Network Design Proposal
Network Requirements
ABC School Stats/User Counts
Having a current strength of approximately 845 students, ABC School provides education from Pre-Kindergarten to the 12th Grade. According to the requirements of The New York School District, 250 Curriculum computers along with 75 Administration computers are to be installed. The requirements for the wiring per room of layer 1 are that it should adjust a total of 25 computers, 24 of which will be used for the curriculum, whereas one will be used for administrative purposes.
WAN Design
The model for the WAN is 2 layers of hierarchy having a total of 3 hubs, one connecting the District Office or the Data Center, one the Service Center, and the remaining one connecting the Black Hawk School. A Frame Relay WAN will be responsible for providing the required internet services.
IP Addressing
For all the hosts, interconnection devices, and servers an IP addressing program will be developed which can be Class A, B, or C. respectively. Dynamic Host Configuration Protocol (DHCP) will be used by all the curriculum computers whereas static addresses will be utilized by the administrative ones.
Hardware/Software
Top quality communication alongside security should be the concern of the hardware and the software, adjusting for the requirements of the users as well as the redundancy.
LAN Design
Ethernet 10BaseT, 100BaseTX, and 100 BaseFX speeds must be supported by the LAN as well as establishing many IDFs and a MDF in the school. Administration and Curriculum should be the two segments of the LAN.
Security & Network Management
All applications should be protected by a dual firewall. Though the Administration Network will be allowed to access the Curriculum network, the Curriculum network will not be allowed to access the Administrator one. This can be achieved by utilizing the VLANs and/or ACLs. The security policy and anti-virus software should be present.
Section 1: The WAN Plan
This District will have 3 regional hubs, each connecting a total of 11 schools. New York District has 33 schools in total. The access to internet will be provided by the Data Center/District Office to the 11 schools using T1 lines and the other 2 hubs (Crockett, 2003).
WAN Implementation
Data Center/District Office consists of 8 T1's flowing in from the 2 hubs. Furthermore, 11 T1's are coming from those 11 schools respectively with T1 for the connection of the Internet. The handling capability should be of 20 T1 lines. 19 T1 lines which consist of 8 T1 lines from other hubs and 11 T1 lines for schools are supported by hubs of The ABC and Greenway C.O (One Stop Click, 2011; Power, 2002).
Internet Connectivity
A T1 Frame Relay line will be used for the Internet alongside the Pix 535 firewall that would permit access to the Ethernet PSTN Public Backbone. This will consist of one Master DNS server, one Master E-mail server, and one Apache Web server. There will be an Intrusion Detection System and ACLS at the router in the Data Office to stop any unauthorized Internet access. The Demilitarized Zone will be the space between the firewall and the router. This district will contain an Intranet Services Backbone which will have a Backup, Proxy, Database, E-mail, and Library, DNS, and Virus server. The hubs will provide access to the Internet to all these schools. Furthermore, a part-time internet access will also be available to the Community School in a remote location through ISDN (Integrated Services Digital Network) which is located in a distant location (One Stop Click, 2011; Power, 2002).
Section 2: IP Addressing Plan
A Class -- A address will be brought into use for the IP addressing which will enable it to stay hidden from unwanted hackers and users. 5 network addresses will be needed in each school, plus 8 bits will be borrowed from the address's host section which will result in 254 subnets that will have 65,534 hosts on each (ArrowMail., 2011; Power, 2002).
IP Addressing Scheme Summarized
• Class A Private Address
1. Borrowed Bits 8
2. Subnets 254
3. 65,534 Hosts every Subnet
4. Mask of subnet 255.255.0.0
• IP Address Network 10.0.0.0
• Added Security because of Private Address
• Supporting around 7 Subnets or Schools (ArrowMail., 2011; Power, 2002).
IP Addresses for Hubs & Schools
5 subnets will be allocated for every school respectively as indicated by the chart below (Learn Networking, 2008; Power, 2002).
ABC Network IP Addresses
10.6.0.0 Subnet has been designated to the curriculum network at ABC school, while 10.7.0.0 and 10.8.0.0 subnets have been designated...
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