Former Gigamon CEO Raises $7M for a Different Type of Security Monitoring
Datiphy watches how data is being used — a managed service that's being turned into a software product for the U.S. market.
Alcatel-Lucent BGP configuration tutorial. Part 2 – BGP policies. Community
In the first part of this BGP tutorial we prepared the ground by configuring eBGP/iBGP peering. We did a good job overall, yet plain BGP peering relationship is useless, the power of BGP in its ability for granular management of multiple routes from multiple sources. And the tools that help BGP to handle this complex task are BGPReaction: Interoperate or Die
Ethan has an excellent post up on Interoperate or Die. Herewith, a few thoughts in response.
From my perspective, the importance of open standards in the world of network engineering can hardly be overstated. As networks become more complicated (or complex, depending on what word you want to use), having consistent interfaces will become increasingly important. Think of the old IP model — every transport runs on top of IP, and IP runs on top of every physical/link layer. Using IP as a “choke point” built a “wasp waist,” a single API everyone on both sides of the narrow point in the protocol layer could talk to.
in recent years, we’ve forgotten the wasp waist. We’ve built everything over HTTP, and everything over Ethernet over IP, and everything over GRE over IP, and… The entire stack, above IP, is a hornet’s nest of convoluted caverns and side halls pointing, apparently, everywhere at once (like the guy from the forest in The Point, above).
If you think of IP as an API (which is really what it is), the point is to have a single layer API between any two interacting systems. This creates a clean interaction surface that helps you to Continue reading
Cisco VIRL: More Than A Certification Study Lab
Cisco's Virtual Internet Routing Lab provides students and experienced networking pros with a tool to build network topologies. Here's what to expect in terms of capabilities and limitations.VSAN: As Always, Latency Is the Real Killer
When I wrote my stretched VSAN post, I thought VSAN uses asynchronous replication across WAN. Duncan Epping quickly pointed out that it uses synchronous replication, and I fixed the blog post.
The “What about latency?” question immediately arose somewhere in my subconscious, but before I could add that thought to the blog post (because travel), Anders Henke wrote a lengthy comment that totally captured what I was thinking, so I’m including it in its entirety:
Read more ...I gave $10 to every presidential candidate
What happens when your candidate drops out of the 2016 presidential race? What do they do with the roughly million names of donors they've collected?I've decided that somebody needs to answer this question, so I've donated $10 to each of the roughly ~25 current presidential candidates (yes, even the hateful ones like Trump and Lessig). By donating money, I've put myself on the list of suckers who they can tap again for more donations. After the election next year, we'll be able to figure out how each candidate has used (or misused) the email addresses I gave them.
For most candidates, the first two pieces of information they ask of your is #1 your email address and #2 your zip code. They need the zip code so that when there is a local rally in your area, they can contact you to get your to turn out. But as a side effect, it means being able to extract favors from local politicians.
Therefore, to do this right, I'd have to make a donation from every congressional/senate district in the country. I suspect one use of this information is when one Representative goes to another and says "If you Continue reading
Python and IPython
I recently came across IPython while reading some Python development blogs. IPython is an alternative to the standard Python shell that offers some additional features. When I first read about IPython, I was a little confused because many people refer to it as the ‘Python interactive shell’. While IPython is an interactive shell, it is not the Python interactive shell. For instance, we can enter the Python interactive shell just by typing ‘python’ on our Python development box…
So, what we really did here was invoke the Python interpreter in interactive mode. In this mode, commands can be read from the TTY and directly interpreted. So for example, we can do something like this…
The Python code we type is directly interpreted and we get the output we would expect. So instead of using the Python interpreter to run a .py script, we could do it all directly from the interpreter. So the example from our Python up and running post works just as well in interactive mode as it did when run as a script…
So that’s Python interactive mode. Now, let’s talk about IPython. The first thing we Continue reading
iOS 9 — How did the launch really go?
On September 16 2015 at 10:00AM PST, Apple released their latest update to the iPhone: iOS 9. For several days after the announcement, ISPs and customers reported problems downloading iOS 9 due to overloaded servers. Obviously, the demand for iOS 9 was higher than even Apple anticipated, but how much higher? Few organizations outside of Apple have any idea what the actual iOS 9 adoption rates look like.
By analyzing the user agent strings of requests passing through the CloudFlare network, we were able to piece together a pretty good picture of iOS 9 uptake. Here’s an hour-by-hour look at requests from iOS 8 devices (blue) and iOS 9 devices (orange) for the first 24 hours after the announcement.
We started seeing small amounts of iOS 9 usage before it was officially released, followed by a spike immediately after the launch (times are shown in UTC, so the 10:00AM announcement shows up as hour 18). You can also see a second spike at 10:00 UTC when Europe started waking up.
What about iOS 9.1?
Even though the official release was for iOS 9.0, we also found beta iOS 9.1 in the wild. Curious about the comparative traffic Continue reading
SSL: A Winning Formula For A10 Networks?
A10 and Blue Coat could find an edge by doing SSL well, one analyst believes.
The FCC Might Make It Harder To Use Wifi Firmware Of Your Choice
There's an ongoing issue in the wifi world where the FCC has proposed some new rules. The rules could effectively prevent using third party firmware in a wireless device. If this is a concern to you, you can share your thoughts on the issue with the FCC, at least until 9-October-2015.Interface descriptions – your last hope
No, I’m not starting a naming war. Not really. I don’t care if you use ! or # or >> or {} to mark your interface descriptions. I don’t care if you use all-caps or lowercase, or if you feel … Continue reading
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Congratulations to the Docker Global Hack Day #3 Local Edition Winners
Thank you to everyone who participated in Docker Global Hack Day #3! Over 2,000 community members attend local meetups hosting Docker Global Hack Day #3 events. A big thank you to all of the sponsors who helped make those events … ContinuedSK Telecom Deploys Samsung’s Virtual IMS & EPC
SK Telecom applies NFV to VoLTE, after dabbling with a vEPC.
Google Plus Is Mouldering
A quick search for “Google Plus is dead” reveals a number of recent articles about the pending death of the social media platform. It’s not fair to say it’s dead as yet. But it’s certainly mouldering. I took an informal survey on Twitter, LinkedIn, and Slack, asking folks if they were still using […]Network Break 54: HP Blues, Listener Corrections
Network Break 54 examines HP's anticipated layoffs, financial news from startups, and listener feedback on what we got wrong about an Apple/Cisco partnership.
The post Network Break 54: HP Blues, Listener Corrections appeared first on Packet Pushers.
All Aboard: Royal Caribbean Simplifies With Citrix
The cruise line company uses Citrix's SDN products to create reliable network.