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EVPN – All-active multihoming

So this is the fourth blog on EVPN, the previous blogs covered the following topics:

  • EVPN basics, route-types and basic L2 forwarding
  • EVPN IRB and Inter-VLAN routing
  • EVPN single-active multi-homing

This post will cover the ability of EVPN to provide all-active multi-homing for layer-2 traffic, where the topology contains two different active PE routers, connecting to a switch via a LAG, the setup is similar to the previous labs. Due to some restrictions and in the interests of simplicity, this lab will cover all-active multi-homing for a single VLAN only, (VLAN 100 in this case) consider the network topology:

Capture5

The topology and general connectivity is the same as the other previous examples, the two big differences are that only VLAN 100 is present here and the connectivity between MX-1 and MX-2 is now using MC-LAG.

The first consideration that needs to be made when running EVPN in all-active mode, is that it must connect to the upstream devices using some sort of LAG, or MC-LAG – consider the wording from the RFC 7432:

https://tools.ietf.org/html/rfc7432#section-14.1.2

“If a bridged network is multihomed to more than one PE in an EVPN network via switches, then the support of All-Active Continue reading

Top website domains are vulnerable to email spoofing

Don’t be surprised if you see spam coming from the top websites in the world. Lax security standards are allowing anyone to "spoof" emails from some of the most-visited domains, according to new research.Email spoofing — a common tactic of spammers — basically involves forging the sender’s address. Messages can appear as if they came from Google, a bank, or a best friend, even though the email never came from the actual source. The spammer simply altered the email’s "from" address.Authentication systems have stepped in to try and solve the problem. But many of the top website domains are failing to properly use them, opening the door for spoofing, according to Sweden-based Detectify, a security firm.To read this article in full or to leave a comment, please click here

Top website domains are vulnerable to email spoofing

Don’t be surprised if you see spam coming from the top websites in the world. Lax security standards are allowing anyone to "spoof" emails from some of the most-visited domains, according to new research.Email spoofing — a common tactic of spammers — basically involves forging the sender’s address. Messages can appear as if they came from Google, a bank, or a best friend, even though the email never came from the actual source. The spammer simply altered the email’s "from" address.Authentication systems have stepped in to try and solve the problem. But many of the top website domains are failing to properly use them, opening the door for spoofing, according to Sweden-based Detectify, a security firm.To read this article in full or to leave a comment, please click here

Buy-in from top execs is key to cloud transitions, AWS executive says

As the head of Amazon Web Services, Andy Jassy has seen a lot of big organizations start using the public cloud. The biggest indicator of success for a cloud transition is simple, he says: Has the business' senior staff bought into it?In his view, organizations will usually stick with their status quo on-premises data centers unless leaders are ready to promote the use of public cloud services. "And it sounds a little bit simple, but the reality is that there's so much inertia all over these organizations in continuing to things the same way they've been done for the last number of years, for a variety of different reasons," Jassy said at the AWS Summit in Washington, D.C., on Tuesday. To read this article in full or to leave a comment, please click here

IT workers at Tennessee insurer on edge amid outsourcing rumors

The IT employees at Unum Group, a Chattanooga, Tenn.-based insurer, are alert to the possibility that their employer may shift work to an offshore outsourcing firm. The employees don't know much yet, but they know enough to be alarmed -- and a letter sent out last week by the CIO did little to change that.The news about Unum, which reported nearly $11 billion in revenues last year, originated in a recent blog post by Sara Blackwell, a labor attorney in Florida who represents former Disney IT workers in a lawsuit after that firm replaced them with offshore outsourcer workers. Some of the replacements were on H-1B visas.To read this article in full or to leave a comment, please click here

A FireEye Chat with Kevin Mandia

In early May, FireEye announced that company president Kevin Mandia would replace industry veteran Dave DeWalt as CEO.  My colleague Doug Cahill had a chance to catch up with Kevin yesterday to get his perspectives on FireEye, enterprise security, and the threat landscape amongst others.  Here are a few highlights:On FireEye’s direction:  In spite of lots of distraction, Mandia is focused on driving “engineering innovation” at FireEye.  Normally, this vision would be equated with security products alone but Kevin’s believes that products can anchor services as well.  This involves installing FireEye’s endpoint and network security products on a customer network, collecting telemetry, comparing it to current threat intelligence, detecting malicious activities, and then working with customers on remediation.  To accomplish this, FireEye products must be “best-in-class” for threat detection on a stand-alone basis.  The FireEye staff is then available to add brain power and muscle to help product customers as needed.To read this article in full or to leave a comment, please click here

