Judul : Will SD-WAN Eat MPLS?
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Will SD-WAN Eat MPLS?
by John SheplerSD-WAN has recently become a popular service. It is often presented as an alternative or substitute for MPLS networks. A simple cost comparison provides a compelling argument that SD-WAN can do on MPLS what MPLS can do on Frame Relay. It's really like this? We will see.
The problem is the network, especially the computer network. Most of us need a computer for our work. It can be a traditional desktop computer, a laptop in a hotel room or conference center, or a tablet or mobile phone on the go. It can also be a point of sale terminal, an industrial process control, a 3D printer or just a laser printer in the office. These must all be linked or networked, otherwise they will not work.
In fact, it's even worse. Remember when you bought the software in a box? Not many programs sell this way anymore. Now it's about apps and they are delivered and updated virtually. The high-performance app isn't even on your device. It resides on the remote data site or the provider's platform. Without signing in, you can't even launch the app.
Personal lines: the old gold standard
If you want complete control over all aspects of your network, create your own network for exclusive use. Most companies do this internally. There was a problem exiting the building. You need to deliver your packages to a service provider or carrier to take them to another location.
The closest thing to DIY wiring is ordering custom point-to-point circuits. T1, DS3 and OCx SONET are traditional PTP schemes. More modern alternatives are Ethernet over copper and Ethernet over fiber. All of these are still extremely popular with high performance, high security and high reliability. Cost and maintenance time are really the only issues.
MPLS networks are saving money and spreading around the world
With MPLS networks you can get closer to the quality and security of point-to-point private circuits. MPLS, or Multi-Protocol Label Switching, replaces the old Frame Relay networks that were popular when high speeds were 64 Kbps. It is a private WAN that manages multiple clients simultaneously without knowing each other. Since the core network is shared, the cost is lower than using private lines to each satellite office you want to connect to. Also, they are already installed, so you only need to provide one line of input for each location.
MPLS networks are popular for connecting companies with multiple commercial locations in the United States or around the world. However, they offer high performance, high safety and high reliability. Again, the price can be an issue.
Why not the Internet?
The fascination of the Internet is strong. It is the most profitable of all methods for reaching anyone anywhere in the world. However, there are problems.
Security is taken care of. Just read the headlines every day and you will feel insecure when you are online. Encryption, especially IPsec and SSL, makes the risk for e-commerce and banking manageable. However, performance is variable and out of your control. Latency, jitter, and packet loss are not only variable, they are also unpredictable. Businesses with high-performance mission-critical applications cringe at the thought of entrusting their livelihoods to the public Internet. However, compared to other solutions, the cost is really interesting.
Compromise of the hybrid network
The fact is, most businesses require a high-speed Internet connection to communicate with their suppliers and customers, and to access the near-limitless news and information available online. A popular trade-off is to use an MPLS network for internal communications and the Internet for external communications in a hybrid network configuration.
Another use of the internet is as a backup if your private network goes down. A lot happens with line breaks that have a name: bulldozer turned off. All that bandwidth is often wasted when the broadband connection is down.
SD-WAN makes the Internet compatible
Software Defined Networking (SDN) was invented to reduce the time and effort required to manage complex networks. It "virtualizes" the network, so you don't have to deal with all the complexities of multiple routers, switches, and various devices spread across a physical network.
SD-WAN or Software Defined Wide Area Network does the same thing for open networks to connect remote locations. SD-WAN manages multiple connections according to the rules configured from the control panel. Once up and running, it automatically routes traffic and prevents problems without your intervention.
For example, SD-WAN can use cable broadband, DSL, T1 lines, MPLS networks, WiFi LTE, satellite connections, and more. Monitors the characteristics of each path in the direction of loading and unloading for bandwidth, packet loss, jitter and latency. Decides which path to use for each package based on the current properties of the available paths. These can change anywhere and can change in milliseconds. You can't monitor all of this manually, but an SD-WAN system can stay on top.
With SD-WAN, you don't have to waste the perfect bandwidth of your backup connection while your primary connection is running. SD-WAN will consolidate bandwidth and ensure that the most critical applications, such as VoIP and UC voice and video, run on the best available paths and that less critical file transfers use less critical paths.
Businesses are finding that even two different broadband Internet connections can provide excellent performance on a single broadband service, as long as they are managed by SD-WAN. Two broadband services can easily cost a fraction of the same private line for the same or less bandwidth. The core of the internet generally works quite well. WLAN and access connections, such as cable or DSL, are often disconnected. Using SD-WAN to observe and choose the best path at a given time can significantly improve the performance of a "virtualized" WAN.
Is SD-WAN Right for Your Business? You would at least miss a closer look at which connections are available at which prices for your specific trading venues . Remember, you don't have to be 100% online. SD-WAN will also manage private lines, MPLS networks, satellite and wireless connections.
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