- 1 -

Networking costs Networking costs

Estimation of costs for campusesEstimation of costs for campuses

Jean-Paul Le GuignerJean-Paul Le Guigner

Jplg@cru.frJplg@cru.fr

ContributorsContributors

Brian Gilmore (Edindburg university)Brian Gilmore (Edindburg university)

David Williams (Terena and CERN)David Williams (Terena and CERN)

Jean-Paul Le Guigner (Universities in France)Jean-Paul Le Guigner (Universities in France)

If you strongly disagree and wish to punch some one in the face don’t look elsewhere

The goal The goal

• Estimation of the costs for :Estimation of the costs for :

• the different components of campus networking

• supporting teams

• connectivity to the NREN and the Internet.

Varies from country to country(need more work) Almost deterministic

if agreement on rulesDepend on thecommittment ofthe university and the extend of services provided by the team

Assumptions and guidelinesAssumptions and guidelines

One campusOne campus

medium size (in the european standard)

15000 undergraduate students

1500 staff (with post-graduate)

10 000 installed Ethernet ports

5 000 active simultaneously

Costs are expressed by installed ports (wired)Costs are expressed by installed ports (wired)

DepreciationDepreciation

Cabling (local, inter-building, MANs, …) 15 years,

Equipment 5 years.

Items of cost Items of cost (if you had to pay for all)(if you had to pay for all)

Cabling the proximity (wired, wireless)Cabling the proximity (wired, wireless)

Interconnecting buildings to reach the core networkInterconnecting buildings to reach the core network

Equipments :Equipments :

Switches from local ports to network core

Core routers, switches, security and basic services equipments

Personnel Personnel (installation, supervision, maintenance, services)(installation, supervision, maintenance, services)

+[MANs, [Regional network]] , NREN

NREN

Res. & Educ.Internet

Internet

Very simple case Total cost = campus costs + NREN costs!

Includes GEANTand CIT

NREN

Res. & Educ.Internet

Internet

MAN

Leased circuit

A bit more complex : add the NREN costs + MAN costs and even in some cases leased circuits.

Regional network

MAN

NREN

Res. & Educ.Internet

Internet

Even more complicated forSome countries (France, Spain, …) Need to add costs of regional nets.

Details Details (you can read in deliverable D18)(you can read in deliverable D18)

Cost element

Initial per-port

investment

Number ofyears for

depreciationAnnual

per-port cost

Cabling from the office to the local switch 180-250 15 12-16

Optical fibre infrastructure from the local switch to the network core 25-50 15 2-3

Share of switches from port to network core 40 5 8

Share of main router and main switches plus energy, cooling, security equipment 20-30 5 4-6

Maintenance of campus equipment 1 2

Inter-campus optical fibre (MAN) 15 15 1

Inter-campus equipment 5 5 1

Total annual hardware cost per active port for campus (plus MAN access to NREN PoP, if necessary) 30-37

Details Details (you can read in deliverable D18)(you can read in deliverable D18)

Cost element

Initial per-port

investment

Number ofyears for

depreciation

Annual per-port

cost

Personnel for maintenance, installation, services, security, … 1 25-50

Total annual cost per active port for campus, including personnel. 55-87

NREN cost per active Ethernet connection 1 25

Total annual cost per active port for campus including NREN connectivity 80-112

Regional network cost (if any) per active Ethernet connection 1 3(?)

Wireless access from the office to the local switch – can sometimes be an alternative to cabled access 30 5 6

Remarks (1)Remarks (1)

All the numbers proposed may be subject for discussionAll the numbers proposed may be subject for discussion

particularly NRENs and Regional network costs per port

and the cost of supporting teams

Wireless will soon spread all around the campuses Wireless will soon spread all around the campuses

this will lower the costs a bit but not so much actually

and security is still an issue, which put constraints on the network architecture and the personnel in charge

wired (copper or even fiber) will still be necessary for medium and high levels of usage.

Remarks (2)Remarks (2)

Personnel costs is one of the major item in the list and if we Personnel costs is one of the major item in the list and if we want to have well managed, reliable and secured want to have well managed, reliable and secured networking with up to date technology it’s not going to networking with up to date technology it’s not going to decrease.decrease.

Smaller sites need to spend even more on this chapter to get real good expertise. They of course can share expertise and services with others (easy to say ).

That’s the end

for me (and today)

not for this study may be.