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Category Archives for "Networking"

EVPN-VXLAN lab – RT assignment methods

This post continues the EVPN-VXLAN lab from the previous one.

For now I configured the simplest possible variant of RT assignment – one vrf-target for all ES and VNI routes (vrf-target target:65000:1):

alex@vQFX1# show switch-options
service-id 1;
vtep-source-interface lo0.0;
route-distinguisher 11.11.11.11:1;
vrf-target target:65000:1;    ### This RT applies to ALL EVPN routes


alex@vMX1# show routing-instances
evpn {
    vtep-source-interface lo0.0;
    instance-type virtual-switch;
    interface ge-0/0/4.0;
    interface ae0.0;
    route-distinguisher 1.1.1.1:1;
    vrf-target target:65000:1;   ### This RT applies to ALL EVPN routes
    protocols {
        evpn {
            encapsulation vxlan;
            extended-vni-list [ 100 200 ];
            multicast-mode ingress-replication;
            default-gateway no-gateway-community;
        }
    }
    bridge-domains {
        v100 Continue reading

44% off Aukey Dash Cam, Full HD Wide Angle With Night Vision – Deal Alert

This 1080p Dash Camera captures video or stills, and is equipped with a motion detector and continuous loop recording. An emergency recording mode can be activated by sharp turns or sudden stops, and automatically captures unexpected driving incidents. The Dash Camera can also record whenever it sees motion in front or create a time-lapse video of your trip. Features Full HD 1080P, 170° Wide Angle Lens, 2“ LCD and Night Vision. Its typical list price has been reduced 44% to just $58.99. See this deal on Amazon.To read this article in full or to leave a comment, please click here

22% off Aukey Dash Cam, Full HD Wide Angle With Night Vision – Deal Alert

This 1080p Dash Camera captures video or stills, and is equipped with a motion detector and continuous loop recording. An emergency recording mode can be activated by sharp turns or sudden stops, and automatically captures unexpected driving incidents. The Dash Camera can also record whenever it sees motion in front or create a time-lapse video of your trip. Features Full HD 1080P, 170° Wide Angle Lens, 2“ LCD and Night Vision. Its typical list price has been reduced 22% to just $69.99. See this deal on Amazon.To read this article in full or to leave a comment, please click here

22% off Aukey Dash Cam, Full HD Wide Angle With Night Vision – Deal Alert

This 1080p Dash Camera captures video or stills, and is equipped with a motion detector and continuous loop recording. An emergency recording mode can be activated by sharp turns or sudden stops, and automatically captures unexpected driving incidents. The Dash Camera can also record whenever it sees motion in front or create a time-lapse video of your trip. Features Full HD 1080P, 170° Wide Angle Lens, 2“ LCD and Night Vision. Its typical list price has been reduced 22% to just $69.99. See this deal on Amazon.To read this article in full or to leave a comment, please click here

44% off Aukey Dash Cam, Full HD Wide Angle With Night Vision – Deal Alert

This 1080p Dash Camera captures video or stills, and is equipped with a motion detector and continuous loop recording. An emergency recording mode can be activated by sharp turns or sudden stops, and automatically captures unexpected driving incidents. The Dash Camera can also record whenever it sees motion in front or create a time-lapse video of your trip. Features Full HD 1080P, 170° Wide Angle Lens, 2“ LCD and Night Vision. Its typical list price has been reduced 44% to just $58.99. See this deal on Amazon.To read this article in full or to leave a comment, please click here

67% off Amir 3 in 1 Cell Phone Camera Lens Kit – Deal Alert

With this smartphone lens kit from Amir you can take high clarity, professional photos wish fisheye, macro and super wide angle format from virtually any cell phone. These professional HD lenses reduce glass flare & ghosting caused by reflections. A universal clip design makes it easy to attach to most cell phones, iPads and PC's as well.  The fisheye lens capture images at 180-degrees, wide angle lens at 140-degrees and the macro lens magnifies 10x with a minimum object distance of 10-15mm. The lens kit receives an average of 4 out of 5 stars on Amazon (read reviews). Regular price is listed at $29.99 on Amazon, but with the current 67% discount you can gift this kit to yourself or an aspiring photographer for just $9.99. See this deal on Amazon.To read this article in full or to leave a comment, please click here

.NE Body Out There?

