NETW208 Week 3 You Decide

We have discussed the IP address over the past weeks; we have carefully planned an IP

addressing scheme, the devices and media that we will use to communicate between the

Pittsburgh and Cleveland offices. The data link can be established with an OC – 3 connection and

with our routers we can access the Pittsburgh network with the secure VPN. This will allow us to

move the data between the two networks. The protocol we will use will be the Point-to-Point

protocol. Another protocol will not work is the SLIP protocol. Because it is way too slow for

our purposes.

The Point-to-Point Tunneling Protocol is a method for implementing virtual private

networks. PPTP uses control channel over TCP and GRE tunnel operating to encapsulate PPP

packets. The PPTP specification does not describe encryption or authentication features and

relies on the PPP protocol being tunneled to implement security functionality. We have that

covered with a digital security certificate and the PPTP connection from our router in Cleveland

and the router in Pittsburgh. This will allow the internet connection with our secure web server

and our network in Pittsburgh with an encrypted connection through the routers across the

internet to our offices.

The Synchronous Optical Networking, also known as SONET, is a standardized

multiplexing protocol that transfers multiple digital bit streams over optical fiber using highly

coherent light from light-emitting diodes. SONET allows for simultaneous transport of many

different circuits of differing origin within a single framing protocol, which simple means our

three OC-1's will easily work for our purposes. SONET is essentially protocol neutral and its

transport-oriented features. SONET is used for transporting ATM frames. The frames we will

use in our