Re: [afripv6-discuss] IPv6 rollout…

Maye diop mayediop at
Tue Jul 31 15:58:42 SAST 2012

Dear Andrew,
I look forward more details to share with my universities.
Best Regards.
Le 31 juil. 2012 07:11, "Andrew Alston" <alston.networks at> a
écrit :
> 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
> 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_______________________________________________
> afripv6-discuss mailing list
> afripv6-discuss at
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