[afripv6-discuss] IPv6 rollout?

Latif Ladid latif at ladid.lu
Tue Jul 31 09:32:16 SAST 2012


Coming from you, I am not surprised :-)

We need to well document this deployment case for other universities  
to follow around the world.


Quoting Andrew Alston <alston.networks at gmail.com>:

> Hi Guys,
> So, while i'll be sending out a lot more data soon, with a lot more  
> information on exactly what we did and how we did it etc, I thought   
> I would share some news that I for one found rather exciting.
> Yesterday evening starting at around 7pm one of the South African  
> universities turned up IPv6, in a fairly consistent manner.  Now,  
> I'm not talking about turning up IPv6 on a few servers, I'm talking  
> about integrating it into every part of their network.  By 2:30am  
> this morning it was running on all their proxy servers, all their  
> residence networks, the wireless networks, all the lab PC's and a  
> good portion of the staff network.  The topology used was identical  
> to that of the IPv4, and as the rest of the network is migrated to  
> the new IPv4 topology V6 will be implemented on everything in dual  
> stack along side that as well.
> Now, here is where things get interesting, another network dual  
> stacked is no real news, so lets talk about traffic levels.
> The University in question is now running anywhere between 30 to 50  
> percent of its internet traffic on IPv6, and its working flawlessly  
> so far.  So flawlessly infact that even with Apple's default  
> implementation of Happy Eyeballs that tests RTT and defaults to v4  
> if the v6 latency is higher, the apples we tested on running lion  
> and mountain lion were still choosing ipv6 most of the time.
> I am not going to say this little rollout has been easy though, we  
> had to rearchitecture the entire network (that had to happen anyway  
> for various reasons), and we added the v6 as part of that project.   
> It would not have been possible to do that without first getting our  
> hands on another /15 worth of IPv4 space though to allow that  
> rearchitecturing to happen properly.
> As I said though, in coming days we'll write up what we did with a  
> lot more detail and send through some graphs and other information,  
> I just had to share the fact that we're seeing at points half the  
> traffic on a standard university coming in from the internet over  
> ipv6!
> Thanks
> Andrew Alston
> Network Consultant_______________________________________________
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