Mimir is an operator satellite gateway for hybrid internet over satellite services and a key component of the Forsway Hub. The unique Mimir solution is fitted for providing smooth broadband access with high QoE to users in areas with an existing narrowband return channel. Mimir has been optimized for a wide selection of return channels. The most commonly used are GPRS, 3G, ADSL, and WiMAX.
Mimir acts as a robust gateway routing IP data from the internet to subscribers via satellite, centralizing the reception of IP data from subscribers coming via different typs of return channels. Mimir also provides PEP (Proxy Enhancing Performance) features (TCP acceleration over satellite) along with different levels of security and encryption to protect from network invasion and to grant access (PKI and MAC based) to broadband services only to subscribers. In addition, it offers features such as VNO, support for multiple EMS, HUB/terminal monitoring and FAP/Plans.
Features and Functionality
As a hybrid Internet over satellite service uses different transmission paths for the incoming and outgoing data it is important to in an efficient manner support reception of requests on one network interface, while outgoing transmission is done on another network interface.
The long distance to geostationary satellite has the effect that it takes approximately 240 ms for a signal to travel to the satellite and back to earth. The TCP/IP protocol is not designed for such a long latency and this will affect the possible maximum throughput. Protocol acceleration from a Performance Enhancing Proxy can greatly improve throughput.
On-Demand Satellite Bonding
Mimir can bond medium bandwidth return channels with the satellite service in an efficient way. When bandwidth usage is low all traffic will go over the return channel. When bandwidth demands increases to more than the return channel can provide, satellite is automatically activated and bonded with the return link to give the end-user the combined bandwidth of the satellite link and return channel. Latency sensitive protocols are always prioritized for the low-latency return channel.
The system supports different type of link aggregation, for example by combining the bandwidth of two mobile connections for improved uplink performance.
The Mimir server allows secure authentication at login time from the use of PKI certificates. The certificates are preinstalled in the Odin satellite modems from factory and removes the burden of username and password management. All communication between the Mimir server and terminal can be encrypted.
Mimir supports multi transponder environments with automatic load balancing between transponders, based on geographic properties of end users.
Mimir NMS includes a system for simple user provisioning, allowing the system administrator to configure and manage users, terminals, and different types of accounts and services. Third party provisioning and billing systems can be integrated through a provisioning API.
The Mimir server is preferably deployed at the uplink site. The Mimir server is most commonly preinstalled to simplify deployment. The Odin terminal can be factory configured for a specific operator.
Terminal Auto Configuration
All satellite parameters are automatically sent to the terminal when connecting. The end user only needs to configure the return channel.