 lecture tent. I see that actually some people of you like sweating in this tent, so welcome to the infrastructure review. As you might already know from previous infrastructure reviews, this talk is a little bit different, because we have a lot of teams coming up to the stage. There will be some small breaks when they need to get their hardware running, but we hope that we have time for all the teams here. The first team that will present the review is the chaos post, so please welcome them to the stage. I can see that there is actually some more posts to deliver. Is this the last car today? Not really. Okay, so you still have a lot of things to do afterwards? Indeed, yes. Breakdown and about, I would say, 50 internal cards. If we cannot deliver them here, we will take them to the next event like congress or so and try to deliver it there. Okay, so you still need some volunteers which will deliver some post? It would not hurt. Okay, so if you don't have anything to do after the infrastructure review, go by, stop there at the post stand, get some cards and deliver them. Now I will read what we received actually here. So as you can see, very nice post card. Dear all, thank you for using our service. We hope you enjoyed chaos post. We delivered three new services during camp for you. That's nice to know. Post box certification. So I don't know what that's in English, but I hope you know. And bidirectional chaos. So you can send a letter and you force somebody to give you a response so that you know that you actually delivered it. That's cool. We will be available at MRMCD, so that will be the next event. And congress, of course, so stay tuned. Oh, and about figures. About 90 kilogram of post cards were delivered, 813 online submissions to the camp and over 2,000 external post cards. Wow, that's amazing. To over 42 countries in the world. That's quite cool. Thank you very much for the post. Our next team is the network operations center. So here are the guys. I think it's on. Yeah. Hello. I'm Nicoduck. This is Mo Morientes. We are from the NOC or the internet manufacturer. And we did network again this time. Compared to last camps, the goals have been pretty similar, but we have upgraded the fiber from one gig to each decade to 10 gig. And we tried to avoid the rodents revenge this time. As always, we had a Wi-Fi encrypted and unencrypted devices, which are not capable of it. And we didn't want to filter it. Our team consists of 40 people from worldwide, most of them from Europe, some from the UK and the US. The, our build up started on 10th, so Saturday, two weeks ago. Most of the team arrived during build up. So we kept increasing the number of people on site. And during the event, we were also supported by the great knock up desk. Our design is pretty similar compared to camp 2015. The campsite is known. So we could use most of the design back then. It just increased a bit in size. And we also collaborated with the C3 power teams this time. So we had most of the fiber laid together with the power cords and attached to them because they also protected the fiber a bit just because they are so huge. We also have another uplink this time. We didn't only have the fiber, but we have also an RF uplink. I'll come to that later. We planned the local setup in CAD this time. So we had the auger plans, and we made our own plans for the datanclose and the fiber. It's a bit tricky to see here, but all the datanclose have this circle around them, which shows the rough, well, I think it was 40 meters circumference of the datanclose. And the thin yellow lines are the fiber of the decays. So most of the planning was done in CAD and then rendered into an open street map, which some of you are also used during the camp. And we also used the EMF camp pipeline, which has been used in the couple last EMF camps, which produced some PDF plans for fiber runs. So this is the logical overview of the connection of all decays. We have had a lot more decays than the last time. And this is the logical, the physical overview of the fiber runs, not the logical one. Logically, it's completely different. We increased from 37 to 57 datanclose because of the new camp size. And the naming of the datanclose was also changed from cities to the grid of the auger plan, which makes it a lot easier to find them when you search them. We have laid out 68 fibers on the side, increased from 47. And the total length of all fibers is nine and a half kilometers. This strength length, so each single core added together is over 40 kilometers. We used 140 couplers for connecting all the fibers together. And we also used new 12 core MPO fiber. So I've got a single connector connecting to a breakout box, which is easy to lay under train tracks, for example, so you don't need to dig a big hole for them. And then you have a really tidy setup in the datanclose. So in these datanclose where we used them, you see a picture on the right, we sometimes had only two MPO boxes, which compared to datanclose without MPO was a huge improvement. So we had around 20 of the MPO cables and a bit more of the