Space internet service closer to becoming reality

Test results from recent Low Earth Orbit internet satellite launches are starting to come in—and they're impressive.OneWeb, which launched six Airbus satellites in February, says tests show throughput speeds of over 400 megabits per second and latency of 40 milliseconds. Further, the future internet service provider (ISP) says a satellite re-alignment will offer southern U.S. coverage sooner than originally thought.Also read: The hidden cause of slow internet and how to fix it Internet service for the Arctic Arctic internet blackspots above the 60th parallel, such as Alaska, will be the first to benefit from OneWeb’s partial constellation of Low Earth Orbit (LEO) broadband satellites, OneWeb says.To read this article in full, please click here

Paramiko, Netmiko, NAPALM or Nornir?

I had a fantastic chat with David Bombal a while ago in which we covered tons of network automation topics including “should I use Nornir or NAPALM or Netmiko?”

The only answer one can give would be “it depends… on what you’re trying to do” as these three tools solve completely different challenges.

Paramiko is SSH implementation in Python. It’s used by most Python tools that want to use SSH to connect to other hosts (including networking devices).

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New Role with Valve

I have started a new role as a Network Engineer with Valve Corporation. My period of unemployment was short-lived, and I am gainfully employed once more.

Not Another Vendor?

Did I think about going to work for another vendor? Yes, I did. I thought a lot about what I want to do, and what type of company I want to work for. Small/medium/large, vendor/customer, Product Manager vs Engineer, etc.

For now, I decided I want to solve business problems using whichever tools are appropriate, rather than building and selling a single product. I didn’t want to work for a company that just consumes technology though. I want to work somewhere that has interesting problems, and will do whatever is needed to solve those problems - build/buy/cobble together.

Why Valve?

Valve is big enough to offer the right level of challenge, but also small enough that I can make a difference. I’m not lost in the machine, but I am working on a global network.

Valve is also quite a different company. Check out the Employee Handbook to get a sense of Continue reading

New Role with Valve

I have started a new role as a Network Engineer with Valve Corporation. My period of unemployment was short-lived, and I am gainfully employed once more.

Not Another Vendor?

Did I think about going to work for another vendor? Yes, I did. I thought a lot about what I want to do, and what type of company I want to work for. Small/medium/large, vendor/customer, Product Manager vs Engineer, etc.

For now, I decided I want to solve business problems using whichever tools are appropriate, rather than building and selling a single product. I didn’t want to work for a company that just consumes technology though. I want to work somewhere that has interesting problems, and will do whatever is needed to solve those problems - build/buy/cobble together.

Why Valve?

Valve is big enough to offer the right level of challenge, but also small enough that I can make a difference. I’m not lost in the machine, but I am working on a global network.

Valve is also quite a different company. Check out the Employee Handbook to get a sense of Continue reading

Why is Securing BGP just so Damn Hard?

Stories of BGP routing mishaps span the entire thirty-year period that we’ve been using BGP to glue the Internet together. We’ve experienced all kinds of route leaks from a few routes to a few thousand or more. We’ve seen route hijacks that pass by essentially unnoticed, and we’ve seen others that get quoted for the ensuing decade or longer! After some 30 years of running BGP it would be good to believe that we’ve learned from this rich set of accumulated experience, and we now understand how to manage the operation of BGP to keep it secure, stable and accurate. But no. That's is not where we are today. Why is the task to secure this protocol just so hard?

AT&T, Sprint, and Cisco Execs Throw Cold Water on 5G

The general consensus is that the IoT, enterprise, and security markets will be impacted...

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EVPN-PIM: BUM optimization using PIM-SM

Does “PIM” make you break out into hives? Toss and turn at night?! You are not alone. While PIM can present some interesting troubleshooting challenges, it serves a specific and simple purpose of optimizing flooding in an EVPN underlay.

The right network design choices can eliminate some of the elements of complexity inherent to PIM while retaining efficiency. We will explore PIM-EVPN and its deployment choices in this two part blog.

Why use multicast VxLAN tunnels?

Head-end-replication

Overlay BUM (broadcast, unknown-unicast and intra-subnet unknown-multicast) traffic is vxlan-encapsulated and flooded to all VTEPs participating in an L2-VNI. One mechanism currently available for this is ingress-replication or HREP (head-end-replication).

