DIAD can deliver services utilizing any of these methods anywhere in the world, using a variety of circuit types, speeds and local vendors. DIAD controls, manages and bills for these services so you have one address responsible for your entire enterprise.
The LAN is comprised of multiple devices connected to each other. Each device has a network port attached to copper or fiber cabling that connects to a centralized switch.
The switch manages the data flow between all the devices on the network. The devices can communicate with each other only, not with devices that are not on the same wired network.
WANs were created to mimic the functionality of LANs and their privacy. This is accomplished today by employing one of three methods.
Private CircuitsVPNMPLSDIAD can deliver services utilizing any of these methods anywhere in the world, using a variety of circuit types, speeds and local vendors. DIAD controls, manages and bills for these services so you have one address responsible for your entire enterprise.
Private Circuits deployed over wide areas most resemble the LAN's privacy because of the private nature of the circuit.
These private circuits are not exactly like the wires in a LAN. In a LAN, you can run a wire from room to room. In a WAN, the wire has to stretch from building A to building B, sometimes next door sometimes in another continent.
The circuit must be created by stringing a bunch of physical circuits together and connecting them at meeting points with switches.
A method was devised to allow an entity using the internet to separate some of its data communication from the rest of the world on the internet.
This is done by creating VPN "tunnels" between locations and encrypting the traffic that goes over these tunnels.
A tunnel in this context means a designated IP on side A which always sends data to a designated IP on side B.
This works but there are always issues that crop up, including broken tunnels and hackers to mention a few.
MPLS is a layer 3 routing protocol which uses labels in the header of each packet to route the packet.
All the routers in the environment have to communicate with each other for this to work.
This becomes a challenge when traversing the internet. The internet is designed to have all of routers on the internet talk to each other so that anyone can reach anyone.
MPLS Networks, therefore are specific to each vendor. Verizon's MPLS network only works over Verizon circuits. AT&T's MPLS network only works over AT&T's network.