non-MPO cables. External connectivity, we had a two times 10 gig away from Ediscom, increased from one time 10 gig last year. And we also found the usage for the E-roller this time to spool the fiber from a four kilometer spool to a more handable 500 meters to one kilometers. Uplink was done last week on Saturday this time. We laid it through the grass as I would say always compared to last time, no big change here. The fiber is a new improved outdoor grade fiber where the vendor said that it is safe for rodents. And we haven't been disappointed this time. Additionally, we've got an RF uplink. We have got a 10 gig main uplink to Gransey. We've got a 10 gig upstream provided by Deutsche Telecom. We also have a 500 megabit backup link to Gransey just to make sure that it still works when there's a thunderstorm or rain because the 10 and a half kilometers is way outside the spec of the 10 gig link. We also have a 500 megabit link to Berlin, to Alexanderturm or Alexanderplatz, which is 57 kilometers, also used as a backup if everything else failed. We also used it during build, set up and teardown. Dan, we also had a local DC which in the beginning from the promised, I think we ordered over 10 kilowatts of AC power had roughly eight kilowatts, which we first had to improve by putting up some rescue blankets. And you can see actually the dip we produced by just putting up rescue blankets in the graph there. It's roughly two degrees just by reflecting sunlight. But on day one we got another air condition and were able to cool that data center down quite efficiently. You also might have seen we had a huge transparency offensive where we tried to show everyone the data center. I think you all had a great look. If not, take the night, we won't tear it down until tomorrow. So look at all the fancy backbone. Our core network in that DC and as well as in a pop in Berlin consisted of two Juniper MX 204s where we basically did all the VLAN routing. We had one Arista DCS 7504 as a single core. If that would have failed, we would have had a cold standby. And on the very right hand side of the slides, you can actually see the now logical topology of the backbone. We managed not to daisy chain any data data close. Well, not too many of them. So if there would be a power outage, which happened quite a lot and in different grids, then no other data close would be affected except the ones changed behind them. So yeah, also as there was just one core, we had a loop-free design which avoided us from shitty layer 2 issues. On the access side, we rolled out 96 access switches, great mix of Juniper and Arista, big things there to event in front proact to sponsor them to us. And also we were running all a Ruba Wi-Fi as we usually do. We also had two 802.11AX access points for a test in workshop 1 and 2. So maybe some of you have noticed that you can connect to the Wi-Fi via .ax. On site logistics, you might have seen our car. We had a great Volvo V40 from 2003, which we serviced mainly by first of adding coolant to the engine, which it liked. And it was a great help for us. As you see, the data close have the Wi-Fi access points mounted in their chimney. And on top, they have the so-called ohm lights, which are from the ohm conference. And we had roughly 60 of those Wi-Fi APs on a stick, which were quite a pain in the ass to transport. So first off, we tried to strap it on the car, but then we built our quite nice roof rack, which served us really well and now makes for a very nice car. Also, obviously, everything we did was automated, so we still are using Netbox as our single source of truth and changed our module from Netbox and Chill to Netbox and Grill. Probably left over 1,000 euros at the local butcher, so that was nice as well. Also, we have some enterprise scripts in place to ensure auto provisioning of the switches. Monitoring, you might have seen the dashboard already. If not, go to dashboard.camp.cccde. We're using Prometheus for all our metrics and our collecting metrics from every other OCT which wanted to share them with us. Also, we did some load testing on our fibers. Laying them over train tracks is okay if the train stops and someone carries it over the fiber and then puts it back on, so please, train operators, take a bit more care next time. But yeah, it survived. The uplink is fine and it wasn't too bad. On a more serious note, please, if you are bringing cable to camp and unroll it through the campsite, please make sure to unroll it properly. Don't leave big spools. People get stuck in them. It rips out a switch from our decay and that's not really nice. So, we tried to deploy hints where we found it, but please take a bit more care. So yeah, some numbers for Heizer, I guess. We had roughly 5,800 consecutive Wi-Fi clients, mainly on 5 GHz, which is nice. We've seen overall roughly 12,500 devices. We actually managed to saturate our uplink above, or depending on the weather situation, above 50%, which is nice. We would love to see that at Congress, if you can make that happen. We had no fiber cuts and our uptime actually is 100% for the core, so that is nice. One more thing. Please, don't pick datan clothes. We know you can. Those locks are not secure. They are just meant as a barrier, like more of a metaphorical kind. But please, don't pick the datan clothes. Respect the infrastructure. Don't unplug our stuff. Don't leech over the Wi-Fi. Just use a cable. It makes it worse for everyone trying to use the Wi-Fi. Yeah, and don't also mess with other basic infrastructure. Also, shielded cut5e cable is no good idea in outside deployments where you have different ground potentials. It will trip an RCD, so please don't do that. Also, as you might have seen, all datan clothes have a sign where it says that you should not use them as a toilet, and every sign has its story. 