BGP

What happened? Now that the Internet has become critical to our day-day lives we really feel the impact when it goes down. While the origin of the Internet – the so-called “ARPANET” was built for resiliency and redundancy there are some hidden vulnerabilities that can undermine its stability. One ke…

Back in 2014, I wrote an article that highlighted that global Internet routing table passed the 512,000 or 512k route mark. Today we know that another significant milestone has been reached, as we passed the 768k route mark!  Many have predicted Internet outages may be expected. In short, the “sky i…

It’s Monday 4th March 06:00, my alarm is going off and it is time to get that much required cardio in. Whilst I am peddling away on my exercise bike like a hamster on a wheel, I am thinking of my day ahead. Most of my planning is done whilst I exercise in the morning. I like to think of the go…

State-sponsored actors have a number of different techniques at their disposal to remotely gain access to social media and secure messaging applications. Starting in 2017 and continuing through 2018, Cisco Talos has seen different techniques being used to attack users and steal their private informa…

Long before before ‘virtual’ became synonymous with servers, Network VLANS gave us a layer 2 answer for much needed network segmentation.  It also opened things up for more flexible network designs. Watch TWTV 186 “Scaling Multitenancy with VXLAN” As server virtualization exploded however, multiple…

Since DMVPN has been added to the CCIE v5 BluePrint (http://www.cisco.com/web/learning/exams/docs/ccieRS_Lab5.pdf) I figured that now was just as good of a time as any to write this blog. DMVPN stands for Dynamic Multipoint VPN and it is an effective solution for dynamic secure overlay networks. DMV…

Two weeks ago, I presented a webinar on Dynamic Fabric Automation (DFA) and went over the allocated 1 hour to cover the content.  Yesterday, as I was doing follow up with a hands-on demo, I went over time too. This illustrates how rich DFA is, and how much there is to say about it! Dynamic Fabric Au…

Securing critical internet infrastructure is an ongoing challenge for operators that require collaboration across administrative boundaries. Last September, something exceptional happened in the small South American country of Ecuador: the entire local network operation community got together to be…

Securing the Critical Internet Infrastructure is an ongoing challenge for operators that require collaboration across administrative boundaries. Last September something exceptional happened in Ecuador, a small South American country. The entire local network operation community got together to be p…