A FireEye chat with Kevin Mandia

In early May, FireEye announced that company president Kevin Mandia would replace industry veteran Dave DeWalt as CEO. My colleague Doug Cahill had a chance to catch up with Mandia yesterday to get his perspectives on FireEye, enterprise security and the threat landscape amongst others. Here are a few highlights:On FireEye’s direction: In spite of lots of distraction, Mandia is focused on driving “engineering innovation” at FireEye. Normally, this vision would be equated with security products alone, but Mandia believes products can anchor services as well.  This involves installing FireEye’s endpoint and network security products on a customer network, collecting telemetry, comparing it to current threat intelligence, detecting malicious activities, and then working with customers on remediation. To accomplish this, FireEye products must be “best in class” for threat detection on a stand-alone basis. The FireEye staff is then available to add brain power and muscle to help product customers as needed.To read this article in full or to leave a comment, please click here

A FireEye Chat with Kevin Mandia

In early May, FireEye announced that company president Kevin Mandia would replace industry veteran Dave DeWalt as CEO.  My colleague Doug Cahill had a chance to catch up with Kevin yesterday to get his perspectives on FireEye, enterprise security, and the threat landscape amongst others.  Here are a few highlights:On FireEye’s direction:  In spite of lots of distraction, Mandia is focused on driving “engineering innovation” at FireEye.  Normally, this vision would be equated with security products alone but Kevin’s believes that products can anchor services as well.  This involves installing FireEye’s endpoint and network security products on a customer network, collecting telemetry, comparing it to current threat intelligence, detecting malicious activities, and then working with customers on remediation.  To accomplish this, FireEye products must be “best-in-class” for threat detection on a stand-alone basis.  The FireEye staff is then available to add brain power and muscle to help product customers as needed.To read this article in full or to leave a comment, please click here

Security of “high-impact” federal systems not exactly rock-solid

In the face of relentless attacks – via malware, DDOS and malicious email – the defenses that protect the nation’s most “high impact” systems are spotty at best and could leave important programs open to nefarious activities, according to a new report from the Government Accountability Office.+More on Network World: Not dead yet: 7 of the oldest federal IT systems still wheezing away+At issue here the GAO wrote is the weakness of “high impact” system protection because the government describes those “that hold sensitive information, the loss of which could cause individuals, the government, or the nation catastrophic harm,” and as such should be getting increased security to protect them.To read this article in full or to leave a comment, please click here

Security of “high-impact” federal systems not exactly rock-solid

In the face of relentless attacks – via malware, DDOS and malicious email – the defenses that protect the nation’s most “high impact” systems are spotty at best and could leave important programs open to nefarious activities, according to a new report from the Government Accountability Office.+More on Network World: Not dead yet: 7 of the oldest federal IT systems still wheezing away+At issue here the GAO wrote is the weakness of “high impact” system protection because the government describes those “that hold sensitive information, the loss of which could cause individuals, the government, or the nation catastrophic harm,” and as such should be getting increased security to protect them.To read this article in full or to leave a comment, please click here

Microsoft cozies up to Linux containers

At Dockercon this week many vendors are singing the praises of their platforms being ideally suited to run application containers. One company with a particularly strong showing at the conference has been Microsoft though, which announced today it is further integrating Docker’s container management products into its Azure cloud portfolio.Microsoft’s container-related announcements at Dockercon include:-Docker Datacenter, the container management platform product is now available as a service in the Azure public cloud marketplace. This is a big deal because it allows customers to run Docker Datacenter on their own premises, and in the public cloud. This is not an exclusive agreement however; Docker Datacenter is also available in Amazon Web Service’s cloud.To read this article in full or to leave a comment, please click here

Worth Reading: 60 Limit and the CCDE

So how hard can it be to earn a CCDE? It’s just a rubber stamp to show that you have been working in design for a number of years, isn’t it? Well not quite. You have to really prove your experience and knowledge in a number of fields, encompassing a variety of roles that not every candidate would have been fortunate enough to have undertaken prior to gaining that prestigious CCDE number. -Cisco Learning

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Over 80% off Essential Speed Reading Bundle – Deal Alert

You know that stack of books you’ve been meaning to tackle, but thought you never had the time? The Essential Speed Reading Bundle comes with a 3-year subscription to Spreeder and 7 Speed Reading EX, two tools proven to boost reading speeds. Spreeder is a rapid serial visual presentation (RSVP) e-reader that presents any digital text at a natural speed that reduces eye movement and increases comprehension. Meanwhile, 7 Speed Reading EX is a speed reading software that trains you to read up to 3.417 times faster through video tutorials and comprehension exercises. Retailing for $146.95, the Essential Speed Reading Bundle is available on sale for $19, almost 90% off its original price.To read this article in full or to leave a comment, please click here

Salesforce steps up its push to make everyone an app developer

Salesforce has already rolled out several tools that aim to let business users create their own mobile apps, and on Tuesday it unified them into a suite and added some new services on the back end.The new App Cloud Mobile suite includes Salesforce's Lightning app creation tools, which require little to no coding and are supposed to make it easy enough for everyday business people to create their own iPhone and Android applications.It also includes the development services of Force and Heroku, and the ability to bring Wave Analytics and Lightning Snap-ins to any mobile app.To read this article in full or to leave a comment, please click here

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