes are neither imported nor exported unless specifically enabled by configuration”, as specified in an Internet draft “Default EBGP Route Propagation Behavior Without Policies”. The draft is submitted to IESG and expected to be published as a Standards Track RFC soon.
Andrei Robachevsky
We created a culture of visionaries. Here’s how you can, too.
We’re both honored and thrilled to announce that Cumulus Networks has been recognized as a “Visionary” in the Gartner Magic Quadrant for Data Center Networking. You can download this highly-anticipated report here, and learn about other major trends in the industry.
So, what’s it mean to be a visionary? According to Gartner, “Visionaries have demonstrated an ability to increase the features in their offerings to provide a unique and differentiated approach to the market. A visionary has innovated in one or more of the key areas of data center infrastructure, such as management (including virtualization), security (including policy enforcement), SDN and operational efficiency, and cost reductions.”
We couldn’t be happier to be recognized, and to us, it means our company vision has paid off. We’ve created a culture of visionaries through inquisitive, innovative and bold leadership, and these same traits are seen in both our philosophy and our technology. As more and more organizations embrace web-scale IT, we expect to keep pushing the technology forward — always striving for a better network.
With 96% of Gartner’s survey respondents finding open networking to be a relevant buying criterion, and with the adoption of white-box switching to reach 22% by 2020, it’s Continue reading
Headcount: The Latest in Hirings, Firings And Retirings — July 10, 2017
CenturyLink and Level 3 shift leadership; Intel cuts 140 workers.
Worth Reading: 5G and Internet Technology
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Show 347: Ethan & Greg Ask Me Anything Episode 3
Greg and Ethan continue the Ask Me Anything series with a new episode that includes career advice and technology conversations about SD-WAN vs. MPLS and the pros and cons of Open Network Linux. The post Show 347: Ethan & Greg Ask Me Anything Episode 3 appeared first on Packet Pushers.
Real-time DDoS mitigation using sFlow and BGP FlowSpec
The BGP FlowSpec extension (RFC 5575: Dissemination of Flow Specification Rules) provides a method of transmitting traffic filters that selectively block the attack traffic while allowing normal traffic to pass. BGP FlowSpec support has recently been added to sFlow-RT and this article demonstrates the new capability.
The following flowspec.js sFlow-RT script detects and blocks UDP-Based Amplification attacks:
var router = '10.0.0.141';
var id = '10.0.0.70';
var as = 65141;
var thresh = 1000;
var block_minutes = 1;
setFlow('udp_target',{keys:'ipdestination,udpsourceport',value:'frames'});
setThreshold('attack',{metric:'udp_target', value:thresh, byFlow:true});
bgpAddNeighbor(router,as,id,{flowspec:true});
var Continue reading