In this mechanism BUM traffic from a local server (say H11 on rack-1 in the sample network) is replicated as many times as the number of remote VTEPs, by the origination VTEP L11. It is then encapsulated with individual tunnel header DIPs L21, L31 and sent over the underlay.

The number of copies created by the ingress VTEP increases proportionately with the number of VTEPs associated with a L2-VNI and this can quickly become a scale problem. Consider a POD with a 100 VTEPs; here the originating VTEP would need to create 99 Continue reading

Cisco spreads ACI to Microsoft Azure, multicloud and SD-WAN environments

Cisco is significantly spreading its Application Centric Infrastructure (ACI) technology to help customers grow and control hybrid, multicloud and SD-WAN environments.ACI is Cisco’s flagship software-defined networking (SDN) data-center package, but it also delivers the company’s Intent-Based Networking technology, which brings customers the ability to automatically implement network and policy changes on the fly and ensure data delivery.  More about SD-WANTo read this article in full, please click here

Cisco spreads ACI to Microsoft Azure, multicloud and SD-WAN environments

Cisco is significantly spreading its Application Centric Infrastructure (ACI) technology to help customers grow and control hybrid, multicloud and SD-WAN environments.ACI is Cisco’s flagship software-defined networking (SDN) data-center package, but it also delivers the company’s Intent-Based Networking technology, which brings customers the ability to automatically implement network and policy changes on the fly and ensure data delivery.  More about SD-WANTo read this article in full, please click here

IBM’s Public Cloud set for 53-Qubit Quantum Computing Boost

The quantum computing system will be the single largest universal quantum system made available for...

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© SDxCentral, LLC. Use of this feed is limited to personal, non-commercial use and is governed by SDxCentral's Terms of Use (https://www.sdxcentral.com/legal/terms-of-service/). Publishing this feed for public or commercial use and/or misrepresentation by a third party is prohibited.

Huawei Booted From FIRST Cybersecurity Trade Group

Executives from Cisco and Juniper sit on the FIRST board of directors. The global security group...

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DoCoMo Taps O-RAN to Link 5G Vendors

The carrier will use that equipment as part of its “pre-commercial” 5G service it’s launching...

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© SDxCentral, LLC. Use of this feed is limited to personal, non-commercial use and is governed by SDxCentral's Terms of Use (https://www.sdxcentral.com/legal/terms-of-service/). Publishing this feed for public or commercial use and/or misrepresentation by a third party is prohibited.

Aryaka SD-WAN Glides Into Oracle’s Cloud App Store

Trying to connect your WAN to Oracle Cloud? There's an app for that. Aryaka's managed SD-WAN is now...

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© SDxCentral, LLC. Use of this feed is limited to personal, non-commercial use and is governed by SDxCentral's Terms of Use (https://www.sdxcentral.com/legal/terms-of-service/). Publishing this feed for public or commercial use and/or misrepresentation by a third party is prohibited.

Oracle updates Exadata big iron and its cloud commitment

Oracle OpenWorld 2019 is the platform for countless software announcements, but since 2010 the company has been in the hardware business thanks to the Sun Microsystems purchase, and the company remains committed to delivering integrated hardware and software systems.Proving the point, the company took the wraps off the Oracle Exadata X8M designed for acceleration of Oracle’s database applications, featuring new data analytics and business intelligence features along with Oracle's newfound religion on automation.The new Exadata X8M server platform uses second-generation Xeon Scalable processors and Intel's Optane DC persistent memory to accelerate performance. That's a big win for Intel, which is seeing quite a bit of momentum for AMD's Epyc processor. And it's another win for Optane, which pretty much every server vendor supports.To read this article in full, please click here

Oracle updates Exadata big iron and its cloud commitment

Oracle OpenWorld 2019 is the platform for countless software announcements, but since 2010 the company has been in the hardware business thanks to the Sun Microsystems purchase, and the company remains committed to delivering integrated hardware and software systems.Proving the point, the company took the wraps off the Oracle Exadata X8M designed for acceleration of Oracle’s database applications, featuring new data analytics and business intelligence features along with Oracle's newfound religion on automation.The new Exadata X8M server platform uses second-generation Xeon Scalable processors and Intel's Optane DC persistent memory to accelerate performance. That's a big win for Intel, which is seeing quite a bit of momentum for AMD's Epyc processor. And it's another win for Optane, which pretty much every server vendor supports.To read this article in full, please click here

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