FOSDEM

As for the last 11 years Cisco sponsored the FOSDEM 2020 conference in Brussels. This is one of the largest, if not the largest, open source conference in the world with this year 872 events spread over 2 days. From a network point of view the important part is that the main SSID at the conference i…

The first weekend of February is for me by now traditionally the FOSDEM weekend. FOSDEM is arguably the biggest Open Source Developers conference in the world with 742 lectures regarding various topic spread over the ULB university campus. The entrance is free and all presentations are recorded and…

FOSDEM 2017 was again a great success. We did a bit less analysis compared to 2016, but the numbers we got indicate the number of visitors grew significantly compared to last year: the total number of unique MAC addresses went from 9711 to a stunning 11918, an increase of 22.7%.…

Now in part 4 we can combine the the IP to MAC address tables together with the user agents, captured by NBAR2 and  exported using netflow. The result of all this logging is a list of MAC addresses, the IPs a particular MAC address was using at a certain time, and the user agents we saw for this IP…

In the last part we used NBAR2 to classify traffic. To do this the router need to investigate every traffic flow which it sees. Of course, it would be interesting to get this information out of the router and into some logs. This is the ‘how we did this’ post and it is a bit technical. I…

Continuing the analysis of the data collected during Fosdem 2016. This year, we replaced the router with a more powerful model: an ASR 1006 with RP2 and SIP20 modules. This allowed us to enable the NBAR 2 feature to analyse the traffic crossing the router. NBAR 2 is a traffic analysis engine which a…

As is our tradition by now a team of volunteers helped out with the network setup and operation of Free and Open-source Software Developers’ European Meeting (FOSDEM). The network was very similar to the one used over the last two years and we wanted to report on the evolution of the traffic we meas…

As is our tradition by now a team of volunteers helped out with the network setup and operation of Free and Open-source Software Developers’ European Meeting (FOSDEM). The network was very similar to the one used last year and we wanted to report on the evolution of the traffic we measured. First th…

For a few of us in the Cisco Brussels office the last weekend of January always marks a special occasion. The weekend is dedicated to the Free and Open-source Software Developers’ European Meeting (FOSDEM) conference in Brussels, with around 5,000 visitors attending. The event happens at the U…