2.1. 4.3.0 Identification of LAN design requirement
ü High speed connectivity to access layer switch
ü Scalability(support data, voice and video)
ü Availability(24x7)
ü Manageability(VLAN, Telnet)
ü Security(implementation of VLAN,ACL, Port security)
ü High speed redundant links between switches on LAN and the
access layer devices
ü Identification of available hardware for LAN
2.2. 4.3.1 Equipment features
ü 3X1841 Routers (Main, Admin, Academic)
ü 12XSwitches (Admin, Directors, library, academic, lab_201,
lab_203, ACE,LB_2,LB_3)
ü Server( DNS,DHCP)
ü 4XWireless router (Academic, Library,Law,Server1)
ü IP telephone
4.3.2 Design Redundancy
ü Use of multiple layer 2 link to increase available
bandwidth.
ü Design that incorporate redundancy by using layer 3
switches.
ü Implementation of routing protocol.
4.4 Existing
Network
4.4.1 Current Network equipment
In the current network we have the following devices with serve
the campus:
ü 2 HP Switches in the sever room
ü 1 HP switch in library
ü 1 PH switch in law school
ü 3 Linksys (Cisco) WRT300N wireless router (AC-AP)
4.4.2 Physical configuration state
Under physical we have the following;
ü Locate in 6 building (LB, Academics, BLD, ACE, Library and
Directors office).
ü LAN cable in both offices is CAT6 Ethernet.
ü Flat network without redundancy.
ü The current network is inadequate for growth.
ü 1 configured VLAN management.
ü Addressing and Naming are inconstancy and poorly.
ü 25 PCs connected via wireless router (AC-AP) in
library
The figure bellow shows the physical configuration state
Figure 4.1: JKUAT Karen network building
Figure 4.2: physical network building
Note: connect cable used in the current network are;
1. Between switch to switch we have UTP cable (crossover
cable)
2. Between core switch and normal switches we have Fiber optic
cable.
Physical network design involves the selection of LAN and WAN
technologies for campus and enterprise network designs. Physical Network
Design,» is to give you information about the scalability, performance,
affordability, and manageability characteristics of typical options, to help
you make the right selections for your particular customer. The cabling that
connects buildings is exposed to more physical hazards than the cabling within
buildings. Fig 4 shows how different switches connect from different building
to the core switch.
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