[AusNOG] Australian Steam Content Mirrors

[Damian Guppy]

Hey Daniel,

Around June / July this year valve migrated off of their old distribution
system based around proprietary 'steam cache' servers to what they call
"SteamPipe" which is a HTTP based CDN. When I last checked in early august
only 10% or less traffic continued over the old steamcache system.

Steampipe itself is broken into 2 subsystems - Valves in house HTTP CDN and
third party CDN's. The traffic split between these two systems is
approximately 67% to 33% when i last looked. Valves in house system are all
servers that fall below the subdomain of *.cs.steampowered.com and
australia currently hosts 3 of these servers - Valve217.cs.steampowered.com,
Valve5.cs.steampowered.com and Valve6.cs.steampowered.com. The third party
system is currently a mix of 6 vendors at last check using the naming
system content*.steampowered.com. Each of these content 'servers' is mapped
to a different global CDN and each one serves a different set of content -
IIRC content1 servers authentication and store traffic, and content 3 and
content7 serve game files. Content7 is the namespace for Akamai, Content1
is Limelight, 2 is Footprint, 3 is HighWinds, 4 is EdgeCast, and 5 is
Amazon. 6 is now decommissioned and no longer in rotation.

In short, it is basically impossible for any consumer ISP to cache all of
steam, the best they can do is host a bunch of the third party CDN's such
as akamai and hope to get lucky and serve maybe 40% of steams traffic
(although in my experience ISP's dont count akamai as freezone / unmetered)

--Damian


On Tue, Sep 17, 2013 at 6:47 PM, Daniel Watson <daniel at glovine.com.au>wrote:

>  Hi Guys
>
>  I was wondering if anybody on-list may know of any other Steam content
> providers other then the obvious IINET, Internode or Telstra based services
> run by those types of ISP's? and if they know the URL's?
>
>  Daniel
>
> _______________________________________________
> AusNOG mailing list
> AusNOG at lists.ausnog.net
> http://lists.ausnog.net/mailman/listinfo/ausnog
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.ausnog.net/pipermail/ausnog/attachments/20130917/b2637b2d/attachment.html>