London, 17 January 2008

1. Technical Statistics
What they tell us, and what they don’t
Ian A.Young, SDSS London, 17th Jan 2008

2. Sources
• Federation web site logs
• Metadata download logs
• WAYF access logs
• Membership statistics
• Metadata statistics
2

3. Federation Web Site
Pages per day (average)
3,000
2,500
2,000
1,500
1,000
500
May07
Feb07
Mar07
Jun07
Jul07
Nov07
Apr07
Aug07
Sep07
Oct07
Dec07
Jan08
3

4. Federation Web Site
• We’re seeing about 1500 page views per
day at present: significant use
• That has been pretty stable for 11 months,
although federation itself has grown
• Perhaps people use the site when they’re
joining, but not afterwards?
4

5. Membership
Just SP
9%
Just IdP IdP + SP
22% 15%
Gateway
5%
Membership alone
49%
Data 11-Jan-2007
5

6. Membership
• Many members have both IdP and SP entities
• may be for testing or for collaboration
• Half of members have no participation
• Good awareness, bad deployment?
• Planning on gateway use only?
• “Gateway members” beginning to show up
6

7. Browser Certificates
JANET SCS
37%
SDSS CA
19%
Other
5%
e-Science CA
5%
VeriSign Thawte
8% 13%
GlobalSign
12%
(ignoring failures) Data 12-Jan-2007
7

8. Browser Certificates
JANET SCS SDSS CA
28% 15%
Thawte
10%
GlobalSign
9%
(failed)
VeriSign
25%
6%
e-Science CA
Other
4%
4%
(including failures) Data 12-Jan-2007
8

9. IdP Trust Certificates
JANET SCS
46%
e-Science CA
3%
SDSS CA
7% GlobalSign
25%
VeriSign
7%
Thawte
13%
(ignoring failures) Data 12-Jan-2007
9

10. IdP Trust Certificates
(failed)
18%
JANET SCS
(broken) 36%
4%
e-Science CA
3%
VeriSign
5%
SDSS CA
5%
Thawte
10% GlobalSign
19%
(including failures) Data 12-Jan-2007
10

11. Certificates
• JANET SCS being widely used
• Significant number of entities offline
• Small number of IdPs “just broken”
• No way to survey SP trust certificates

12. Software
Shibboleth Other
96% 4%
Data 12-Jan-2007
12

13. Software
• Shibboleth dominates
• Almost all 1.3: only 3×1.2, 2×2.0
• If other software supported large scale
federation, more people might use it.
• Need to determine how much to let
technical holes in other software hold us
back

14. Questions?