3DKs were contaminated during buildup, where we just secured them with a zip tie, and one was even picked and then contaminated, so please, please. Yeah. Cam as well as Congress Network is not possible without a sponsor, so please give them a warm round of applause. And last but not least, during tier down, please don't touch our network. We will unwrap everything else. If you want to help, stop by by the knock, and we will find some work for you, but please do so in a coordinated manner. If you want your cable back, please just roll it up and leave it in front of the datan clue. We will walk around them continuously and unplug you. And if you brought an SFP or XFP, please bring also a plastic bag. Otherwise, we'll have to drop it in the ground, and that might destroy your optics. So that's it. Questions? Thank you very much to the knock guys. Our next team on stage will be the walk, but if you have a question in between to the knock, you can ask the question. Okay, go ahead. No questions for the knock. Let's see. C3 walk is here on stage. I think you already know what we are doing. We recorded all these slides and all the talks and everyone who walked on the stage. There were 82 talks on this conference. These resulted in 492 new video files uploaded to media.ccc.de. We had roughly 10 minutes of issues accumulated over all talks that had to be repaired. All in all, five cameras deployed in these stages managed by C3 walk. The last camera was just deployed for the previous talk in here, the C3 power one. We covered two lectured hands. The monkey stage was managed independently. We unfortunately had one small security incident. We had to change some passwords. For the first time on a camp, I think we deployed an induction loop for people with hearing aids. They can switch over from microphones to an internal copper coil and get direct audio without any echo from the tent so that they can understand anything. We're not just relaxing on all the software we built and used before. In the background, there was a lot of development work done for getting VoktaMix2 ready. We had a first test set up in one of the tents in here in THM and Mitner. Unfortunately, this screenshot we have there doesn't have the cameras showing, but it's a slightly different GUI. So Video Mixer Angels, you might have to learn something new on the next event. In the background, we fixed a lot of synchronization issues between the sources and audio and so on. Any questions so far? I don't think so. No one jumping up? Thank you very much for the VoktaMix2. No, no, no, no, no. But wait, there's more. We had to do much more than what you saw in the tents in here. We basically planned all the setup in these rooms here. We drew some plans on what should be placed where we hired some AV company to bring us all the stuff. We built up everything together with them. But we also worked together with all the Heralds. Thank you, Heralds. Thank you, stage management. Also, it was a translation of the possible of the guys and girls and other creatures from Freelingo, the Q&A and Signal Angels who given the microphones, converting streams from internet to the question in the lecture tents. And many other teams. Without C3 Power, we wouldn't have any lights lighting up this stage. We wouldn't have any projectors. Our cameras would have to swap the batteries every few hours. So thank you very much to Power and thank you very much to Nock for providing us with the upstream to get the streams to all of the thousands of viewers out there in the world. And all of this would not have been possible if the countless hours of network be all angels of event in the Heralds, in the background and everywhere. So. And one last shot from our office with some, I think you can't really see it. We also have a Grafana there showing how many viewers were watching the streams when this photo was taken. And down there are some audio monitoring pictures. Thank you. Thank you for the work. The next team here on stage will be the Logistics Operations Center. Big applause for them already. Do you see my slides? I don't see them. This should be better. It should be louder, I guess. That's interesting. There are more people here in the room. Come on, do it a little bit louder. It's getting better, but you can even do it better. And now different shifts. That's good. That's mean to put in