In this presentation describe about needs of networks and access

1. Accessing
Network Needs

2. • The first step in network design should be to gather() data
such as the corporate structure, the current topology, &
applications in use, information flows within the company
,the budget & the resource available.
• Analyze the customers’ business & technical goals.
• Determine what new applications & services must be
supported by the new network design.
• Discuss the criteria for the success of the internetwork
with your customer.

3. Develop the structure of the new internetwork.
• Determine the type of network that best fits a company ’s
needs.
• Choose the appropriate media & hardware with which to
construct a successful network.
• Design a scalable & simple topology , determine the hard &
software to be deployed & select the network management
strategy.
• Estimate the expected performance of the new internetwork
using simulation & modeling tools.

4. • Access the costs of your design.
• Implement your design.
• Monitor your new internetwork. Is it working like you
expected? Is the utilization on all links like you expected?

5. Network Size & Scale
• Scale is usually the first & most important determination in
network planning as it will often determine your other
decisions.
• Most often we need to focus on the two or three network
scales that impact small & mid-sized organizations (LANs,
WANs, & CANs).
• A local area network(LAN) is designed & implemented in a
single building or office. Its primary function is the
interconnection of the computing resource within a single
organization.

6. Network Size & Scale
• A wide area network(WAN)connects a single office or branch
LAN to its parent organization ’s network & all the millions
of networks that together make up the Internet .WAN spans
across wide geographical boundaries(metropolitan, regional ,
or national).
• A campus area network(CAN)connects multiple LANs
belonging to the same organization when they ’re in close
geographic distance. As with WANs, an organization can
build its own CAN, but most opt to lease facilities from their
ISPs(Internet service provider).

7. Application
Decide on the applications requirements in the network based
on following factors:
• How many applications will be installed & accessed?
• Where they will be installed? On Server or at client side?
• Who can access which application?
• Establish authentication & authorization procedure required
for access permissions for applications in the network?

8. Users
Users are one of the most important stack holder for any
network.
• Decide how many users will be in the network?
• How many Roles & rights to manages?
• How to create & implement groups & establish policies?

9. Network Services
This point focus on the services the network is to provide base
on the company need. This may include different network
services like:
• File sharing
• Mail Server
• Fax Service
• Directory Service
• Disk storage

10. • Disk Storage.
• Print Sharing.
• Web Hosting & Deployment.
• Database Sharing.

11. Security & Safety
• Server-based networks are also more secure than peer-to-peer
networks.
• With a peer-to-peer network, all resources are shared equally
across the network.
• Security is often the primary reason for choosing a server –
based approach to networking.
• In a server-based environment, one administrator who sets the
policy & applies it to every user on the network can mange
security.