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6.0 Working
6.1 Architecture
VERSA-4K uses Client-Server architecture, where each function such as Video, Audio,
USB, IR, and RS-232 is considered as a service. VERSA-4K-S (Sender) acts as a server,
and provides services independently under one
Group
ID. Each VERSA-4K-R
(Receiver) in the network acts a client and receives a service by joining in the group
using
Group
ID.
A Receiver should have the same Group ID as sender to receive a service. Among all
the services only USB 2.0 is mutually exclusive, means, only one receiver in a group
can exclusively connect to the sender and exports all the USB2.0 attached to it. See
USB over IP
for more Details.
Unicast Mode vs. Multicast Mode
Unicast is used in One-to-One Applications, where only one receiver is allowed in a
group. Unicast offers simple and secure ways to extend Video and USB applications
to only one receiver.
Unlike Unicast Mode, Multicast mode is used in One-to-Many Applications, where
multiple receivers are allowed in a group and request services from a sender.
Multicast gives true flexibility to scale the system. Also, enabling
Independent
Routing
on the receiver allows choose and various services from multiples Sender in
different groups.
Fig 9: Unicast and Multicast Mode
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