LAN User Requirements Document

[ Site LAN Wiring Plan & Physical Topology | Site LAN Logical Topology | Wiring Closet Diagrams | LAN Electronics Spreadsheet | LAN Media Spreadsheet | IGRP Implementation | ACL Implementation | IPX Implementation | LAN Pros & Cons | Back to Main]

A local area network is a short distance network to connect a group of computers with in a small geographical area (within a office or building).

 

General Requirements:

 

bullet Local Area Network (LANs) build at each site
bullet Wide Area Network (WANs) provide connection to every site
bullet Internet can be access any site within the school
bullet Network implementation will have to continue to be functional for a minimum of 7-10 years
bullet All design consideration include:
bullet 100x (times) growth in the LAN throughput
bullet 2x (times) growth in the WAN core throughput
bullet 10x (times) growth in the District Internet Connection throughput
bullet LAN systems Initial implementation design require:
bullet 1 Mbps to every host inside the network
bullet 100 Mbps to the sever host inside the network
bullet The OSI layer 3 and layer 4 protocols allowed:
bullet Transmission Control Protocol (TCP) / Internet Protocol (IP)
bullet Novell IPX

 

Wide Area Network (WANs):

 

bullet Connect all school and administrative offices with the district for the purpose of delivering data
bullet 3 regional Hubs at the District office / Data center, Service center and Shaw butte elementary of forming a fast WAN core network
bullet TCP / IP is the only network protocol is acceptable to traverse the district WAN
bullet Other protocol will be installed at the individual sites using routers
bullet Routers are installed at each WAN core location
bullet Provide though the District office and Data center though a Frame relay WAN link if connect to the outside network or Internet.
bullet Not allow any other connections because is for security reson

 

 

 

 

Local Area Network (LANs):

 

bullet Local area network segments will be implemented in:
bullet Each school site
bullet District office
bullet The transport speed required:
bullet Ethernet 10Base-T
bullet Ethernet 100Base-TX
bullet Ethernet 100Base-FX
bullet Horizontal cabling
bullet CAT-5 UTP be tested to accommodate 100 Mbps
bullet Vertical (Backbone) cabling
bullet CAT-5 UTP
bullet Fiber optic multi-mode cable
bullet Cabling infrastructure:
bullet TIA/EIA 568-A
bullet TIA/EIA 569
bullet Site LANs
bullet Student/curriculum usage
bullet Administrative usage
bullet Ethernet LAN switching work on LAN infrastructure
bullet Each location have one Main Distribution Facility (MDF) room:
bullet The center point to which all LAN cabling be terminated
bullet The Point of presence (POP) for the WAN connection
bullet Routers and LAN switch are in MDF room
bullet IDF will be connected directly to the MDF in a STAR or EXTENDED STAR topology
bullet Networked room requiring connection to network:
bullet 24 workstations and 4 CAT-5 UTP runs for data
bullet One at the teacher’s room
bullet Cable runs closest to the MDF and IDF
bullet Single wiring POP per room
bullet Data services distributed within the room via decorative wire molding

 

SERVERS AND FUNCTIONS:

 

bullet DOMAIN NAMES SERVICE and EMAIL SERVICES
bullet Implemented in a hierarchical fashion with all services located at the master sever
bullet District Hub location will contain a DNS server support serviced out of location
bullet School site contain a host for DNS and Email services
bullet All regional servers will have the capability to communicate
bullet District Master server should have the ability to query regional servers
bullet ADMINISTRATIVE SERVER at each school
bullet Running TCP/IP as OSI layer 3 and 4protocols
bullet Only available for teacher’s and staff
bullet LIBRARY SERVER
bullet Online library research
bullet Running TCP/IP as OSI layer 3 and 4 protocols
bullet Available to anyone at school site
bullet APPLICATION SERVER in a central server at each school location
bullet General application such as MS words, MS PowerPoint etc…
bullet Running TCP/IP as OSI layer 3 and 4 protocols
bullet Available to anyone at school site
bullet OTHER SERVERS
bullet Placed according to user group access needs

 

ADDRESSING AND NETWORK MANAGEMENT:

 

bullet TCP/IP addressing and naming convention scheme
bullet All hosts
bullet Sever
bullet Network interconnection devices
bullet Administrated by District Office
bullet All computers on the network have a static address, curriculum computers obtain address by using Dynamic host configuration protocol (DHCP)
bullet Each site should have a sever running the DHCP
bullet Master network management host at District Office will have total management rights
bullet Can manage all devices
bullet Serve as the router configuration host
bullet Each region location (Hub) will contain a regional network management host for its area
bullet District Office maintain the super user passwords for all devices and configuration changes should be authorized from the District Office

 

SECURITY:

 

bullet Internet Connectivity will utilize a double firewall implementation
bullet In the District security model, the network will be divided into 3 logical network classifications
bullet Administrative
bullet Curriculum
bullet External with secured interconnections between them
bullet All traffic from the curriculum LANs will be prohibited on the administration LAN by utilizing Access Control Lists (ACLs) on the routers
bullet A user ID and password policy will be published and enforced on all computers in the District

 

INTERNET CONNECTIVITY:

 

bullet District Office being the single point of contact for all schools and organizations within the district
bullet Internet connection will utilize double firewall implementation with a public network (Ethernet backbone)
bullet Protected via Access Control Lists (ACLs) on the routers that make up the double firewall architecture
bullet Connectivity to the Internet, E-mail and DNS sever will communicate freely