Reverse DDM

Dynamic device mapping is a technology for USB KVM switches which is sometimes implemented as an alternative to standard USB keyboard and mouse emulation. Reverse DDM (short for Dynamic Device Mapping), on the other hand, is a related technology that allows further flexibility in regard to specific USB ports.

Design

With DDM (Dynamic Device Mapping) Technology, the communication between shared peripherals and all connected systems are maintained 100% of the time, even as a user switches between the KVM ports. This makes generic device emulation unnecessary as the DDM allows each connected computer system to believe all connected I/O devices are remaining connected even as the KVM switch might move to another port.

With Reverse DDM, an administrator can provide port level management control. Individual USB ports can be limited, configured, or assigned to specific kinds of devices. This adds a level of security in certain environments that require no USB thumb drives to be used, or printers connected, etc.

gollark: Which I guess is still kind of wrong encoder settings.
gollark: Or you might be setting an excessively low bitrate.
gollark: Your encoder settings might be wrong in some way.
gollark: - https://trac.ffmpeg.org/wiki/Encode/AV1
gollark: > Note: AV1 encoding is very slow in comparison to VP9 or H.264, and considered experimental at this stage. Hence the use of -strict experimental (or the alias -strict -2) is necessary.

See also
  • Dynamic Device Mapping
  • KVM switch
  • Display data channel
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