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The TCP/IP capabilities of the Paradise Datacom Evolution series of satellite modems include the capability of auto sensing the cable type. It has been found that auto-sensing is not implemented in a standard way in all Ethernet devices and this can lead to modems and other devices failing to talk to each other correctly, which is why Paradise does not use this feature. The modem software supports two basic modes of Ethernet bridge operation. Firstly, there is a point-to-point mode for when one modem is transmitting to and receiving from one other modem. Secondly, there is a point-to-multipoint mode for when one modem is transmitting to several modems. It has performance enhancing proxy, i.e. TCP traffic in an evolution modem can be 'accelerated', thereby increasing the throughput rate that is achieved. Performance Enhancing Proxy (PEP) that splits the original TCP connection at the modem creates a new TCP connection across the satellite to the other modem and then again creates a new TCP connection between the modem and the end point. Paradise Datacom supports dynamic routing via the Quagga software package (version 0.98.6 or higher). The IPv4 features of Quagga are supported, including the RIP, OSPF and BGP routing protocols. When providing Quality of Service reports to satellite-services end users, it would be extremely useful to be able to easily include pertinent performance information from the modem. The modem supports this by incorporating the desired status information into emails that can be sent anywhere-either to someone on the local network, or worldwide if an Internet connection is available.
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