DoIT Network Services Campus Network Presentation

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DoIT Network ServicesCampus Network Presentation

• Perry Brunelli
• DoIT
• Network Services

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In the Beginning . . . .

• 1980-82 Serial cables _at_ 9600 Baud
• 1983-84 RF Network
• 1985-89 Shared ethernets _at_10Mb Advent of
  Telnet
• 1990-95 1st routed network 100Mb
• Switched networks
• 1995-present ATM 600Mb access

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Services

• Campus-wide multicast
• Capability to stream cable TV channels
• Voice over IP capability (VoIP)
• Support for IP SAN (storage area network)
• Support for Virtual Private Networks (VPN)

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Challenges - QoS

• Quality of Service means providing the
  appropriate amount of bandwidth to ensure the
  success of a network application.
• QoS isn't important when loading a web page.
  Packets are queued until the transfer is
  completed and the page is subsequently displayed.
  In this instance, delay doesn't hinder session
  performance and is largely unnoticed.
• When delivering voice, video or other interactive
  sessions, delays are not tolerated. Once a
  connection is established, content streams over
  the network in real time, meaning that delays
  result in dropped voice or video.
• Providing these services without bandwidth
  guarantees or QoS is impossible.

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Challenges continued

• UWs distributed network cannot effectively
  support Quality of Service (QoS) or End-End
  management.
• High bandwidth demand applications need to
  coexist with streaming applications.
• Bandwidth requirements of funded research growing
  at a rapid rate.
• Expected bandwidth requirements exceed capacity
  of current network.

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Challenges Continued

• As we become increasingly dependent on network
  communications there is a need for improved
  reliability.

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Summary

• UW-Madison should build a network capable of
  supporting
• End-to-end management
• Bandwidth allocation / Quality of Service
• Advanced Network Monitoring capabilities
• Voice over IP / Video readiness
• Security
• Redundancy
• Centralized storage facilities

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Comparing the existing and new campus networks

• Ethernet
• 10Gb backbone capacity
• Redundant to IDF
• Management to faceplate
• QoS Capable
• HP Openview
• Defined standards

• ATM based
• 640Mb backbone capacity
• Limited redundancy
• Building or departmental handoff
• No QoS
• Dated management tools
• Lack of standards across campus

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Comparing the existing and new campus networks

• Expanded Wireless
• VPN remote access
• Centrally managed Firewall services
• Secured and updated
• Expanded Cat 5 horizontal wiring
• Fiber expanded and augmented with DWDM

• Wireless capability
• No VPN Service
• Distributed Firewall services
• Unsecured closets
• Limited Cat 5 horizontal wiring
• Limited Fiber

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The TOSA Foundation Gift

• Funding for the WAIL lab
• 2-1 matching funds as we purchase Cisco gear at
  45 educational discount.
• Cisco equipment purchases over three years,
  beginning July 1, 2002.
• Overall network project to span five years.

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Scheduling/Planning 1/2

• May 2002 Backbone Design Finalized
• Summer 2002 Core Gear acquisition, setup and
  configuration testing.
• Fall 2002 Core Gear installation to all
  supernodes/nodes.
• Fall 2002 Continued testing, modeling of a
  portion of the DoIT network changeover to new
  network.
• Winter 2003 Begin department integration

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Scheduling/Planning 2/2

• Recommended list of buildings/departments is
  being compiled based on criteria of wiring,
  fiber, and protocol conflict issues

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Standards

• Standards documents are being created to address
  issues from the walljack back through the
  IDF/MDFs.
• Wiring termination standards
• Equipment standards including network gear
• Physical security/access issues
• Change documentation (documenting changes as they
  occur)

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Qualifications

• DoIT will be reviewing and updating the training
  and standards for authorized users to work in the
  wiring closets
• Changes/updates in closets will be documented at
  a central point

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Network Electronics Standardin the IDF/MDF

• IDFs
• Cisco 3550s preferred
• Cisco 2950s acceptable
• MDFs
• Cisco 3550 gig switch
• Cisco 4000 w/supervisor III module
• Cisco 6500 w/supervisor II module
• Choice by DoIT dependent on the number of IDFs
  and users served out of the MDF

IDF Notes DoIT Network Services will soon be
publishing a set of standards for switch and IDF
rack configurations that will detail the
components that these switches will need in order
to take advantage of the new backbone. These
will be configured in a redundant fashion with a
gigabit primary link with a maximum gigabit
backup link.
This assumes that the closet infrastructure will
meet a minimum standard for racks, wiring, cable
management (both vertical and horizontal) and
properly sized and managed patch cables.
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Security Enhancements

• Improve the physical security of campus wiring
  spaces
• Review shared use spaces and look for ways to
  isolate wiring equipment
• Establish minimum equipment standards
• Initiate the training of authorized users of
  wiring spaces
• Secure access to wiring spaces

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Security Enhancements

• Increase campus standardization
• Provide greater uniformity of campus network
  procedures, including change and incident
  management
• Research network authentication

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Security Enhancements

• Establish security controls as part of the
  network
• Provide scalable firewall solutions
• Implement Virtual Private Networking
• Enhance logging and auditing of traffic over
  subnets

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Supporting the new network

• Monitoring
• Parallel project to upgrade our monitoring
  environment has been initiated.
• HP Openview
• Custom Flow Measurement Tools
• NOC procedural/environmental upgrades
• NOC staff training

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Supporting the new network

• Financial
• Different methods for funding the campus network
  are being researched
• FY03 costs will stay the same as FY02