NEW BACKBONE AND RELAY PROTOCOL
In order to more efficiently and securely carry user traffic, we've created a new network backbone that connects our US, European, and Asian datacenter sites. Over the next six months we expect to double the number of links in this network. We've also created a new game server relay network protocol, which can quickly adapt to determine the optimal route to the game server and take best advantage of our backbone. We're currently testing this protocol on a percentage of games played in the US. We have installed these relays at every data center, as well as additional edge locations in the US. In the coming months, we'll be rolling out this protocol and additional edge locations to the rest of the world.
Typically, when clients connect directly to a game server, the route is determined by standard IP routing, which is often inefficient. When connecting with our relay protocol, clients choose the relay that gives them the best route. This means that we can move game traffic into Valve's extensive worldwide network earlier in the route, resulting in packets spending less time traveling over congested public internet links and more time on our dedicated links. Once there, we can ensure routing is optimal and general internet traffic doesn't crowd out game traffic. Our experience shows that often the direct route is not the best one. In the US, 40% of all clients get a better ping when they enter our network earlier by selecting a relay closer to them. The improvement is usually modest, but for a small percentage of players, the ping is significantly lower.
MORE DURABLE DDOS PROTECTIONS
Defending our servers against Distributed Denial of Service attacks is an ongoing battle. We've added specialized mitigation hardware to our network edge locations. Additionally, our new relay protocol helps defend against DDoS. If an attack or other network disruption obstructs or degrades the route through one relay, clients will now be capable of quickly switching to another relay. Eventually we can completely remove game servers from the public IP address space, where they will be much safer from Denial of Service and other security hazards. Additionally, we've expanded the edge of our network to three terabits per second, and over the past six months we've doubled our server capacity in Singapore and increased capacity in US East by 40%. Over the next six months we are planning to expand worldwide capacity by over 50%.
INSTALLING THE REBORN BETA
1. Install Dota 2 if you haven't already
2. Start up Dota 2
3. Go to the Play tab and select Dota 2 Reborn Beta
4. Click Install to begin your download
PLAYING THE REBORN BETA
Once the beta is installed, whenever you launch Dota 2 you'll be asked which version of the game you want to play.
You'll find that your match history, items, rank, and friends are all the same across versions.
Ranked Matchmaking will be enabled soon. We anticipate it being turned on in a few days, but we need more testing of the basic functionalities first.