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Networking
2
CHAPTER
OVERVIEW
The MOTU AVB Switch opens up a world of
possibilities for creating expanded, customized
audio network systems.
About AVB. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
MOTU's AVB implementation. . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Networking examples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
A quick guide to networking. . . . . . . . . . . . . . . . . . . . . . . . . . . .10
Setting up a MOTU AVB interface for networking . . . . . . .11
Support for standard Ethernet. . . . . . . . . . . . . . . . . . . . . . . . . .12
ABOUT AVB
Audio Video Bridging (AVB) is an extension of the
Ethernet standard developed by the IEEE (802.1
standards committee) specifically to add high-
performance audio and video networking.
AVB brings together the worlds of networking
technology and high-end audio. Here is a brief
summary of some of the immediate benefits of
AVB for you, as a MOTU AVB interface user:
An open industry standard - AVB has been
■
developed by the IEEE as an international
standard specification. It is not proprietary or
controlled by one company.
High channel counts - AVB provides hundreds
■
of network channels.
Extremely low latency - AVB guarantees low-
■
latency, real-time performance.
Guaranteed Quality of Service (QoS) - AVB's
■
Stream Reservation Protocol provides Guaranteed
Quality of Service for each and every audio
stream. If the network cannot continuously
maintain every bit of every sample in the audio
stream, it will not allow you to make the network
connection in the first place. AVB streams are
prioritized over other network traffic to ensure
high performance.
Network-wide clocking and sync - AVB
■
devices all clock together over your network for
better-than-sample-accurate phase lock across all
connected devices. Timing accuracy is down to
the nanosecond.
True plug-and-play operation - AVB has been
■
designed from the ground up to provide automatic
device discovery, enumeration, and connection
management. Just plug your MOTU AVB
interfaces into a standard AVB switch and go. If
you wish to make stream connections and have
the ability to select media clock, you must use the
web app, or some other AVB controller. You don't
need an IT professional to configure the network.
AVB is a self-managing network protocol.
Support for standard Ethernet - AVB
■
cooperates with standard Ethernet networks, for
connecting traditional Ethernet devices like
wireless routers, switches, or any other non-AVB-
aware device.
Support for existing network infrastructure -
■
Replace your existing switches with standard
AVB-compatible switches, and your CAT-5e or
CAT-6 wired infrastructure now supports AVB.
Long cable runs - A single AVB network
■
connection can run up to 100 meters with a
standard copper wire CAT-5e or CAT-6 cable.
Fiber-optic cable runs can be much longer. With
multiple switches, you can create a network that
covers very large distances, if necessary. You can
use up to six "hops" (switch-to-switch
connections).
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