Multicast & Unicast Bundles - Yamaha ACU16-C Manual

1 CobraNet
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CobraNet—the Technical Stuff
ulticast & Unicast Bundles
CobraNet bundles can be either
one device to all devices on the network (one-to-many). Unicast bundles are transmitted from
one device to another (one-to-one). For routing around the network, bundles are assigned
numbers from 0 through 65,279.
Multicast bundles are numbered 1 through 255 and are transmitted regardless of whether any
devices are configured to receive them. It's recommended that no more than four multicast
bundles be used on a switched network, offering up to 32 channels. Unicast bundles should
be used if more channels are required. (More multicast bundles can be used in certain circum-
stances. See the following Web page for details.)
http://www.peakaudio.com/CobraNet/licensee/Bundle_Assignments.html
Since multicast bundles are dis-
tributed indiscriminately to all
devices on the network, they
wreak havoc on switched net-
works and it's recommended
that no more than four multi-
cast bundles be used on
switched networks.
Note that although multicast
bundles are received at the ports
of all devices on the network,
only devices that are configured
to receive them will actually
process them.
Unicast bundles are numbered
256 through 65,279 and are
transmitted only when another
device is configured to receive
them, allowing destination con-
trolled routing.
The conductor ensures that only
one device transmits data in
each bundle during any isochro-
nous cycle.
The ACU16-C and NHB32-C
support all multicast bundle
numbers and unicast bundle
numbers 256 through 16, 383.
Bundle numbers are assigned in
NetworkAmp Manager.
multicast or unicast. Multicast bundles are transmitted from
8 channels of 20-bit
AES/EBU digital audio
ACU16-C
NHB32-C
Multicast bundles
8 channels of 20-bit
AES/EBU digital audio
ACU16-C
NHB32-C
Set to receive
bundle #256
Unicast bundles
CobraNet, ACU16-C & NHB32-C Guide
NHB32-C
Bundle #1
Switch
ACU16-C
ACU16-C ACU16-C
NHB32-C
Bundle #256
Switch
ACU16-C
ACU16-C ACU16-C
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