Link Aggregation in OpenFlow Environment

One of my readers couldn’t figure out how to combine Link Aggregation Groups (LAG, aka Port Channel) with OpenFlow:

I believe that in LAG, every traditional switch would know how to forward the packet from its FIB. Now with OpenFlow, does the controller communicate with every single switch and populate their tables with one group ID for each switch? Or how does the controller figure out the information for multiple switches in the LAG?

As always, the answer is “it depends”, and this time we’re dealing with a pretty complex issue.

This is how we get ants

The Night Awaits

and after it a new dawn, but as any wise person will tell you, not before the last light of the sun casts long shadows across the landscape. I often wonder at the sequence of events, coincidences, accidents, opportunities and more that led to the formation of the person that is now my wife. The character […]

Author information

Steven Iveson

Steven Iveson, the last of four children of the seventies, was born in London and has never been too far from a shooting, bombing or riot. He's now grateful to live in a small town in East Yorkshire in the north east of England with his wife Sam and their four children.

He's worked in the IT industry for over 20 years in a variety of roles, predominantly in data centre environments. Working with switches and routers pretty much from the start he now also has a thirst for application delivery, automation, SDN, virtualisation and related products and technologies. He's published a number of F5 Networks related books, is a regular contributor at DevCentral and was an F5 DevCentral MVP for 2014.

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The post The Night Awaits appeared first on Packet Pushers Podcast and was written by Continue reading

Newer technology pushes out CDMA in Africa, bringing faster speeds

A variety of technologies, LTE in particular, is making CDMA obsolete in many parts of Africa, bringing faster mobile communication to people throughout the region.This month, Orange, which operates LTE networks in Mauritius and Botswana, said it is moving its Kenyan subscribers off CDMA (Code Division Multiple Access) and that it will launch five LTE networks in Africa this year. CDMA can no longer favorably compete with 3G and LTE, CEO Vincent Lobry said in February.On its part, Telecom Namibia shut down all its CDMA sites on March 31 after moving its customers to faster HSPA+ and LTE networks. It said it wanted to repurpose spectrum and offer mobile voice, data, and video services over a more modern platform.To read this article in full or to leave a comment, please click here

NFV Can Curb Those End-of-Life Woes

One thing about virtualized network functions: You don't care if the hardware becomes obsolete.

NFV and OPNFV: Getting Down to Business at ONS 2015

NFV and OPNFV approaches, experiences and challenges in Service Provider networks is an important area of coverage at the upcoming Open Networking Summit 2015 (ONS2015), the premier SDN and NFV conference, held June 14-18 in Silicon Valley, USA. View the detailed program agenda, distinguished speakers and register now! Use the code PACKETPUSHERS to get a 15% discount for ONS2015 registration and save $240.

Author information

Ethan Banks

Co-host at Packet Pushers

Ethan Banks, CCIE #20655, has been managing networks for higher ed, government, financials and high tech since 1995. Ethan co-hosts the Packet Pushers Podcast, which has seen over 3M downloads and reaches over 10K listeners. With whatever time is left, Ethan writes for fun & profit, studies for certifications, and enjoys science fiction. @ecbanks

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The post NFV and OPNFV: Getting Down to Business at ONS 2015 appeared first on Packet Pushers Podcast and was written by Ethan Banks.

How BlackBerry got blindsided by the iPhone

Apple in 2007 introduced the world to the iPhone and the smartphone industry would be the same. In an instant, Apple's take on what a phone should look like and how it should operate became the de-facto standard amongst all manufacturers hoping to compete in the burgeoning smartphone market.And while some companies, like Samsung, ably adjusted their products accordingly, others, like BlackBerry, were completely blindsided by the new consumer-oriented smartphone market that had been created.It almost seems like ages ago, but BlackBerry devices in the early to mid-2000's were incredibly popular and represented the gold standard amongst smartphones. Yet once the iPhone was introduced, BlackBerry's fall from grace wasn't too far behind.To read this article in full or to leave a comment, please click here

Charter reportedly close to $55 billion deal for Time Warner Cable

Charter Communications is said to be near a US$55 billion acquisition of Time Warner Cable, a deal that would create a broadband powerhouse in the U.S.The deal could be announced as early as Tuesday, according to articles in the Wall Street Journal and Bloomberg, the first to report the story.Charter also plans to acquire Bright House Networks, a smaller cable company. If successful, the deals would make Charter, currently the fourth biggest cable company in the U.S., second to only Comcast.This is Charter’s second attempt to buy Time Warner Cable. After its first offer was rejected, Comcast in 2014 made its own bid. That deal, however, fell apart in April after the Federal Communications Commission referred the proposed acquisition to a hearing in front of a judge. The move effectively killed that plan because of the time and effort it would have taken.To read this article in full or to leave a comment, please click here

Charter reportedly close to $55 billion deal for Time Warner Cable

Charter Communications is said to be near a US$55 billion acquisition of Time Warner Cable, a deal that would create a broadband powerhouse in the U.S.The deal could be announced as early as Tuesday, according to articles in the Wall Street Journal and Bloomberg, the first to report the story.Charter also plans to acquire Bright House Networks, a smaller cable company. If successful, the deals would make Charter, currently the fourth biggest cable company in the U.S., second to only Comcast.This is Charter’s second attempt to buy Time Warner Cable. After its first offer was rejected, Comcast in 2014 made its own bid. That deal, however, fell apart in April after the Federal Communications Commission referred the proposed acquisition to a hearing in front of a judge. The move effectively killed that plan because of the time and effort it would have taken.To read this article in full or to leave a comment, please click here

