Video: How to Get Streaming Bandwidth Wherever Your Event Is

In this excerpt from his presentation at 直播峰会, TourGigs General Manager Casey Charvet discusses cellular bonding/link aggregation and other technologies and strategies for getting your stream online when you're in the field and traditional bandwidth options are unavailable.

Learn more about streaming bandwidth at 流媒体东部.

Read the complete transcript of this clip:

凯西•布: When you're doing an outside broadcast, quite often you are outside. So, how do you get good internet connectivity when you're outside in the field doing something? There's a fundamental flaw in public IT networks, in that they're designed to be best-effort. There's really no guaranteed service on these. So that sort of creates an opposition of views in which we want to guarantee that our broadcast is going to reach our consumers, and there's not going to be any interruptions in the live stream. But that's fundamentally opposed to how the internet was designed, in that we'll get your packets there if we can, and if we can't we'll at least let you know. 然而, the appeal of doing an IP-only workflow is so great that we've seen a lot of investments in engineering in solving these problems.

So, the first technology I want to touch on is cellular data. 和 2G, 3G data rates were not necessarily enough to do a decent live broadcast. 然而, 随着4G LTE的出现, it's not uncommon to see data rates of two to five mega bits a second, and this will enable a very good live stream. 事实上是这样的, I'm using my phone here at the conference to do a live stream in the exhibition hall, 我有12mb的流量. Cellular data is also super-mobile, and when it works it's very easy. 在这个例子中, you can pretty much plug in a USB cellular modem, and this is a Livestream Broadcaster. It sits right on top of your camera. 它非常紧凑. You plug your cellular USB modem in, and you're on, and you can go. 和 it really doesn't get any easier than that.

然而, strong 4G LTE coverage can be hard to predict, and just because it works one day if you're doing, 说, 音乐节, and you go out there and test on site when nobody's there, 第二天有10个人的时候,000 or 20,现场000人, that 4G data can completely evaporate, and if you don't have a backup plan, you're going to have a difficult time getting your stream to work. So, large concentration of people can greatly impact it. 也, sometimes your video world might be set up in a basement, or in some sort of tucked-away thing if you're doing a broadcast from a live venue, and you won't get any cell phone coverage. 或者4G数据覆盖.

So, that brings us to the next topic, cellular bonding and other forms of link aggregation. 哲学就是这样, 如果一个蜂窝调制解调器是好的, is there a way we can put eight of them together and that will be better? 和 it actually works out pretty well, 所以你得到了更高的吞吐量, and then you by carefully selecting your carriers, you can populate your device with USB cards from different carriers, 像Verizon, 就像在&T, 像t - mobile, so that if coverage is falling off in one, it can be thrown onto the other card and you can leverage that. So you get some balancing in fail over. 和 this increases stream resiliency as well as allowing more throughput. 和, there's definitely some software and network-engineering cleverness that are needed to chop up the video stream and reassemble this, and often this means that you need a device on both the transmit side, and on the receive side so that you can get either a base band video signal out of the device on the receive side, or you can get a standard stream format on the receive side.

和 some prime examples of vendors of these technologies are LiveU, Teradek债券, Mushroom Networks makes a product as well, 和PepWave, makes a non-video-specific router that can take several cellular cards and bond them together to a logical link.

Video: How the IP-Only Model Democratizes Content Delivery

TourGigs' Casey Charvet discusses the IP-only content delivery model and how it benefits smaller outfits doing large-scale event streams.

2017年4月10日