even a different melody over here. Thanks to the AV Angel who's fixing my laptop right now, because I can't use X-Render at all. So there's the next angel coming up on the stage. Seems to be a little bit bigger problem. Oh no, just taking stuff, okay. That doesn't seem to be a usual problem, like putting more angels to it and it will work. But now we can see something. This should be better, wait. The Logistics Operations Center. I got about 1.5 seconds delay here, so bear with me, please. Now we have it. Yeah, weird luck. As you can see, we do logistics, not design, and we definitely don't do any video technical stuff. So let's get started. You can see our AV Angels are always around and always very helpful. And we definitely don't do stuff with computers or microphones. So CAM started for us actually with the early planning November last year. Actually Buildup started on August 3rd with packing all stuff in one of our three, four warehouses in Berlin. You see pictures of it there. That's where most of the stuff is stored between the congresses and CAM. On day 15, the first people of us arrived here at an empty warehouse tent with our first buildup stuff. And well, we started to unload lots of 40 ton trucks. All in all, we had 40 transports with trucks, 7.5 ton trucks and 40 ton trucks, and that's only buildup and only transports we organize. This doesn't include transport by DHL and stuff like this. And it doesn't include tear down. And we had a total of two hour waiting time in phone queues for truck replacement because we broke one truck and it's still not replaced. And we delivered a total of two pallets of liquor for the bath. We delivered 120 cubic meters of couches, most of which were from last congress and will be used on the next congress. Some people don't take as much of a vacation, for example, I did. So when it comes to purchasing, which since last congress is a part of the logistics, I did that from Berlin. So we had actually a remote office in Berlin from which we also during the event got some four pallets of toilet paper because we ran out. We use about one pallet per day. We also had to get about 200 liters of soap because we used more than we thought. Yes, thank you for washing your hands. During the event, we also bought two more pallets of paper towels than we thought we needed. We had a total of six pallets of toilet paper. I hope we don't have to buy any more for tear down. I really hope so because we need to drive to the metro in Berlin Friedrichshain for that. And that's two hours one way. We used around 250 liters of soap and due to some defective toilet brushes or some just vanish toilet brushes, we had to buy around 50 of them. We also handled lots of dangerous goods, for example, for cleaning toilets and washing machines and dishwashers. This is around half of what we dealt with and we have some fun facts about purchasing too. As of now, Metro doesn't have any lime in Germany. You may also have noticed that we had three different kinds of toilet paper during the event. We started with one ply, very dark toilet paper, but we couldn't do this to ourselves and to none of you. So we got some free ply, but at some point we ran out of free ply. So we went to the metro in Friedrichshain again and bought some more free ply toilet paper. So I went there and told them, yeah, I need four pallets of toilet paper. And they looked at me and said, well, we don't have four pallets of free ply toilet paper. So we took three of free ply and one of four ply toilet paper. So if you find really nice toilet paper, please leave it. So right now they only have one ply. The Metro Oranienburg where we have been for most of the fresh fruit delivery, also lime, is out of paper towels because we needed new paper towels. As we had to drive so many kilometers to Berlin and to Oranienburg, the two people who were doing the purchasing, this includes me, spend around 50 hours sitting around in cars. We hope this will be less next camp. We bought around 25 kilometers of barrier tape and I looked it up 30 minutes before this talk. We have around 500 meters left. We had to buy 10 replacement piles for the hand cards. I don't know what you people are doing to them. And we have two broken hand cards right now with out replacement tires. And if you've seen some bean bags, we actually also bought three cubic meters of filling because they were pretty empty after last Congress. So if there's any questions about what else we purchased, just come to us after this talk. Yeah, the most annoying object to transport by far was this thing. We call it Drati. It's from Pomona. Sadly, they do some really cool stuff with it, so we can't just throw it away. But it's a pain there to transport because it doesn't fit on a fork lift and it's bouncy and it doesn't really fit on a truck and it's totally fucked up. And we also did some sort of post office and received a total of around 1000 packages. So hands up, who used this service? This does not include packages that we ordered ourselves for the lock or for any teams or for the purchasing. It's just you. And