Dear Sir or Madam,

I would like to know:

(a) For each 10 minute period on Sunday 12th October 2008,

(i) how many packets left the CUDN with a destination IP address in
the range 69.63.176.0 to 69.63.191.255?

(ii) what was the total number of bytes in the packets referred to
in (a)(i)?

(iii) how many packets entered the CUDN with a source IP address in
the range 69.63.176.0 to 69.63.191.255?

(iv) what was the total number of bytes in the packets referred to
in (a)(iii)?

To make the question more clear I envisage your answer will take
the form of a spreadsheet:

Time || Packets out || Bytes out || Packets in || Bytes in

00:00 to 00:10 || <insert numbers here> ...

00:10 to 00:20 || <insert numbers here> ...

...

(b) For each 10 minute period on Monday 13th October 2008,

(i) how many packets left the CUDN with a destination IP address in
the range 69.63.176.0 to 69.63.191.255?

(ii) what was the total number of bytes in the packets referred to
in (b)(i)?

(iii) how many packets entered the CUDN with a source IP address in
the range 69.63.176.0 to 69.63.191.255?

(iv) what was the total number of bytes in the packets referred to
in (b)(iii)?

If at the time you answer this request you no longer hold the
traffic data for the dates stated above, then please could you
answer the questions above in relation to an adjacent Sunday and
Monday of your choosing, and tell me which Sunday and Monday you
have chosen.

Yours faithfully,

Josh Walker

Dear Mr Walker,

Further to your request for information, please find enclosed the University's response.

Kind Regards
FOI Team

--------------------
University of Cambridge
Secretariat, The Old Schools
Trinity Lane, Cambridge, CB2 1TN

T: (01223 7)64142
F: (01223 3)32332
[email address]

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Dear Sir or Madam,

I am unhappy with the service I have received in relation to my
request.

As I'm sure you are aware Section 16 of the Freedom of Information
Act 2000 requires that is the duty of a public authority to provide
advice and assistance to persons who have made requests for
information to it. Your terse response: "We do not hold the
information requested." neither provides advice nor assistance on
what similar information you may hold, or indeed why you do not
hold the information requested.

When I submitted my request, I strongly believed that the Cambridge
Computer Emergency Response Team (CamCERT) [1] had access to the
information that I requested. Furthermore, I believed that it was
very likely that the information, or a backup of the information,
would still be held at the deadline for responding to my request.

If I am mistaken, and this information was never held by the
University, the University Computing Service, CamCERT, etc then I
expected you would of provided the reasonable advice of informing
me of this. If this is the case, please could you provide this
reasonable advice to me.

I appreciate that if the information was held at 10 minute
granularity (and every backup of that that you might of made), they
may have all been routinely deleted before my request was received,
or indeed between my request and your reply, and hence you would
not be able to provide the information at the granularity I asked
for. I expected that if this was the case, you would of provided
the reasonable advice of informing me what granularity would be
available, so that I could make a follow-up request. Could you
please provide this reasonable advice to me.

This is considered best practice as described in a practical
guidance document issued by the Information Commissioner's Office:
Destruction of requested information [2]. It says: "If information
was destroyed before a request was received, you can say that you
do not hold it but should explain why it was destroyed and advise
the applicant of any other available information."

Furthermore it goes on to say that "If information is held when a
FOIA request is received, you may be able to lawfully say that you
do not hold it if it would normally be destroyed before the
deadline for responding. However, you should as a matter of good
practice suspend any planned destruction and consider disclosure as
usual." I would also like to encourage you to follow this good
practice with future requests.

Yours sincerely,

Josh Walker

1. http://www.cam.ac.uk/cs/security/cert.html

2.
http://www.ico.gov.uk/upload/documents/l...

Dear Sir or Madam,

As I'm sure you are aware Section 45 of the Freedom of Information
Act 2000 refers to a Code of Practice issued by the Secretary of
State. This Code of Practice states: "Any written reply from the
applicant (including one transmitted by electronic means)
expressing dissatisfaction with an authority's response to a
request for information should be treated as a complaint". It also
states: "In all cases, complaints should be acknowledged promptly
and the complainant should be informed of the authority's target
date for determining the complaint."

Over two weeks ago now I expressed dissatisfaction with your
response to my FOI request. I have received no acknowledgement that
you are treating that dissatisfication as a complaint.

It is now clear to me that you are not following this Code of
Practice, and therefore please consider this email to be me
explicitly making a complaint regarding the University of
Cambridge's handling of my FOI request 'CUDN traffic data to and
from 69.63.176.0/20'.

Please pass this on to the person who conducts Freedom of
Information complaints.

A full history of my FOI request and all correspondence is
available on the Internet at this address:
http://www.whatdotheyknow.com/request/cu...

Yours sincerely,

Josh Walker

Dear Mr Walker,

Please find attached a response to your email of 10th November.

Please accept my apologies for any perceived delay in this reply; as I'm sure you'll appreciate, we
are a diverse organisation, and as such a number of parties from across the University are consulted
on such matters as these FOI requests.

Rest assured, I shall pass on your email to the relevant party.

Kind Regards
FOI Team

--------------------
University of Cambridge
Secretariat, The Old Schools
Trinity Lane, Cambridge, CB2 1TN

T: (01223 7)64142
F: (01223 3)32332
[email address]

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