Juniper Mist WAN Assurance is a key component of the Juniper AI-driven SD-WAN solution. WAN Assurance uses AI for IT operations (AIOps) to enable IT teams to deliver superior user experiences across an entire distributed enterprise. WAN Assurance achieves this by continually measuring service levels at the WAN edge.
Juniper WAN Assurance greatly improves the end user and operator experience for enterprise WAN networks. This is accomplished with the Juniper Mist AI engine that analyzes rich streaming telemetry from Juniper Session Smart Routers and Juniper SRX Series Firewalls to provide real-time insights into individual user experiences. Juniper WAN Assurance provides application health, WAN link health, and gateway health and utilization metrics, along with root cause discovery and anomaly detection.
Marvis Virtual Network Assistant further simplifies troubleshooting with Natural Language Processing (NLP), a conversational assistant, prescriptive actions, and self-driving actions that automatically remediate issues.
The industry’s first AI-Native networking digital experience twins now cover the full stack—wired, wireless, and SD-WAN domains. Marvis Minis perform automated speed tests to give enterprises the ability to see if they are getting the full bandwidth they have purchased, even when there are no users present. Operators can be alerted to upstream network issues and work on resolving them before the end users show up to the office.
Dynamic Packet Capture (dPCAP) has been added to the WAN. No longer will operators need to recreate issues on their network to capture the right packets. Now Marvis will notice when an issue is occurring and automatically capture the appropriate packets for them. This will drastically shorten the MTTR and allow operators to easily search for any needle-in-a-haystack issues.
WAN Assurance improves user experiences beyond what’s possible with any other enterprise cloud service. It’s the only cloud service that uses Service Level Experiences (SLEs) to measure and dynamically improve end user application experiences. WAN Assurance also works in conjunction with Juniper Mist Wired Assurance and Juniper Mist Wi-Fi Assurance to isolate network issues for distributed enterprises.
Since system problems can actually be caused in one domain (such as the WAN) and felt in another (such as a LAN), WAN Assurance is part of a complete client-to-cloud service ensuring optimal experiences across the enterprise.
Going well beyond the concept of client health (that is, whether a device is functioning or not), SLEs measure actual user experiences in real time based on continuously delivered (and actionable) telemetry. SLEs are maintained using applied data science and machine learning to understand the actual end user experience on the network.
SLEs identify root causes of suboptimal application performance experiences in just a few clicks and proactively isolate needle-in-a-haystack problems that may occur anywhere in the WAN.
The SLEs in WAN Assurance are:
- WAN edge health: Percentage of time clients are affected by WAN edges (routers) not passing traffic efficiently
- WAN link health: Percentage of time clients are affected by suboptimal WAN link performance
- Application health: Percentage of time when monitored applications are not performing well
- Gateway bandwidth: Percentage of time where WAN links are operating within available bandwidth rates and when not hitting congestion thresholds
- Overall service: Derived from the above
These SLEs include classifiers that are continually updated based on analytics and that help quickly isolate and repair network problems. For example, classifiers for WAN link health could be a physical cabling problem or could be related to ISP reachability.
Other domains (wired and wireless) have their own SLEs and classifiers. For example, a wireless SLE is Successful Connections, with classifiers including authorization or Dynamic Host Configuration Protocol (DHCP) issues, among others.
Yes. When used in conjunction with Juniper Mist Wired Assurance and Mist Wireless Assurance, WAN Assurance transforms and unites all operations across network switches, IoT devices, access points, servers, printers, and other equipment.
The benefits of this cross-domain visibility and control can be seen in the resolution of complex issues, such as:
- A discovery that a problem with successful connections to an access point was caused by a configuration change in a WAN router (an MTU mismatch) that caused certificates to fail
- A generic case of the internet being slow turns out to be a disruption in a cloud security service
- A slow messaging application could be affected by latency on the application server, an LTE signal issue in the WAN, or even an issue in the LAN (wired or wireless)
Key benefits of WAN Assurance are:
- Reduce troubleshooting time: WAN Assurance identifies root causes of service problem
- AI-driven application insights: Intelligence to assess the impact of network latency, jitter, packet loss, and other network metrics on end user experiences by application
- Gateway anomaly detection: WAN Assurance detects WAN gateway anomalies to identify and resolve application issues before they impact users
- Conversational interface: Marvis uses Natural Language Processing (NLP) to quickly obtain answers to networking issues by obtaining troubleshooting information in a question-and-answer format
- Cloud-based onboarding: ZTP simplifies site deployments while configuration templates enable rapid-scale implementation of an entire distributed SD-WAN
- Dynamic packet capture: No longer will operators need to recreate issues on their network to capture the right packets because Marvis will notice when an issue is occurring and automatically capture the appropriate packets for them
Distributed enterprises and service providers can benefit from WAN Assurance by simplifying operations, reducing MTTR, and improving end user experiences.
Distributed small and medium-sized businesses, enterprises, telecommunications providers, and managed service providers use WAN Assurance to simplify WAN management. Here are a few success stories of customers using WAN Assurance:
Volkerwessels
Deutsche Telekom
AmeriTrust
Seagate