sadly, most of them were from Amazon. Yes. So we transported the same stuff at least three times from Berlin to camp. We told DPD at least two times to actually deliver the packages to our tent and not drop them on some grassland or tell us we weren't available to collect them when we were 24 hours open. And we didn't take enough pictures as you see on all the text slides. Yeah, we also, I just received this news earlier so I couldn't put it in the slides anymore. We're using, we're moving a lot of stuff and you're moving a lot of stuff too. So if you are driving a vehicle that needs diesel fuel, don't stop at any fuel stations in Gransee or Zelenik. They don't have any. We also noticed you tested some of the bridges in front of the cash desk and well, they are not camper proofed. So if you drive a camper over this bridge, well, you got a C3 sinkhole. And we also got a gas storage. We didn't know about this until a day before we had to build it. So if you plan to bring a lot of dangerous goods like 70 bottles of gas to the camp next time, please tell us beforehand. And beforehand doesn't mean a week. It means two or three months please at least. Yeah, but we're not done yet. We are staying here until 1st of September. And we have to pack around 130 pallets. We have to move a lot of stuff to Leipzig and Berlin. And we have an unknown amount of other transports to organize. So if you can stay during tear down, help us to tear this event down. Yeah. Do some angel shifts. We need a lot of angels to tear stuff down. And as you can see, it's only two of us. And I know it's only two of us in this whole lecture hall because all the others are currently working on tearing this event down. Please support them. Thank you very much. The next team on my list is C3 Sustainability and C3 Yellow. So now again, the question, who used the service from the log to get the parcel delivered here? I couldn't see all the hands up. So hey, come on. There were a thousand packages. So there must be more people here in the room. Or did you all get like 20 parcels? Amazing service. Hi. So this is a joint presentation of C3 Yellow, the team that managed hygiene and the new team, CCC Sustainability. I'll start with some information from C3 Gelb. So during camp, we used approximately 1,355 cubic meters of water, like until this day, and calculated to the number of people that is 271 liters per person. Seems legit. C3 Gelb ran washing machines. We did 50 laundry loads during camp. And probably, you know, the Spülen as a service, Dishwashing as a service. We had three of them on site at two locations. They were on the high load, permanently used, but the waiting time was mostly below 20 minutes. It was the first time that we did this here. So sorry if it was not as smooth as it could be. In total, we had 80 angels that helped us with the dishwashing. We also had water dispensers at two locations. At Haven, it was at use approximately half of the time. At the lake, it was basically used all the time from 10 a.m. to 10 p.m. These machines can do 3 liters per minute. For the sparkling water tap, we used 50 kilograms of CO2. That makes approximately 5,000 liters of sparkling water. We don't have data for the non-sparkling water, but we guess it's at least the same amount. So you did good. You drank water, but drink even more. We had 190 people that actually did this bureaucratic hygiene diploma, and many, many thanks to EZ from Kidspace, who did the briefings on site, and like stamping and signing. So this concludes with the help. If you have questions, maybe now is the time. Yeah. Please get a microphone for the question. There are two angels in the hall which have microphones. I know that the water dispensers were put in to help save plastics so that we don't have as many plastic water bottles. Do you have any statistics on how many plastic water bottles we had this year versus the last camp? No, we don't have data on that, but we have plans to improve the water bottle situation for Congress. Thanks. Okay, then I move on to CCC sustainability. So, as you know, power is provided by fossil fuel generators. We used approximately 4.5 liters of, well, it's not diesel, whatever, like the heating oil per person, like including the whole time until now. For the climate impact, that's approximately 13 kilograms of CO2 per person. So this means like it's approximately the same as when you drive 100 kilometers with a car. So this doesn't sound so bad, but of course it would be nice to have other solutions in the future because we cannot afford to burn fossil fuel anymore. So we ran around and got some pictures of solar panels and solar cells at the campsites and there were actually a lot of them. So this is very good. We want to see more of that next time. Bring your solar cells and now I hand over to our... Okay, so we know about that we need to change something and how we provide power to all of us. So we are all using power for all kinds of different things. Heating, cooling, lights and charging devices are only four of major ones. So we put up a work group which we call as working