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Can Satellite Be Part of Your SD-WAN?
Author: John SheplerSoftware Defined Networks (SDN) or Software Defined Wide Area Networks (SD-WAN) are increasingly being implemented to provide enterprises with high bandwidth at lower cost. In some cases, SD-WAN is the only way to achieve adequate performance levels in rural and remote areas. You can think of these software-defined networks as a collection of different connection technologies, but they're much more than that: they're a smart approach to getting the most out of all available connections, including satellite.
Why do you need SD networks?Suppose you want to connect to the internet or to a cloud service provider. Traditionally, you do this by ordering a "last mile" connection from your office to the Internet, or a private point-to-point connection between two points, such as your office and your cloud provider.
It's great to have providers that can give you all the bandwidth you need at a price that won't stifle your business. The problem is that you often end up overpaying for premium bandwidth that isn't being used, or you're sticking to your budget and regretting the performance every day.
In fact, different tasks have different connectivity requirements. Telephone lines for call centers or general offices do not require a lot of bandwidth but are very susceptible to delay, jitter and packet loss. Backing up files to a remote data center or cloud storage is virtually free from latency, jitter, and packet loss characteristics, but requires a lot of bandwidth to complete in a reasonable amount of time.
This is where SDN/SD-WAN works wonders. The intelligent processor acts as a traffic manager for every packet entering the network. These voice packets are routed to a powerful but bandwidth constrained circuit such as T1 or ISDN PRI. File backups can be transmitted over broadband or lower priority than T1 or fiber. Business applications in the cloud require reliability and responsiveness. You will establish a very effective connection.
How SD Networks Optimize Costs
The computing power of the SDN controller takes into account the requirements of any type of data traffic. You said it. The processor constantly monitors the status of each connection you provide. In fact, it can be a combination of T1, DS3, cable broadband, 4G and 5G wireless, point-to-point microwave, Ethernet over copper, Ethernet over fiber, SONET, MPLS, DSL and satellite. bidirectional.
It is important that the driver always knows how the respective connection works. Cheap connections are not always efficient. It can now be DSL or cable channel. The low cost is usually due to shared rather than dedicated connections. Other users outside your organization can hog bandwidth and slow it down when congestion occurs.
The satellite can have excellent speed and low packet loss. The geostationary satellites currently in service suffer from significant delays which cannot be avoided. This can be a problem for voice and video calls, but doesn't matter much when transferring files or downloaded videos.
In general, wireless usage is limited because wireless network bandwidth is a scarce resource. SDN must take this into account when distributing connections to avoid slow speeds or overhead.
The thing is, in many cases, you don't have to buy the most expensive broadband solution. You cannot load this line with 100% of the desired traffic. SDN/SD-WAN can make the most of your expensive connections, but offload traffic that doesn't require as much performance to a cheaper connection. If one of your links goes down, you also get the benefits of automatic failover.
Availability when it matters
There are plenty of places in rural America where you can stand on the street and pay big bucks to buy a hookup and no one will take it away from you. This is where an SD network solution can really help. New high-bandwidth satellites provide high-speed, high-quality communications. To solve the latency issue, you can enable a dedicated T1-based SIP trunk for VoIP calls. Cellular broadband is also likely to be available in most areas. Combine that and you could very well have all the bandwidth you need with all the performance you need without having to pay a fortune for fiber...if anyone does.
Not satisfied with connection costs or availability? Now is the time to consider SDN/SD-WAN solutions that deliver the performance you need at an affordable price.
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