Jared Naude (77)
Weather map of the traffic following through congress. The YoloColo saturated the 100 Gbps link. 300 Gbit of capacity was provided by several partners. #39c3
Time for my favorite talk of #39c3, the infrastructure review. It truly shows the scale and effort evolved to put the congress together, from networking, communication, video recoding / streaming, power co-ordination, angels and much more. It demonstrates the saying "it takes a village" to put a community event together.
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Congress is powered by a 10kV ring through 2 transformers. There is an emergency "thomas the tank engine" generator for emergency power. #39c3
This is the spectrum analysis of various 2.4 Ghz, 5 and 6 Ghz bands. IPv6 was about 35% of the usage. The team is considering making the YoloColo IPv6 only. Juniper SRX cluster was used as a NAT64 gateway. #39c3
Next up is the Phone Operations Center (POC). They deployed:
* ~ 11 300 configured extenstions (8500 last year), increasing by more than 32%
* 6 100 configured DECT phones
* 4 600 concurrent DECT phones
* Max 110 calls in parallel
* More than 400k calls were made (>206k DECT)
ChaosPost - 7849 post cards were forwarded to Deutsche Post of which 2145 were international and 5704 were national. #39c3
The lingo team has built their own hardware for the specific requirements that they have. 2 were tested last year and 9 were deployed this year. A feat worthy of "Employee of the month" #39c3
The team used the same automation stack as last year. A lot of equipment was prestaged which made deployment faster. All of the patch panels were imported into netbox. DoT on the resolvers and C02 monitoring was done by BLE beacons. #39c3
Next up in the C3 GSM team. The team deployed 8 base stations for 2G and 18 base stations for 4G.
Operational stats:
* 2331 SIM Cards (902 Physical and 1429 eSIMS)
* 1424 concurrently "active" devices
* 11967 calls
* 9007 SMSs
* 2 OPEN5Gs crashes - massive decrease from last year. #39c3
