Washignton School District
Cost Justification

Cost and Bandwidth Justification :

• The dual MSFC on two separated Catalyst 6509 with HSRP implementation for redundant and load sharing cost us about $132,074. 00. While the single chassis Catalyst 6509 with dual MSFC modules with the same technology deployed cost us about $122,675.00. The different is only $9399.00, but we gain a fully redundant at the MDF level, and exceed the bandwidth requirement (1Mb share versus 10Mb switch)

   Scalability and Adaptability :

• The Catalyst 6509 current black plane is 32Gps, and it is scalable to 256Gps at the price of $20,000.00 per chassis. Five to ten years from now, Mountain Sky can budget the IT department for this upgrade.
  In addition, the Mountain Sky has the luxury of migrating all servers to Gigabit Ethernet by buying more 8Gigabit Ethernet Modules with our team design proposal.

   Switching versus Routing :

• Rule of thumb of networking design is Switch as much as you can, Route when you need. Mountain Sky Network is a real s witching environment. Routing is only happened between Inter-Vlan and out to the Internet.

   HUBS versus Switches :

• If 24 port EthernetFast 10/100 unmanage LINKSYS hubs, costing $270 each, were used in the classrooms instead of the 24 port cisco C1924 Switches, then cost in 1669 data terminating points ( DTP) will be $2,315,320 while with Cisco Switches C1924 the cost is $3,491,965. 

  The savings using hubs is  $1,176,645, but  for future  growth in bandwith, the Hubs will need to be replaced by switches and the $2,315,320 million will be lost!

    Hub versus Switch

  
  

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