Judul : Private Lines and Virtual Private Networks
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Private Lines and Virtual Private Networks
Author: John SheplerBusinesses often require a private line to communicate between headquarters and offices, factories and warehouses, retail concessions or suppliers. Reliable connectivity with security and transparency is paramount. Perfect Personal Line gives you the same experience as your local network.
Classic point-to-point staff lines.Phone companies have offered private lines since the analog days. Security radio stations and studio transmitter communications systems are examples of private lines, which were often just pairs of wires running directly from one location to another through a central office.
Digital Communications introduced a T1 point-to-point private line that serves the same purpose. Bits enter at one end and exit at the other. T1 lines offer private lines at 1.5 Mbps, DS3 at 45 Mbps, and OC3 at 155 Mbps. Latency and packet loss are low. The speed is determined by the capacity of the line.
These private lines are well suited to connect the head office as a node with the branch offices. Each branch office requires a line with a central switch or router that directs traffic. The lines themselves serve as very, very long network cables to connect LANs in different locations.
Private ethernet line
Since Ethernet is the protocol used in almost all LANs today, it makes sense to use the same protocol for private lines. The previously mentioned telecom solutions require a protocol conversion module to convert between Ethernet and a proprietary protocol running on the line.
Private operator Ethernet lines operate on the Ethernet protocol itself. Carrier Ethernet is available as Ethernet over copper for slow connections and Ethernet over fiber from 10Mbps to 10Gbps, others at 100Gbps.
There are more carriers competing for Ethernet service deals, which lowers the cost per Mbps. The cost per Mbps is almost always lower with Ethernet and scaling is much easier. You can install a Gigabit Ethernet port and request any bandwidth from 10Mbps to 1000Mbps. If you need to increase or decrease capacity, a simple call to the operator is all it takes, with no need to change equipment.
MPLS network
Private lines are a great solution when you want to connect to multiple locations in a small geographic area. As the number of locations increases, the cost increases exponentially with increasing distance from the central office. Each line has a load that varies with distance.
A popular alternative is MPLS, or Multi-Protocol Label Switching Network. It's a private network that uses a proprietary protocol called shortcut switching instead of the more common TCP/IP protocol. The fact that access is limited to subscribers and the uniqueness of the LS protocol provides a level of security even if you share the network with other users.
MPLS bearers ensure you don't see other traffic. Bandwidth, latency, jitter and packet loss are carefully managed to meet every customer's needs, with additional headroom to increase bandwidth as needed.
MPLS is also known as MPLS VPN or Virtual Private Network. Because it's not really private and only serves as a private line for you. If you feel you need an extra layer of security, you have the option to encrypt your data before it enters the MPLS network.
Why choose MPLS? This is a great opportunity to save money on long journeys where private connections are expensive. All you need is a small private network connection at each location and instructions from the operator on how to route your traffic.
Online VPN solution
The Internet is a wide area network solution with the greatest geographic connectivity. Performance can vary significantly. It's the most secure network you can find. Anyone can just sign up and do it.
How to make the Internet like a private line? They provide end-to-end encryption. Two popular approaches are software-based IPsec installed on every computer and SSL or Secure Sockets Layer already built into web browsers.
Choose a personal line solution
Which is the best ? It depends on how many slots you have, where they are located, how much traffic you want to send and what level of performance you need.
For each of the above solutions, there is a trade-off between cost and benefit. What's right for you? An expert consultant will review your private wired or VPN network needs and suggest one or more solutions that can meet your business needs.
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