Washington District Networking Project Presented by Pat Kearney Pauric Fahey Seamus Leyden

FLK team Responsible for design of R.E. Miller LAN Our goals and implementation. Terms of reference and parameters LAN requirements Student Student Lecturing and administrators Lecturing and administrators

Introduction Overall Goals Future requirements Physical Layout of Project Physical design Physical design Design goals of LAN Collisions

Introduction Diagram of MDF Diagram of classroom wiring closet SwitchingVLANs Routing protocols Configuring IGRP Configuring IGRP Diagram of topology

Introduction Servers DNS and DNS and Administrative server Administrative server Library server Library server Application server Application server Addressing scheme Network management Connection to internet Security and Backups

Overall Goals Design and Implementation of Enterprise Wide Network Include LANs at several sites R.E.Miller R.E.Miller etc etc Network must be functional for 10 years Provide for 100% growth in LAN

Design goals of LAN Functionality Network designed must work Network designed must workScalability Must be capable of growth Must be capable of growthAdaptability Must be able to accommodate new technologies Must be able to accommodate new technologiesManageability Design should accommodate management and monitoring to ensure stability of network Design should accommodate management and monitoring to ensure stability of network

Physical Layout of Project Map of overall School

Topology Location of MDF and IDFs Device requirements Hubs Hubs Switches Switches Routers Routers Other stuff Other stuff

Physical design Cabling Cat 5 UTP Cat 5 UTP Fiber Optic Fiber Optic Vertical cross connects backbone Vertical cross connects backbone Carries all data between IDF s and MDF[Fiber] Horizontal cross connects Horizontal cross connects Connects hosts to wiring closet

Diagram of topology

Diagram of IDF 1

Diagram of MDF

Diagram of classroom wiring closet

Bandwidth and Protocol Requirements 1 Mbps to all computers on network Absolute minimum Absolute minimum 100Mb NIC on each machine 100Mb NIC on each machine 100 Mbps to all servers Routed protocol TCP/IP TCP/IP

LAN System used Ethernet Csma/cd Csma/cd LAN switching infrastructure Encourage migration to faster access speeds [more bw] for future growth Encourage migration to faster access speeds [more bw] for future growth Speeds 10baseT,100baseT,and 1000baseFX All cabling must comply with Eia/Tia 568

Collisions Csma/cd has one major drawback Collisions Collisions High internet use by students Answer Switches Switches Break up collision domain [broadcast domain remains however] Broadcast domain broken up by vlan.

VLANS Two VLANS are required Curriculum Student StudentAdministrative Teachers, Admin staff Teachers, Admin staff

Routing protocols IGRP Ensure network is stable Ensure network is stable No routing loops No routing loops Count to infinity Split horizon Hold down timers Poison reverse updates Rapid convergence important Rapid convergence important

Configuring IGRP Done at global config mode Router(config)# router igrp 108 Router(config)# router igrp 108 Network Network Network Network This configures autonomous system 108 to send igrp updates to the 2 networks specified.

Servers Dns AdministrationLibraryApplication Other servers required if any

DNS and Enterprise server in both cases located in mdf Host needed i.e. local post office This will maintain a complete directory of staff and students at site This will maintain a complete directory of staff and students at site

Administrative server Will track students Attendance Attendance Grading Grading Other administrative functions Will run TCP/IP Available only to staff and teachers

Library Server Available to anyone on site Must facilitate automated library information and retrieval system Online curricular research Online curricular research Will run TCP/IP as layer 3 and 4 protocols

Application server Word processing Spreadsheets Presentation software Client software to access personnel, student records, admin IS etc.

Addressing scheme Outline of scheme proposed

Addressing scheme Lecturer's Machine Lecturer's Machine 10.x.x.1to10.x.x.3 10.x.x.1to10.x.x.3 Network Printers Network Printers 10.x.x.4to10.x.x.7 10.x.x.4to10.x.x.7 Servers Servers 10.x.x.8to10.x.x x.x.8to10.x.x.15 Administration Administration 10.x.x.16to10.x.x x.x.16to10.x.x.63 Student's Student's 10.x.x.64to 10.x.x x.x.64to 10.x.x.128

Example of Room no`s

Connecting to the WAN Wan is accessed via SHAW BUTTE Provides access to internet School web site at SHAW BUTTE Access to central district services Access for Network Management

Network management Via SNMP software located at central site Router and switch configurations to be stored on central site office and configurations to be downloaded to Miller LAN across network

Connection to internet Network Address Translation [NAT] ACL's needed here These will be controlled at district office These will be controlled at district office Connectivity to be provided through district office which is single point of contact for all schools in project. All computers on site to have internet access

ACL’s Required Students will be restricted to internet only and DNS service. Students will be allowed send and receive . No unauthorised, incoming FTP allowed through the router. Full access allowed for teachers and Administrators.

Security Double firewall implementation Pix firewall Pix firewall Plus one other Plus one other All unauthorized external connections to be prohibited At district level the network will be divided into 3 logical classifications with secured interconnection Admin Admin Curriculum Curriculum External External

Backups Incremental backups will cater for point in time recovery Daily differential backups will be scheduled for time when network is idle say midnight Weekly backups scheduled for Friday nights