Difference between revisions of "Glasgow (10 Questions)"

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Latest revision as of 20:56, 16 April 2007

Question 1

Provide the name and contact details of your local (Departmental) and Institutional network support staff.

  • My Departmental network support contact is: Shane Kelly (s.kelly at physics.gla.ac.uk)
  • My Institutional network support contact is: Colin Cooper (colin at compserv.gla.ac.uk

Question 2

Provide details of the responsibilities, together with the demarcation of those responsibilities, of your local and Institutional network support staff.

  • The departmental contact is responsible for: Building hardware, faults, wiring, internal routing
  • The institutional contact is responsible for: DNS, JANET connectivity, border routers

Question 3

What is a Regional Network Operator (RNO), and why does this matter to you?

  • An RNO is: Us. Glasgow University is an Operating Agent for the Clydenet RNO.
  • I care because: It's our connectivity.

Question 4

What is SuperJANET4? And more importantly what is SuperJANET5?

  • SuperJANET4 is: The current production network.
  • SuperJANET5 is: The next-generation production network.

Questions 5, 6, 7 and 9 (part)

File:Network-diagram.png

Question 8

What is the average and peak traffic flow between your local (Departmental) network and the Institutional network?

  • Average traffic:
  • Peak traffic:

What is the average and peak traffic flow between your Institutional network and the RNO?

  • Average traffic: 100-150 Mbit/sec
  • Peak traffic: Have seen 500Mbit under tests.

What is the total capacity of your Institutional connection to the RNO?

  • Our total capacity is: 1Gbit

What are the upgrade plans for your local (Departmental) network; your Institutional network and the network run by the RNO?

  • Departmental plans: Potential for light path into building.
  • Institutional plans: Campus backbone to 10Gbit over time
  • RNO plans: Enmeshed with SuperJANET 5 deployment

Question 9

Do you believe in IS Security? Does your Institute believe in IS Security?

  • I'm a believer: YES
  • We're collective believers: YES

Do you believe in firewalls? Does your Institute believe in firewalls?

  • I'm a believer: YES
  • We're collective believers: YES, although we're more interested in DMZ'ing the whole grid operation.

Provide information of how changes are made to the rule set of the firewall.

  • Firewall rules are changed by: Computing Service

Provide a note of the capacity of this device and what happens when that capacity is exceeded.

  • The capacity is: That of the router.
  • When it goes over-capacity, the following happens: No new connections can be established, but established connections appear to continue to function.

Question 10

What is the best performance you can achieve from your end-system to an equivalent system located in some geographically remote (and friendly!) Institute?

  • Best performance is: This requires real-world testing.

For your end-system:

Do you understand the kernel, the bus structure; the NIC; and the disk system?
  • I understand: NO
Do you understand TCP tuning and what it can do for you?
  • I understand: NO
Do you understand your application and what it can do to your performance?
  • I understand: NO