Transcript lanisautility

A Model For Centralized Network
Support On The Campus
Basil Irwin
Senior Network Engineer
June 8, 1999
National Center for Atmospheric Research
Shouldn’t Campus LANs Be Treated
Like A Utility Service?
Basil Irwin
Senior Network Engineer
June 8, 1999
National Center for Atmospheric Research
Examples of Utility Services
• Examples of utility services
* Electricity distribution
* Telephone service
* Potable water supply
* Waste-water removal
* Natural gas distribution
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Utility Service Attributes
• Attributes of a utility service
* Provides an essential and/or indispensable service
* Universal service is required
* Universal interoperability standards required
* Universal service delivery standards required
* Operated by a central support organization
* Hierarchically architected with tiered service levels
* Universal and fair pricing required
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Campus LAN Attributes
• Attributes of today’s Campus LAN service
•
* Provides an essential and/or indispensable service
* Universal service is required
* Universal interoperability standards required
Desirable attributes of Campus LAN service
* Universal service delivery standards required
* Operated by a central support organization
* Hierarchically architected with tiered service levels
* Universal and fair pricing
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Campus LAN Attributes
• Based on these attributes, it looks to me like
the Campus LAN is a service utility
• Therefore, shouldn’t Campus LANs be funded
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and operated like other Campus service
utilities?
UCAR thinks so, and that’s the way we operate
our networks as one of our utility services
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The UCAR LAN Utility
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UCAR’s Budgetary & Political
Context
• UCAR serves, collaborates, and is governed by
its 63 member universities (R1 universities)
• UCAR consists of ~20 Department-sized
internal subdivisions that are semi-autonomous
• ~1,200 UCAR employees
• About $150,000,00 total funding for FY1999
• UCAR funding is a mixture of direct NSF
funding and grant funding
* About 2/3 direct and 1/3 grant
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UCAR’s Networking Context
• 9 buildings at 4 county-area sites
• ~1,200 local users
• ~2,500 local networked devices
• ~2,400 “standard” telecommunications outlets
• ~110 local subnetworks
• ~100 (intelligent) network switches, routers, etc.
• ~100 dial-in ports
• ~1,200 users at UCAR’s 63 R1 universities
* Connected via vBNS/Abilene/Commodity Internets
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Service Model For The UCAR
LAN Utility
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Customer-Operated
• UCAR LAN Utility is advised by a standing
•
advisory board of technical representatives from
all major UCAR Departments
* This is the “PUC” of the UCAR LAN Utility
Advisory board extremely valuable asset!
* Unloads spending priorities from the support group
* Develops consensus clout with higher management
» Regarding requests for spending
» Regarding technology deployment decisions
• Strong upper-management support!
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Services Provided
• All Layer1, Layer2, and Layer3 services
* Layer1: All physical cabling plant
* Layer2: All logical networking - VLANs/ELANs
* Layer3: All routing (99.9% IP)
* Layer4: Some host-configuration/performance
consulting
• All LAN, MAN, and WAN services
* Campus LANs
* Intersite MAN connections
* vBNS/Abilene/Commodity WAN connects
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Service Categories
• Standard Services
* “Free”: no chargebacks
• Premium Services
* Fixed chargebacks
• Special Services
* Negotiable: basically time and materials
• Department Services
* Internal Departmental support personnel
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Standard Services
• Includes all LAN, MAN, and WAN Layer1,
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Layer2, and Layer3 networking necessary
for, and benefiting, UCAR as a whole
Each office has a telecommunications outlet
(“TO” or ”wallplate”) with:
* 2 pairs of terminated MM fiber cables
* 4 terminated Cat5 cables
* 2 terminated Cat3 cables (for telephones)
Each office has one or more dedicated 10Base
and/or 100Base switch ports
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Standard Services (cont.)
• The LAN Utility responsibility ends at the
wallplate (almost)
• Departments free to attach what they want to
the wallplates, including network equipment at
their own risk
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Premium Services
• Things like FDDI, OC-3, OC-12 or GigE
to the desktop
• Standard chargebacks for such services
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Special Services
• Anything else anybody wants. Prices are
negotiable
• Includes “Emergency” (instant) service
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Services Not Provided
• System administration of PCs, Unix, etc.
* Completely distributed service model
• DNS
* Receives some central funding; ought to be part of
LAN Utility service
• Email
* Receives some central funding
• Web
* Receives some central funding
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Services Not Provided (cont.)
• Security
* This was set up as a Security Utility based on the
LAN Utility model
• Telephones and PBXes (except for the cabling
infrastructure, which is part of the LAN
Utility)
* Receives central funding, should be part of LAN
Utility
• Problems on the “other” side of the wallplate
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Service Resources
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Service Resources
• ~$2,400,000 FY1999 networking budget
• Total staff: 12 people
• Type of Staff
* 6 Network Engineers
» Perform design, operation, tuning, troubleshooting, etc.
* 4 Network Technicians
» Mainly Layer1 (cabling) construction
* 2 Administrative/Support Staff
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Funding Model
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Typical Utility Funding Models
• Usage Based
* Example: Long distance telephone service
» Fees based on minutes of service
• Flat Fee
* Example: Local telephone service
» Fees based on number of end-points installed
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UCAR Funding Model
• UCAR has an occupancy cost tax based on
square footage of space occupied
• This tax is levied to fund all service functions
• For FY2000 this will be $12.51/SF on 543,679
SF for a total of $12.2 million.
• Networking gets $2.9 million, or 24% of the tax
• Networking is approximately 2% of the total
FY2000 UCAR budget
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How Do UCAR’s Costs Compare?
• In 1996, Gartner Group estimated annual
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average corporate networking support costs
$3,270/desktop
In 1996, Forrester Research, Inc. estimated
each networked desktop cost $8,000/year to
maintain
UCAR’s networking cost is $1,200/device/year
or $2,200/employee/year
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More Information About
The UCAR Model
• “A Strategic Plan for UCAR Networking:
Welcome to the 21st Century”
• www.scd.ucar.edu/nets/Documents/strategy.html
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Conclusion
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Conclusion
• It wouldn’t be very effective or efficient if each
Campus Department or Project operated their
own water, electricity, or sewer systems, so why
does it make sense for them to fund and
operate their own LANs?
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The End!
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