Pica8, early pioneer of disaggregated networking and SDN, today announced a new version of their switch operating system, PicOS v2.7.1. Normally I wouldn’t note a networking OS update, but probably the biggest single update for this release is the new support for 100GigabitEthernet switches, with support for both Broadcom and Cavium / XPliant ASICs.

Currently the Hardware Compatibility List for 100G only features Broadcom-based switches but that will undoubtedly change as relative newcomer Cavium / XPliant continues to challenge Broadcom for speed, features and flexibility. I’m also curious to know whether in the future we’ll see hardware on that list using the Barefoot Tofino™ ASIC as well.
In addition to expanding the supported hardware offerings from HP Enterprise, the HCL now also features the first Dell platform to be certified. Dell and HPE are positioning themselves quite effectively as the branded whitebox solution of choice and their devices are supported by a number of software vendors now.
But why do we care about 100G Ethernet, PicOS and more advanced ASICs?

That’s right; because we always want more than we currently have. And, I suppose, because we keep on scaling our networks with more, faster servers. Sure, we’ll Continue reading
Session-aware and deterministic routers are the key.
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Before students around the world can embrace summer vacation, they must first endure final exams. This time-tested tradition brings late night cram sessions, the regurgitation of facts and figures, nail biting and sweaty palms. For those who work hard, final exams can build character. And for those who started their summer break too early, there’s an easier option: cheating.
As the spouse of a teacher, I know cheating is a major concern in classrooms around the world. Teachers have a variety of tricks to prevent this including watching their students like hawks, giving out different tests, not allowing labeled bottled drinks or even requiring an ID before entering the room.
Of course, some countries take their prevention measures to the extreme. Iraq literally shut off the internet and Algeria blocked Twitter and Facebook. All of this in an effort to prevent cheating. Yikes!
This is a great reminder of a couple of things:
The internet is a tool. A tool is only as valuable as the hands it is in. It can be used for bad purposes. It can also be used to transform the world. I look at stories like how Land O’Lakes is leveraging data to help their Continue reading
On the same day I posted this post, I’m also speaking in a webinar about the new CCNA R&S exams, hosted by the folks at the Cisco Learning Network (CLN). The new exams have some SDN content. And it always seems like when you talk to networkers about anything that sounds like SDN, the question comes up: should I learn programming?
Today’s question answers a similar question, one that I hope is useful for the specific audience for the webinar. If you assume that programming is a skill you should learn, and you’re currently studying for CCNA R&S, what’s a good path from CCNA learning to then learning programming? That is, what are some good steps to bridge between those Cisco CCNA R&S SDN exam topics and then learning programming?