Agile Controller-WAN
The core component of the SDN WAN solution is the Agile Controller-WAN. In WAN (IP core), Data Center Interconnect (DCI), and CloudVPN scenarios, the Agile Controller-WAN implements rapid deployment of VPN services and intra-AS traffic control. It helps simplify networks and lower network O&M costs.
- Service on demand: This feature allows for application-based, on-demand, and automated deployment of network services. It shortens the time-to-market (TTM) of services, improves service deployment efficiency, and facilitates service innovation. It also supports automated and on-demand tunnel establishment, meeting the requirements for bandwidth on demand (BOD), bandwidth calendar, and so on.
- Traffic optimization: This feature supports Border Gateway Protocol Link State (BGP-LS)-based topology information collection and path computation. It enables you to control traffic based on user-defined policies and real-time traffic information. With this feature, you can guarantee the service level agreement (SLA) for high-priority traffic, improve bandwidth utilization, and lower your network expansion costs.
- Carrier-grade reliability: The Agile Controller-WAN supports both clustering and remote disaster recovery to achieve carrier-grade reliability.
- Visualization: The Agile Controller-WAN provides easy-to-navigate graphical user interfaces (GUIs) to improve usability and facilitate fault locating. Through these GUIs, you can centrally configure NEs. You can also obtain a global view of networks, service paths, and service states for convenient monitoring, management, and planning.
- Openness for innovation: The Agile Controller-WAN exposes network capabilities through standard RESTCONF northbound interfaces and supports standard ONOS northbound interfaces to provide compatibility with native ONOS applications. This helps accelerate network innovation and increase operational efficiency.
| E2E Automated Service Provisioning and Visualization | The Agile Controller-WAN supports the on-demand, automated deployment of network services based on applications.
In a WAN scenario, the Agile Controller-WAN supports the following features:
In a DCI scenario, the Agile Controller-WAN supports the following features:
In a CloudVPN scenario, the Agile Controller-WAN supports the following features:
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| PCE-based Traffic Control | Traditional Multiprotocol Label Switching (MPLS) networks have three main problems: Planning and deployment are complex, bandwidth utilization is difficult to optimize, and network maintenance is complicated. With these problems in mind, Huawei has released the innovative path computation element+ (PCE+) technology. This technology uses the PCE server to centralize the management and route computation of MPLS Traffic Engineering (TE) networks. It optimizes network bandwidth resource utilization while providing differentiated management for services, ensuring that the requirements of high-priority services are met first. |
| Tunnel Management | Tunnel management mainly serves upper-layer services, managing the tunnels those services require. This includes tunnel registration for service modules, releasing tunnels, service interfaces for deleting or querying tunnels, tunnel storage, and service iteration to tunnels. You can use the web UI to query, create, modify, and delete tunnels. |
| Topology Management | Network topology collection is necessary for the Agile Controller-WAN to provide centralized control and computation as well as the basis on which it manages resources and tunnels.
The Agile Controller-WAN collects physical and logical network topology information and displays network-wide topology:
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