Wide area networks (WANs) are complex clouds that carry a range of critical and non-critical business traffic, making WAN troubleshooting more important than ever.
Most WANs leverage service providers and involve multiple underlying transport types. In recent years there has been an increased reliance on dedicated internet access (DIA) circuits to build and supplement WANs at a lower cost. In some cases, WANs are built wholly as an overlay or VPN on these internet circuits. Rather than using private connections, traffic then shares a path with a local internet breakout.
When things go wrong, there are multiple approaches to achieve service restoration.
Monitoring and observing a WAN (including its component parts) is crucial to ensure the confidentiality, integrity, and availability of the business traffic it serves. Most WANs rely either directly or indirectly on dynamic routing protocols. These protocols account for failures in underlying elements and subsequent reachability across paths.
Although failures are not inevitable, they are still highly probable due to everything from device issues, congestion, and cable breaks, to human error.
With the rise of automation and continued abstraction levels, we sometimes encounter leaks that involve logic or routes that can undermine our ability to assure services. This guide provides some practical steps and approaches to help you with WAN troubleshooting. Download to learn more.
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