One of the topics I discussed in the IPv6 High Availability webinar is the problem of dual-stack deployments – what do you do when the end-to-end path for one of the protocol stacks breaks down. Happy eyeballs is one of the solutions, as is IPv6-only data center (Facebook is moving in that direction really fast). For more details, watch the short End-to-End High Availability in Dual Stack Networks demo video.
Software Defined Wide Area Networking (SD-WAN) is bubbling up to be one of the prime use cases of SDN. The vendors that fall into the SD-WAN bucket often include Glue Networks, Nuage, Viptela, CloudGenix, VeloCloud, etc. As you dive into each of the solutions from the vendors, you may realize that some are truly unique technologically and some may just be offering a better way to manage existing wide area networking equipment (which is still a huge value add).
In this post, I’m going to give some background on what is driving me to deploy an SD-WAN solution. Follow up posts will cover the deployment a bit more technically.
Since I now have equipment in a colo, moved into a new office, and of course, have the home office, I figured it may be a good idea to look at some of these SD-WAN technologies. In reality, my requirements have a mobile 4th site too that will be used when doing consulting and training onsite at customers to give dynamic site to site access just back to the colo.
To be perfectly honest, I didn’t have strict requirements – they are probably equivalent to those of a small IT Continue reading
First Mission: Just get something done!
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By now, the transition to adopt IPv6 networks is in full swing. Registrars are running out of prefixes and new users overseas are getting v6-only allocations for new circuits. Mobile providers are going v6-only and transition mechanisms are in place to ease the migration. You can hear about some of these topics in this recent roundtable recorded at Interop last week:
One of the converstaions that I had with Ed Horley (@EHorley) during Interop opened my eyes to another problem that we will soon be facing with IPv6 and legacy technology. Only this time, it’s not because of a numbering scheme. It’s because of old hardware.
Technology always marches on. Things that seemed magical to us just five years ago are now antiquated and slow. That’s the problem with the original 802.11 specification. It supported wireless data rates at a paltry 1 Mbps and 2 Mbps. When 802.11b was released, it raised the rates to 5.5 Mbps and 11 Mbps. Those faster data rates, combined with a larger coverage area, helped 802.11b become commercially successful.
Now, we have 802.11n with data rates in the hundreds of Mbps. We also have 802. Continue reading
This vendor-written tech primer has been edited by Network World to eliminate product promotion, but readers should note it will likely favor the submitter’s approach.
Every April millions upon millions of taxpayers rush to file state and federal taxes before the 15th, and as with every other aspect of day-to-day life, filing taxes has become digital. The IRS website alone receives three to four times as much traffic in early spring as it does in the off-season, and this gigantic spike is indicative of what most tax-related websites experience at this time of year.
+ ALSO ON NETWORK WORLD Yikes: 10,000 IRS impersonation scam calls are placed every week +
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