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Overview of University Network Infrastructure: An In-Depth Look at Data Communication

This article, authored by Jacob Pagendarm, offers a comprehensive overview of the University's network infrastructure. It examines critical components such as core and edge routers, aggregation and distribution switches, and wireless access points (WAPs). The discussion covers the essential roles these devices play in facilitating communication across the campus. Details on fiber optics, including single-mode and multi-mode options, are provided, along with insights into server room operations and data closet management. This informative piece highlights the technological innovations driving network efficiency and reliability.

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Overview of University Network Infrastructure: An In-Depth Look at Data Communication

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  1. DATACOMMUNICATIONS An overview of the University’s network By Jacob Pagendarm

  2. How Important is the Network?

  3. Network Devices • Core Router-The backbone of our network. It forwards information to/from a building to the data center, the Internet or to another building. • Edge Router-It’s job is to forward campus information to/from the Internet. • Aggregation Switch-Takes information from the core router and forwards to distribution switches • Distribution Switch-Delivers information to the end-user, wireless access point or controller. • WAP-Wireless access point

  4. CISCO 6513 • Router that feeds fiber to all of the buildings on campus • Central core of the entire university network.

  5. Apogee’s core network Fiber patch panels to each building(BDF closets)

  6. Data Closet • Fiber feeds to data closets in each building • Fiber feeds to switches in closets • Each jack for the given building is activated from a patch or krone panel into the switch

  7. MSC Closet Rehab: BEFORE

  8. AFTER

  9. Switches • Most popular model is the Cisco 2950 • Fiber distribution switch in each BDF feeds to closets • Switching gives 100 Mb/s to each port • Copper GBIC connection gives 1 Gb/s to one port • GBIC ports are where fiber is fed to from fiber panel • Switches are stacked using GBICS and stacking cables • Some switches are POE(power over Ethernet) • Voice over IP • Currently 288 data closets throughout 100+ buildings on campus

  10. Fiber Optics • Single mode(SM): can run 1GB/s or 10GB/s • Multi mode(MM): can run 1GB/s @ • Aqua fiber(MM): run 10GB/s @ • SC vs. LC vs. ST vs. MTRJ

  11. WAPS • Currently 428 WAPs on network(all campuses) • Wireless access point activated on designated ports on switches (VLANS) • Uses power injectors or POE switches • Can broadcast multiple SSIDS

  12. Server Room • Different servers serve purposes ranging from email to data backup and storage • The power is all run underneath the floor • The fiber is run above the server cabinets • A halon system removes oxygen in case of fire(Unique to UA) • Hot and Cold rows

  13. 154 Terabytes of storage Fiber channels and NFS cannels Main fiber rack for server room

  14. College of NanoScience and Engineering • An Inside Look at CNSE

  15. NanoFab Network • Building was designed to have data closets unlike the academic buildings due to age • Data closets are well organized with state of the art cable management systems • Network infrastructure increases at an alarming rate per year

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