Networking; 1.Ip Addressing; 1.1. Ip Addressing Troubleshooting; 2.Dante™ Networking - Powersoft audio Ottocanali Serie Guía Rápida

Networking

ottocanali dSp+d amplifiers support linear daisy-chain,
star and loop network topologies; in a daisy-chained net-
work the pc with armonía pro audio Suite must always be
at one end of the chain.
Be aware that daisy-chaining does not guarantee reli-
ability in production environment, since any fault may yield
to network sectioning and lost of system control.
When efficiency and reliability are paramount, a redun-
dant network topology is advisable. in order to exploit the
dante features, star and open daisy-chain network topology
are allowed.

8 : 1.IP addressing

Factory default network settings are dHcp/autoip,
in order for the amplifier platform to self-configure when
connected to an existing LaN or pc. Fixed ip policy can
also be adopted and configured through armonía pro audio
Suite.
if a dHcp server is not active within the network, the am-
plifier platform initiates a stateless address auto-configuration
(i.e. Zero-configuration networking methodology – Zeroconf):
it self assigns a local numeric network address (of the
type 169.254.x.y – 172.31.*.* for the secondary network
if present – with a subnet mask 255.255.0.0) and automati-
cally distributes and resolves the hostnames of networked
devices. For setting a static ip address please refer to the
armonía pro audio Suite user guide.

8 : 1.1. IP Addressing troubleshooting

When connecting the ottocanali dSp+d to a network
environment it may happen that armonía pro audio Suite
does not discover or import the amplifier.
usually this is a problem of ip addressing: both armonia
and the ottocanali dSp+d must belong to the same subnet.
if a dHcp server is present on the network and a ottocanali
dSp+d amplifier is in auTo ip, networking may become
unstable.
As a rule of thumb, turn the DHCP server
on before connecting the amplifiers.
ip addressing of an ottocanali dSp+d amplifier is es-
tablished during the bootstrap: when the ottocanali dSp+d
amplifier discovers a dHcp server on the network during
the startup, it negotiates the networking parameters. if the
ottocanali dSp+d does not reveal a dHcp server on the
network during the startup it set itself in auTo ip mode.
8 : 2.Dante™ networking
The dante equiped models of ottocanali dSp+d ampli-
fier support dante redundant networking via the two rj45
ports on the rear panel:
f primary/eTH1 is the primary network port; f
f Secondary/eTH2 is the Secondary network port. f
dante connectivity is always supported on the primary/
eTH1 Gigabit ethernet port; the Secondary/eTH2 Gigabit
ethernet port offers continuity of operation when a parallel
redundant network is established.
in order to implement a dante network, a computer run-
ning dante controller have to be used. dante controller is a
software application that manages devices on the network.
ottocanali dSp+d amplifiers are automatically discovered
and displayed in dante controller with the default identifier
MODELNAME-SERIAL (e.g. 8k4-71520).
dante networks will almost always require at least one
network switch. redundant infrastructures may require mul-
tiple switches. For maximum reliability, network switch shall:
f be rated for Gigabit ethernet; f
f be Non-blocking;
f
f have quality of Service (qoS) with at least four queues; f
f have diffserv (dScp) qoS with strict priority; f
f have eee (energy efficient ethernet) switched off. f
For detailed information on setting up a switch, please
refer to the manufacturer's documentation.

8 : 2.1. Redundant network configuration

dante redundancy can be set up and used between any
supporting dante-enabled audio equipment: it works by us-
ing two completely independent and separate networks, the
primary Network and the Secondary Network.
To setup and use dante redundancy, connect the
ottocanali dSp+d amplifier and other redundant dante-
enabled audio equipment using duplicate Gigabit switches
and ethernet cables. connect your computer running dante
Virtual Soundcard and dante controller, and other non-
redundant dante-enabled audio equipment to the primary
Network.
The primary and secondary networks MuST NoT be
inter-connected at any point. Make sure any computer is
set to automatically configure its ip address.
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