Docker: join the dots

Attackers use email spam to infect point-of-sale terminals with new malware

Cybercriminals are targeting employees who browse the Web or check their email from point-of-sale (PoS) computers, a risky but unfortunately common practice.Researchers from security firm FireEye recently came across a spam campaign that used rogue email messages masquerading as job inquiries.The emails had fake resumes attached that were actually Word documents with an embedded malicious macro. If allowed to run, the macro installed a program that downloaded additional malware from a remote server.Among those additional programs, the FireEye researchers identified a new memory-scraping malware threat that steals payment card data from PoS terminals. They’ve dubbed the new threat NitlovePOS.To read this article in full or to leave a comment, please click here

Electricity Basics for the Network Administrator

Memorial Day 2015

For those who do not know, today, in the United States we hold a day of memory — Memorial Day — for those who have fallen in the defense of the freedom of our Nation. This is different from Veteran’s day, a day which honors those who either are or have served in the US Military, in that it is focused on those who have died in the actual service of the United States — in the course of duty, as it is often said. From the original Presidential proclamation —

On this Memorial Day, as we honor the memory of brave men who have borne our colors in war, we pray to God for His mercy. We pray for the wisdom to find a way to end this struggle of nation against nation, of brother against brother. We pray that soon we may begin to build the only true memorial to man’s valor in war–a sane and hopeful environment for the generations to Come.

As a veteran myself (9 years in the USAF), I find this day to be one of sadness and remembrance. My Grandfather died in the service, as have many of my other relatives, and almost Continue reading

Large scale attack hijacks routers through users’ browsers

Cybercriminals have developed a Web-based attack tool to hijack routers on a large scale when users visit compromised websites or view malicious advertisements in their browsers.The goal of these attacks is to replace the DNS (Domain Name System) servers configured on routers with rogue ones controlled by attackers. This allows hackers to intercept traffic, spoof websites, hijack search queries, inject rogue ads on Web pages and more.The DNS is like the Internet’s phonebook and plays a critical role. It translates domain names, which are easy for people to remember, into numerical IP (Internet Protocol) addresses that computers need to know to communicate with each other.To read this article in full or to leave a comment, please click here

New products of the week 05.25.2015

New products of the weekOur roundup of intriguing new products. Read how to submit an entry to Network World's products of the week slideshow.Persistence Technology for Dell Android DevicesKey features: Absolute has introduced its Persistence technology to Dell Android devices, allowing IT to remotely manage, track, and secure devices on or off the corporate network. More info.To read this article in full or to leave a comment, please click here

New products of the week 05.25.2015

New products of the weekOur roundup of intriguing new products. Read how to submit an entry to Network World's products of the week slideshow.Persistence Technology for Dell Android DevicesKey features: Absolute has introduced its Persistence technology to Dell Android devices, allowing IT to remotely manage, track, and secure devices on or off the corporate network. More info.To read this article in full or to leave a comment, please click here

Sharp phone cameras play slow-motion video at 2,100 fps

Electronics maker Sharp is showing off smartphones that can play back video at rates up to 2,100 frames per second (fps) for a smoother slow motion effect.The struggling manufacturer’s latest Android flagship phones, Aquos Zeta, Aquos Xx and Aquos Serie, have cameras that can record at 210 fps in 854 x 480 pixel resolution (FWVGA mode) or 120 fps in full HD mode.When combined with frame compensation technology, the phone can play back video in slow motion at 2,100 fps in FWVGA or 1,200 fps in full HD. Sharp calls it the world’s highest-rate super slow motion playback for smartphones.To read this article in full or to leave a comment, please click here

vSphere 6 Networking Deep Dive Webinar Is Complete

Last week we finished the last session of vSphere 6 Networking Deep Dive webinar – 6 hours of downloadable videos covering every single vSphere 6 networking topic are waiting for you.

As always, you get access to the webinar with your ipSpace.net subscription, or you can buy just this webinar, or one of the bundles that include it: Data Center track or Data Center Trilogy.

Amazon.com may be working on Etsy competitor

Amazon.com may be planning to set up a marketplace for craftsmen, a questionnaire posted on the company’s website suggests.A marketplace focused on artisan products, which seems likely to be called Handmade, would put the online retailer directly in competition with the Etsy forum, where 1.4 million active sellers push 32 million handmade items, vintage goods and craft supplies.Etsy sellers have received invites to sign up for the new section of the Amazon site, The Wall Street Journal reported.On Etsy forums, some users said they had received emails from Amazon that discussed the new marketplace for handcrafted products. Some Etsy sellers are already selling through the online retailer. Others appeared interested in the new marketplace proposed.To read this article in full or to leave a comment, please click here

BlackBerry cutting staff in smartphone unit

BlackBerry plans to lay off an unspecified number of staff in its devices unit, as it attempts to make that business profitable, while expanding in other areas.The smartphone company in Waterloo, Ontario, said in a statement over the weekend that it had decided to consolidate its device software, hardware and applications business, “impacting a number of employees around the world.”The company said that as it moves into the next stage of its turnaround, it aims to reallocate resources in ways that will “best enable us to capitalize on growth opportunities while driving toward sustainable profitability across all facets of our business.”The company had 6,225 full-time employees as of Feb. 28 this year, the end of its last fiscal year.To read this article in full or to leave a comment, please click here