On 12 Jun 2011, at 11:45, Tom Bird wrote:

> On 08/06/11 11:37, Graeme Fowler wrote:
>> On Wed, 2011-06-08 at 09:12 +0100, Tim Chown wrote:
>>> I was wondering if we have any significant UK content providers taking part?
>> 
>> I wouldn't say we're of any great significance, but we added an AAAA
>> record for www.lboro.ac.uk yesterday. We're up to 5.46% of all accesses
>> over IPv6 since midnight.
> 
> 5% is a fair bit higher than most people are seeing, are your campus 
> desktops on ipv6?
> 

We have IPv6 on all our staff edge vlans, which covers several thousand 
machines.  The figures would have probably been much higher if we had managed 
to get IPv6 on our student halls of residence.  It was planned for IPv6 day 
that students would have IPv6 but unfortunately we ran into an IPv6 related bug 
on the routers which route the student traffic.  Additionally alot of our 
traffic is now wireless traffic, and again this isn't IPv6 enabled.  Due to the 
fact we use vlan override, on our wireless network, and the wireless solution 
we use has very broken IPv6 which doesn't work with vlan override.

The 5.46% was quite good considering but what was even better was not a single 
service desk case related to IPv6.  In case anyone is interested these are the 
figures we captured via netflow on the campus border (not within the campus):

DNS Server stats:

IPv4 DNS Inbound:        2.7 GB (88.86%)
IPv6 DNS Inbound:       346.65 MB (11.14%)

IPv4 DNS Outbound:      1.41GB (92.85%)
IPv6 DNS Inbound:       111.22 (7.15%)



RADIUS Server stats (eduroam):

IPv4 RADIUS:     5.17MB (15.73%)
IPv6 RADIUS:    27.69MB (84.27%)


IPv6 Traffic:

Total Bytes Inbound:            35.47G
Total Bytes Outbound:   6.74G

Average bps Inbound:    3.53M
Average bps Outbound:   670.29k

Peak bps Inbound:               31.86M
Peak bps Outbound:              12.1M

95th percentile bps inbound:    9.44M
95th percentile bps outbound:   1.15M


IPv6 Services inbound:

http    -                       26.31GB (74.17% of total IPv6 traffic )
macromedia      -       7.19GB (20.26%)
udp     -                       791.35MB (2.18%)
https   -               582.98MB (1.6%)
dns     -                       346.55MB (0.95%)
ssh     -                       261.19MB (0.72%)

IPv6 Services Outbound:

ssh     -                       4.61GB (68.36%)
http    -                       1.12GB (16.64%)
udp -                   402.24MB (5.83%)
https -                 260.89MB (3.78%)
macromedia      -       228.29MB (3.31%)
dns     -                       111.35MB (1.61%)


Compared to IPv4:

Inbound IPv6 accounted for 0.4% of total traffic
Outbound IPv6 accounted for 0.15% of total traffic




---
Scott Armitage,
Senior IT Services Specialist (Networks and Security),
IT Services,
Loughborough University

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