Ensuring Connectivity In The Age Of SD-WAN

The Software Defined Wide Area Networks (SD-WAN) market is rapidly expanding, becoming the standard in enterprise deployments.  According to MarketsandMarkets1, the global SD-WAN market size is expected to grow from $1 billion in 2018 to $ 4 billion by 2023.

In just the past year alone, we’ve seen a considerable trend when it comes to choosing to deploy SD-WAN and for many reasons. Allowing traffic to be routed over the most cost-effective services, such as broadband, an SD-WAN network can manage multiple types of connections including LTE, broadband and multiprotocol label switching (MPLS) links. Services that require high quality, such as video or voice, or high security, with sensitive information, can still be routed over remaining MPLS lines, although many enterprises are freeing themselves of MPLS entirely, allowing them to invest in Smart Out-of-Band with the savings. Because of this flexibility, SD-WANs can dramatically lessen the cost and minimise the complexity of traditional WANs. However, despite it’s gaining popularity, with deployments in data centers and at the edge, it still needs an alternative path of access to the network in the event of an outage.

SD-WAN Points Of Failure

In traditional branch networking, branch routers can go for years without needing any intervention like configuration changes or firmware updates. But SD-WAN routers are more sophisticated and run a larger software stack. Firmware updates are common which means that there are many more opportunities for things to go wrong. Updates can leave organizations vulnerable to potential downtime; and visibility blind spots can decrease the effectiveness of deployments, creating security challenges.

SD-WAN also needs additional security offerings to protect an enterprise. The primary SD-WAN connection must be secure and must be added to any other security solution being deployed. These devices are usually fully meshed which means that compromising one device can give attackers visibility into the traffic flow from across the enterprise.

The Smart Solution

Smart out-of-band management by Opengear allows enterprises to bypass these common limitations. Not only does it provide an alternative path to devices located at remote sites when the primary network is down, helping mitigate the risk that SD-WAN can bring, it can also help facilitate access to edge infrastructure to ensure business continuity.

Attaching Opengear to SD-WAN deployments:

Diagnoses the issue: If a disruption occurs and the internet link isn’t connected, outages are detected immediately. Paired with Lighthouse Centralized Management, administrators are able to identify issues and remediate them remotely without having to roll a truck out to a site.

Allows for always-on access: Failover to Cellular paired with Smart Out-of-Band ensures uninterrupted availability for remote networks with 4G LTE. This allows organizations to continue business as usual while the primary internet connection is down.

Decrease costs: A Smart Out-of-Band solution costs less to deploy and operate. A truck roll and a few hours offline can cost an organization thousands of dollars.

Designed to provide the needed resilience at the edge, Smart Out-of-Band by Opengear is scalable, providing the ability to manage infrastructure at distributed sites. Troubleshooting and remediation at the network’s edge enables organizations to detect faults before they become failures which minimizes downtime and operating costs.

Providing organizations with always-on connectivity and increased resilience in the event of an SD-WAN network failure, Smart Out-of-Band is able to ensure that infrastructure is accessible from anywhere during an outage. This resilient backup connectivity allows enterprises to reduce the time-consuming nature of dispatching engineers to data centre sites to make configuration changes and trouble-shoot issues for business continuity. Smart Out-of-Band and Failover to Cellular™ ensures that SD-WAN continues to operate when all other circuits are unavailable, providing the always-on access needed at the edge. So the next time you’re deploying SD-WAN, remember to attach Smart Out-of-Band.

 

1 https://www.marketsandmarkets.com/Market-Reports/software-defined-wan-market-53110642.html

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