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General features
SoftWLC is a software Wi-Fi controller that consists of several modules performing various operations in order to provide complex solution for organization of centralized Wi-Fi networks with Portal and Enterprise authorization. According to project requirements, certain modules can be included into the system or excluded from it.
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- Control and monitoring of Eltex equipment that forms the basis of Wi-Fi solutions.
- Flexible administrative access policies distribution for various objects and features to be provisioned to SoftWLC users within a carrier's distributed hierarchy
- Hotspot service implementation with portal authorization that allows:
- Integration of advertising providers' resources into a portal
- Integration with payment systems
- Portal design branding according to a client's requirements
- Enterprise authorization
- Possibility of integration with the external Active Directory
- Providing end users with a WEB tool for service management, portal branding and user account creation.
- SSID sсheduling
SoftWLC main modules
- EMS-server is a SoftWLC central component that provides management and monitoring of other modules of the system, GUI for an operator to work with SoftWLC and NBI interface for integration to a carrier's OSS.
- WEB portal is a module based on tomcat6 WEB server and providing a set of WEB portals for user authorization in Hotspot networks and Portal Constructor for their customization. The list of the WEB portal's features includes integration with SMS gateways and auto generation of Wi-Fi user accounts in a database.
- B2B Admin Panel is a WEB resource that provides a user with convenient interface for new Wi-Fi users' accounts creation and basic service management operations like SSID name change.
- Database – SoftWLC single database built on Mysql. Contains all the information about the system: from equipment configuration to user activity statistics.
- RADIUS server based on freeRADIUS is a module responsible for AAA operations (Authentication, Authorization, Accounting).
- DHCP server is a module that issues addresses for access points and Wi-Fi users. The server is based on isc-dhcp server. An operator can optionally use custom DHCP servers.
- APB service is a service intended for centralized synchronization of users' status information between access points. It provides seamless roaming between Hotspot access points.
- Auth Service is a common module for user authentication and authorization. Based on the RADIUS server. The service is used for authentication and authorization in the systems: B2B Admin Panel and WEB portal.
- Notification Gateway provides centralized communication between platform components and external systems that allow sending SMS and Email. The module interacts with B2B Admin Panel and WEB portal.
- PCRF is used for SoftWLC and ESR-1000 interaction in BRAS mode, when ESR-1000 implements Internet access policies for Wi-Fi subscribers and redirects users to an authorization portal.
Typical applications
Minimal scheme
Minimal solution requires two servers: each server includes all the modules with Active-Active redundancy. SoftWLC servers are integrated to an operator's network. L3 connectivity is provided between the servers and access points. That is enough to use the product. Management interfaces are configured on each access point to provide interaction with SoftWLC within a special control VLAN. Client data goes from access points in clients' VLANs (one VLAN for each SSID) to carrier network and then to the Internet.
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The Management tunnel is used to transfer management traffic from/to an access point located in a separate management network. This subnet is invisible for a carrier's L3 segment due to GRE tunnel headers. Subscriber traffic is transffered within the Data tunnel. The traffic is terminated to ESR-1000 and then routed to a carrier network (to its NAT).
System requirements for the SoftWLC server
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