AD-WAN Backbone Network Solution

Automated deployment

Driven by rapid growth of cloud computing, enterprises are increasingly digitizing their business. A notable feature of the cloud computing era is that users expect services to have the ability to rapidly go live end to end after moving to the cloud. Networks must adapt to and be aware of applications to quickly establish and flexibly deliver connectivity resources. The AD-WAN backbone network solution supports rapid service deployment and provides an automatic deployment function, mainly including the following content:

VPN deployment—Provides one-click automated VPN service deployment. You can deploy the service by simply specifying the deployment scope on the controller. This automates the configuration deployment to network devices, reducing manual configuration workload and operational risks.

QoS deployment—Provides end-to-end automatic deployment of QoS services, achieving traffic rate limiting and application assurance based on user services. The application-based end-to-end QoS assurance feature resolves the issue of inadequate assurance capability of device-level QoS in traditional networks, allowing for rapid and bulk deployment of service QoS configurations. When deploying QoS, you can either use a global template for one-click network-wide deployment or select a local template for a single link deployment, making the implementation more flexible.

Application policy deployment—Automatically deploys application SLA profiles (including bandwidth and link quality settings) and time range settings for the network elements to dynamically reroute applications upon live network state changes for SLA compliance.

Slice management—The AD-WAN backbone solution supports Flexible Ethernet (FlexE) and channelized subinterfaces for hard slicing. FlexE and subinterface channelization (also called subinterface slicing) create network slices independent of each other. They divide bandwidth by adding a shim between the physical and data link layers or at the data link layer and assigns part of bandwidth to each network slice for exclusive use. This enables the customers to provide more deterministic network services for diverse applications than on a traditional network.

Flexible assurance

The AD-WAN backbone network solution provides flexible service assurance capabilities, mainly including the following content:

Network scheduling based on factors such as bandwidth usage and link colors

When the bandwidth usage of a link reaches the set threshold, AD-WAN automatically deploys the corresponding TE policy to reroute traffic to another link that meets the bandwidth requirements, ensuring a satisfactory user experience.

Network scheduling based on network quality factors such as latency, jitter, and packet loss ratio

When the link quality reaches the set threshold, AD-WAN automatically deploys the corresponding TE policy to reroute traffic to another link that meets the quality requirements, ensuring a satisfactory user experience.

Time range-based network scheduling

Implements flexible network scheduling and assurance based on time policies to effectively utilize network bandwidth resources and ensure reliable business operation across different time periods.

UCMP multipath load

Support for the SRv6 policy feature enables multipath load sharing for service traffic. An administrator can assign weights to define the load sharing ratio, and AD-WAN can also automatically calculate weights based on remaining bandwidth resources on the paths.

Multidimensional policy combinations for self-defined application assurance

Combines different services into a system based on time ranges, bandwidth, and other policies to meet the requirements of various customer network scenarios. For applications like video conferencing that require high real-time performance, this feature implements a scheduling policy that incorporates latency, packet loss, and bandwidth usage to flexibly manage traffic and ensure an optimal application experience.

Network path orchestration and application network preview

You can statically select the precise path for each forwarding hop between network nodes based on actual requirements, execute strict routing, and enforce strict control. You can also specify optional or excluded nodes or links for the application to achieve loose routing. Before the scheduling policy is deployed, this feature calculates the path in advance to provide the administrator with a reference for the application network path. After acknowledgment, this scheduling policy is deployed to the network to ensure the accuracy of user intent deployment and reduce operational risks.

Network resource reconstruction and one-click application optimization

This feature offers two key network capabilities: optimization based on a single application path and network-wide optimization. It prevents network congestion and forwarding deadlocks in extreme conditions, enhancing overall resource usage and risk mitigation capabilities.

AIOps

Introduces the intelligent analysis module and combines telemetry techniques for quick state change detection and maintenance in seconds. Collects information across the entire network, including network device, traffic, quality, correlated events, and alarm information, to perform data drilling and mining. Presents the most critical value elements within the network to users, assisting them in IT decision-making and O&M. The AD-WAN backbone solution provides the following four key operations capabilities:

Network-wide service traffic visibility

Displays real-time service bandwidth, traffic information, and health status, and displays them directly to end-users, allowing users to constantly monitor the overall health of the service.

Global device resource monitoring

Displays multi-dimensional topology, allowing administrators to view network topology information from various perspectives for a comprehensive overview.

Network health assessment

Assesses network health based on device metrics, collects device operational status and service load conditions by using Telemetry technology, and evaluates the current network's operational state and health.

Assesses the health based on link state and collects information on link traffic load and optical power throughput by using Telemetry technology to establish a health baseline for evaluating network health.

Granular application visibility

Uses NetStream technology to collect and display network traffic, making service traffic visible at the session level.

Forwarding path visualization and historical path tracing: Supports visualization of service forwarding paths based on NetStream, and allows historical path tracing based on time.

Intelligent analytics, trend forecasting, and simulation

Uses Telemetry to collect performance data such as interfaces and links from devices. This allows active monitoring and prediction of network anomalies, and outputting forecast results. It helps users understand network trends and prevent potential failures.

Link traffic trend prediction: Allows you to drag the timeline to view the predicted link bandwidth usage. Uses the ARIMA and LSTM model methods to establish a traffic trend model that can accurately predict network traffic trends for the next 24 hours and 60 days. This assists administrators in establishing an intelligent traffic baseline and refining network resource management.

Transceiver module fault prediction: Trains on the changes in transceiver module parameters and uses a big data machine learning algorithm (logistic regression model) to predict future faults following a level-1 alarm, providing an early warning point for potential failures.

Traffic and fault simulation analysis: Synchronizes live network data to form a virtual "real" network. Uses this network for link and device failure simulation to timely optimize network resource allocation for users.

Backbone network

Network description:

Topology: Full or partial mesh topology with multiple service planes, which can back up one another.

Traffic patterns: Both vertical and horizontal traffic streams are present.
Traffic segregation: VPN and service classification techniques are typically used to isolate and prioritize services.

Key benefits

Optimized traffic engineering for optimal link use efficiency.

High network availability and service quality assurance for critical businesses.

Simplified network operations, maintenance, and management at lower costs.

Tree topology deployment

Typical network

Network description

Topology: Tree-shape multitier network with dual-node and dual-link redundancy. A node can be connected to the upper-tier network in a different domain.

Traffic patterns: Most of the traffic in the network is vertical traffic.
Traffic segregation: This scenario typically deploys IP subnets or VPNs to isolate services.

Key benefits

Automated device deployment and service provisioning, including VPN and QoS configuration.

Application-aware routing based on various criteria including time range, bandwidth, latency, jitter, and packet loss rate for high network availability and service quality assurance for critical applications.

AIOps and deep visibility into applications, network, traffic, paths for simplified network operations and management.