title event grid to actually pull up a completely new full stack green DC power network for future camps and outdoor events international. So it's not only CCC camps, but also other outdoor events like SHAR for example. And we were lucky to build on the knowledge of the SHAR, which did already a test run. So we are now focusing on these items which you see on the slide. So we try to build up a smaller power grid, DC power grid to enable shift to green power, which is for the consumer devices and a backbone which has around 300 to 400 volts DC power. We want to also provide some more insights on how we use power. So we would like to visualize even better how much power we use. So to make you guys all a little bit more aware of how much power we are using, for example, what your village uses right now. So new power meters would be a nice thing or extending on those we have on the generators right now. And we would like to also provide completely new power meter as a kit, as a do it yourself kit, so that you can have a power meter which is also enabled to do some 24-7 logging on your power usage in which you could also use at home. Yeah, we provided or we set up a quick questionnaire for you, for all of you visiting the camp. Yeah, this is the survey URL. You can go to this URL and on the slide before you may have seen that we have a wiki. So at this point, a huge thanks to the Netherlands and to the Shah, which are providing this wiki and you can look up all the stuff we were working on there in the wiki and we will keep you updated on that wiki. So take the survey. This would be great. So thank you very much to C3 Yellow and C3 Sustainability. We have one more team to go which needs to fit into the next five minutes. It's totally quick. One other slide. So yeah, you may wonder why I have this thing here. We would just like to educate on kind of help you can do. We put up these signs today. It contains the QR code which tells you how to do it yourself, dust mask. We had Electronic Waste Recycling Station. We organized Organic Waste 15 bins. Please don't put bags in there. We started surveying to reduce meat consumption. We asked the bars to ask people if they want straws and yeah, go strike. All right. Thank you very much. And the last and final team which comes up to the stage today is our awesome heaven. So please a huge round of applause for the heaven. So I had no time to bring slides because all the heaven is working very hard to get things done as we did all the time, but we didn't do it alone. You saw all these teams who were doing something here. All of these are angels. All of these are more or less part of our team as we are coordinating the angels. We are the angel group and not everybody is part of such a team, so we had quite additional stuff to do and are still trying to do something. At the moment when I wrote down the numbers there were 66 people working, 66 angels working, but we were missing a lot of people. This is just those who were in the shift tracks, so those we are tracking, there are a lot of more people working on the teams and everywhere. So we still have about 170 hours open shifts for the next three hours, so open shifts that we need people which are coordinated through the system and there's a lot of more stuff to do that we don't have shifts for. And there are also a lot of night shifts that we need to do, but over the whole camp since or for the onsite stuff we tracked 20,000 hours. This is about two years, two and a quarter years which was worked by volunteers just here on the site which I believe is a very great thing. This work was done by 1836 people who are marked as arrived angels. We don't check who actually did work, but a lot of them really worked hard to get all this camp done. And yesterday we introduced the Angel Awareness Day. I hope everybody hugged or thanked at least two angels and we asked you to do so again. If you didn't do it yesterday, please do it twice today. Yeah, thank you all the angels that are working here at the place. We have a lot of people in this tent working. So thank you here as well and a lot of people outside. So if you can do two hours of work today or tomorrow that would be cool even if you're not one of the angels in the system. We really need people for traffic, for tear down lock also told you that they need people. It's a lot to do. We have still 1,700 open hours, open shifts in the system that are tracked in the system, so it's more or less for today and tomorrow. So actually, yes, we need some help more. But as I said, we already did a lot with a lot of people which is absolutely great. And everybody who had not their time tracked, please send a ticket to a ticket at C3 Heaven DE so that we can count your numbers. And this was all from us because we have to get back to working. Thank you very much to the heaven. We have a lot of more awesome teams which we're not here at the stage right now. We have the third, we have the park, we have GSM. We have so many more teams. So please give a huge round of applause for all the amazing work which is done on this event.