Transcript Networking in Nacogdoches

Networking in Nacogdoches
Stephen F. Austin State University
www.sfasu.edu
John Garner
Networking in Naconowhere
• Challenges :
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Geographically remote location
Small staff ( 2, now 4 )
No Budget
Rapidly Growing Networking Needs
Existing network overloaded, becoming unstable
Opportunities
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Able to grow and retain quality staff
Solid network design to grow from
Achieved sustained funding
Began campus upgrade in 1997
Incremental, phased upgrade in progress
Then - 1996
• Alantec Powerhubs, FDDI,and 10 mps
ethernet at layer 3 for core
• MMAC hubs for distribution layer
• Telephone wiring for data ( Cat 3 or less )
• IP, IPX, Appletalk, DECnet etc etc etc
How ?
• ATM or 100 mps ethernet ( 802.3z not yet )
• Who ? Cabletron, 3Com,
Bay, Fore or Cisco ?
Need switched faster than 10 with
scalabilty – ATM too $$ and complex
looking for gigabit ethernet
Need layer 3 on the core
And How
• Documented existing network
• Deployed management tools – Intermapper
and Spectrum Element Manager
• Identified network overloads and source of
outages ( ZIP storms etc )
• Justified need for imperative network
upgrade = funding
The Process 1997 - 1998
• Designed upgrade plan and path
• Deployed one Cat 5500 for Layer 3 core at
100 mps May 1998 ( VLANS ! )
• Deployed Cat 2900s at distribution layer for
100 mps switched access to high use
segments, initially connected MMACs to
2900s, migrated end user connections to
switches
The Process 1998 - 2000…
• Deployed two more Cat 5500 switches for Layer 3
at 100mps, more 2900’s, removed Powerhubs
• Secured funding for wiring upgrades to Cat5,
standardized wiring and jacks for voice and data
• Began the ‘Residence Hall’ Project – providing
switched 10/100 to each pillow ( 4500 + )
• Scaled internet access from 1 T1 to 2 T1’s
• Joined Internet 2, began peering at Texas Gigapop
January 1999 via SBC DS-3 ( with a lotta help
from our friends at UH, Rice, TAMU)
And – Remote Access
• Upgrades from 2400 baud modems to Shiva
Lanrovers ( 48 to 64 to 128 ports )
• Then from Lanrovers to AS5300’s
• Now four 96 port AS5300’s for dialup
access from off campus students, faculty
and staff
• Cable modems and DSL at Last !
• What Next ?
2000 - 2002
• Continued wiring upgrades moving
connections from shared media to switches
• Build out of Residence Hall network
• Deployed Gigabit on 5500’s, acquired 6509
• Scaling commodity Internet access
• Number and needs of applications rapidly
growing, trying to stay a step ahead
And Now - 2002
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Approximately 10,000 node ethernet.
Gigabit backbone, Cat 6509 and 5500 core
IP only on the backbone ( almost ;- )
21 mps commodity internet access ( 150 miles )
802.11b pilot underway ( LEAP )
VOIP pilot underway
VPN deployed
H.323 Video in production for classes
And Here We Are
• Residence Hall project 90% complete,
segmented from rest of campus
• How do we provide the access our students
would like to have and think they deserve ?
• How do we provide secure and reliable
access for our production needs ?
• How can we predict and prepare for future
needs and applications ?
New Challenges
• Funding, Acquiring and Managing Internet
Bandwidth ( P2P, End to End, etc )
• Where is that $10k/ month gigabit access ?
• Providing secure access
• Developing partnerships
• Digital Millennium Copyright Act
• Integrating and coordination with several
initiatives – NETNet, K-20, regional peering
Challenges - Opportunities
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Staying ahead of our customers
Retaining, training and growing quality staff
Managing the Enterprise – need good tools
Multicast
IPv6
QoS
Security
Where do we go from here (strategery) ?