Protecting end users starts with understanding their use and integration of services. For authoritative DNS, this includes human error when copying and pasting information between interfaces. After purchasing a new domain, such as “containercult.com,” the end user configures authoritative nameservers. Delegation is a “set it and forget it” operation; it is often made outside of scope of continuous integration pipelines and automated deployment systems. To quantify this risk and reconcile it with reality, we started to look at the existence of nameserver record typos in the .COM zone file.

There are typos in nameserver records for a number of authoritative DNS providers made across a number of zones, making it clear that end users make delegation typos. The existence of the typo is one thing, it’s another when the typo has been registered and another provider is serving responses. One of the typos of interest was dynect.ne, which was registered some time in February of 2016. At that time, it was delegated to a pair of authoritative nameservers operated by myhostadmin.net, a name related to a Chinese hosting provider. Sometime around January 2017, the authoritative nameservers changed over to Yandex, the Russian internet services provider, and Continue reading

GRE Tunnels – Generic Routing Encapsulation – Use Cases

GRE Tunnels  GRE tunnels are by far most common tunnelling technology. Very easy to setup, troubleshoot and operate. But in large scale deployment, configuring GRE tunnels become cumbersome, because GRE tunnel is a point to point tunnel.   GRE Tunnel Characteristics    • GRE tunnels are manual point to point tunnels. Tunnel end points are not automatically […]

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Net Neutrality (Again and Again and Again)

Net neutrality is one of those topics that should never have existed, but of course it inevitably erupts every so often, so here we go…

Not so long ago Robert Graham published his anti-net-neutrality arguments which are (no surprise) not much different from what I wrote when I still cared about this argument (here, here, here and here). While I agree with his overall perspective, I completely disagree with his view of Comcast’s initial response to network congestion.

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IDG Contributor Network: SunPower technology powers solar plants using Krypton Cloud

The installed capacity of solar power in the U.S. now exceeds all other forms of power generation.Generating solar power at scale with thousands of panels requires new approaches to monitoring and management. Since 2004, SunPower has designed, constructed, managed and supplied high performance solar power plants around the world. More than 3 gigawatts of solar plants rely on SunPower technology today. How does SunPower monitor thousands of solar panels across hundreds of power plants? How are performance issues remotely diagnosed and troubleshot in real-time? How are false alerts distinguished from real ones? To read this article in full or to leave a comment, please click here

On the ‘web: Getting Involved with the IETF

I sat with Greg, Kathleen, and Alia to talk about “ordinary engineers” getting involved in the IETF while we were in Prague. Believe it or not, this time I didn’t get out into the city at all other than walking between the hotel I was staying at and the venue hotel. I try to always take “one day off” and do something around the city we are in, but the schedule didn’t allow it this time. Anyway, here is the link—

Greg Ferro attended the IETF 99 meeting in Prauge in July 2017. In this Priority Queue show, he sits down with Kathleen Moriarty, an IETF Security Area Director; Alia Atlas, a Routing Area Director; and Russ White, a co-chair of a variety of working groups and all-around community leader; to discuss opportunities for IT professionals to get directly involved with the IETF in networking, security, and other areas. —Packet Pushers

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IDG Contributor Network: The ultra-optimistic case for AI in business

You’ve seen the headlines: Artificial intelligence is a job killer. It will end humanity. At the very least, it will lead to social unrest.The truth is, no one really knows what changes AI will bring. What’s indisputable is that it’s already here and it’s getting more prevalent by the day. IDC predicts that worldwide revenues from cognitive and AI systems will grow 59.3% this year to $12.5 billion and will achieve a compound growth rate of 54.4% through 2020, when revenues will hit $46 billion.To read this article in full or to leave a comment, please click here

The Internet Society and Wikimedia Team Up to Empower Everyday Heroes

The best education materials are inclusive, equitable, and high-quality, and they promote lifelong learning. One of the best tools for sharing these types of materials is the Internet. However, the body of education materials currently available online is not yet as inclusive and equitable as it could be.  

So many of us default to looking online for anything we want to know. Wikipedia alone covers more than 40 million articles in nearly 300 languages. With this scope, it can sometimes feel like things that haven’t happened online haven’t happened in real life. And that’s a problem — especially because so many of the facts that don’t make their way online are about women, people of colour, and the global south.

Ms. Joyce Dogniez