## (5) LAN Electronics Spreadsheet

### List & Costings of Devices/Equipment:

Location | Device | Model | Qty | Ports | Description | Unit Cost | Total Cost | School Serial Number(s)
MDF | Router | CISCO3661-AC | 1 |  | 6 Slot Moduler Router | $10,700.00 | $10,700.00 | ROUT-01
MDF | Router Module | NM-1FE-FX | 3 | SC Fibre | Fast Ethernet Module with Fibre Interface | $2,700.00 | $8,100.00 | ROUTM-01,ROUTM-02,ROUTM-03
MDF | Router Module | WIC-1DSU-T1 | 1 | T1 Connector | 1-Port T1/Fractional T1 DSU/CSU WAN Interface Card | $1,000.00 | $1,000.00 | ROUTM-04
MDF | Switch | WS-C4003-S1 | 3 | - | 3 Slot Moduler Switch | $6,995.00 | $20,985.00 | SWCH-01, SWCH-02, SWCH-03
MDF | Switch Module | WS-X4306-GB | 3 | 6 Gigabit Fibre | Module with 6 Gigabit Ports | $2,995.00 | $8,985.00 | SWCHM-01, SWCHM-02, SWCHM-03
MDF | Switch Module | WS-X4424-GB-RJ45 | 1 | 24 10/100/1000 | 24 of 10/100/1000 Autosensing Module (RJ45) | $6,995.00 | $6,995.00 | SWCHM-04
MDF | Patch Panel | - | 1 | 12 RJ45 | 12 Port RJ45 Patch Panel | $48.63 | $145.89 | PP12-01
IDF #A,#B,#CD | Switch | WS-C3548-XL | 3 | 48 10/100, 2 Gigabit | 48 Port Switch with 2 Gigabit Ports | $3,620.00 | $10,860.00 | SWCH-04, SWCH-05, SWCH-06
IDF #CD | Switch | WS-C3512-XL | 1 | 12 10/100, 2 Gigabit | 12 Port Switch with 2 Gigabit Ports | $1,830.00 | $1,830.00 | SWCH-07
IDF #A,#B,#CD | Patch Panel | - | 3 | 12 Gigabit | 12 Port Gigabit Patch Panel | $48.63 | $145.89 | PPGB12-01, PPGB12-02, PPGB12-03
IDF #A,#B,#CD | Patch Panel |  | 5 | 24 RJ45 | 24 Port RJ45 Patch Panel | $139.72 | $698.60 | PP24-01, PP24-02, PP24-03, PP24-04, PP24-05
IDF #CD | Patch Panel |  | 1 | 36 RJ45 | 36 Port RJ45 Patch Panel | $197.56 | $197.56 | PP36-01
All Rooms | Switch | CISCO1548U-DS | 99 | Ethernet | 8 port 10/100 Ethernet | $395.00 | $39,105.00 | SW0004-SW0103
Extras: |  |  |  |  |  |  |  |
MDF | Rackmount Kit | ACS-3660RM-19 | 1 | - | 19 Inch Rackmount Kit for a 3361 Series Router | $100.00 | $100.00 |
MDF | Cable | - | 1 | - | Cable for T1 Connection | $100.00 | $100.00 |
MDF | Rackmount Kit | - | 1 | - | Rackmount Kit for the 4003 Series Switch |  |  |
IDF #A,#B,#CD | Rackmount Kit | STK-RACKMOUNT-1RU | 4 | - | Rack Mount Kit for the Catalyst 3500 Series Switches | $25.00 | $100.00 |
IDF #CD | Cable | CAB-GS-50CM | 1 | - | Cable for interconnecting switches | $100.00 | $100.00 |
Admin Area | Server | - | 1 | - | Server for the ADMIN and Library | $10,000.00 | $10,000.00 |
|  |  |  |  |  | Total Cost | $120,147.94 |

### Design Decisions:

The reason for this choice of routers & switches are as follows:

- Modular Router - Allows for specific amount of Gigabit cabling and the T1 POP connection
- Modular Switches - Allows for necessary ports and cables
- Collisions are minimised due to all devices being switches or routers which creates micro-segmentation
- Patch panels included for completeness

The router and core switches (IDF switches) were chosen to support a higher speed backbone for the network, to reduce congestion problems throughout the network. The secondary reason was to allow for the potential inclusion of multimedia network traffic (to be used for the purposes of teaching the students) to be supported with minimal future upgrades required.

### Design Compromises

- Selecting a larger router would allow for higher speeds between VLAN's and for a potential increase in WAN connectivity upgrade (i.e. from a T1 connection to a T3 connection) & be able to support the increase in speed with minimal cost in upgrading.
  - The advantage is the saving in cost.
- CISCO1548U-DS is a real switch (and quite cheep) - but at a cost of $395 per classroom ($39,000 in total), proved a much more expensive option than using (inexpensive) hubs.
  - The benefit is dedicated bandwith (100 Mbps!) to each student computer - every single computer in Acasia is now its own bandwidth domain.
- In retrospect, we probably should have gone with hubs in each classroom and the money this saved could have gone towards a more expensive router (with better upgradability potential).