Larger Networks - Solid State Logic AWS 900+ SE Owner's Manual

Installation

Larger networks:

To ensure minimum latency the ipMIDI driver uses multicast UDP rather than TCP/IP. This means that:
• The network connection should be as short as possible and should only use routers that can support high
data transfer rates. Problems have been experienced with some domestic routers, particularly when used
with Pro Tools.
• Because ipMIDI uses multicast UDP packets, messages between one computer and AWS900+ SE will be
received by all other computers on the network, potentially causing problems in installations with more than
one AWS900+ SE. The UDP packets can be blocked by using a firewall router and connecting the main
network to the WAN connector. The firewall can then be configured to allow all traffic apart from UDP ports
21928 through 21947 which are used by ipMIDI and (optionally) port 50081 which is used by the AWS900+
SE Remote application. Note that it may be necessary to use a separate Ethernet switch in place of the
integrated firewall router switch, as some of these can not support the high data transfer rate required. The
NetGear FS108 (an eight port switch) has been used successfully. Most systems can be easily configured
with a direct connection between AWS900+ SE and the controlling computer.
AWS 900+ SE Owner's Manual
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