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Configuring a Switch for Dante

Audio-over-IP with Focusrite's Dante-based products is simple. For the majority of systems, setup will be extremely straightforward. The following guide details exactly what to do with your managed switch when setting up the network. Whether you're new to networking or a seasoned IT professional, the information below will be easy to implement.

What To Look For In A Switch

The Dante network requires the use of at least one Gigabit Ethernet switch. In larger installations multiple switches will be needed. For many networks an unmanaged switch will function without issue, however for the greatest flexibility – particularly as your network grows – we highly recommend the use of a managed switch.

Here are the requirements of any switch to be used with a Dante system:

• Gigabit rated (1000 Mbps)

• Non-blocking

• Quality of Service (QoS) with four queues

• Diffserv (DSCP) QoS with strict priority

• The ability to disable EEE (also called Green Ethernet)

Specific Switch Examples

Unlike other networked audio systems, Dante works with standard, off-the-shelf Ethernet hardware, which is commonly available and needn't be expensive. There are many switches available with varying features, number of ports and in various sizes. Although not an exhaustive list, below are some switches that Focusrite has found to be ideal for Dante:

• Cisco SG200-18

• Cisco SG200-26

• Cisco SG300-10

How To Set Up Your Switch

To set up the managed switch, the following DSCP values should be given the priority shown in the table. Please refer to the user guide of your managed switch for instructions on how to set DSCP packet priority values. This may be under a section called QoS or Quality of Service.

DSCP Value

Priority

Usage

CS7

High

Time critical PTP events

EF

Medium

Audio, PTP

CS1

Low

(reserved)

BestEffort

None

Other traffic

 

Example Switch Setup: Cisco SG200 Series

The simplest way to configure a switch is to access it from your web browser. Start your web browser, and enter the IP address of the switch. By default, the address of the switch is set to 192.168.1.254, and the username and password are both “cisco”.

You should set the IP address of the computer beforehand to 192.168.1.x (for example: 192.168.1.100) and set the subnet mask to 255.255.255.0.

 

For PC: 

Let's get into the network settings of the computer's IP address.

Control Panel > Network Adapters 

Gen_settings.JPG

Select properties

gen_2_settings.JPG

Go To "Internet protocol Version 4"

You should set the IP address of the computer beforehand to 192.168.1.x (for example: 192.168.1.100) and set the subnet mask to 255.255.255.0.

 gen_3_settings.JPG

Start your web browser, and enter the IP address of the switch. By default, the address of the switch is set to 192.168.1.254, and the username and password are both “cisco”.

For Mac:

Go to System Preferences > Network. 

On left side go to the Ethernet port and set the "Configure IPv4 to Manually

Screen_Shot_2018-04-27_at_2.22.45_PM.png

You should set the IP address of the computer beforehand to 192.168.1.x (for example: 192.168.1.100) and set the subnet mask to 255.255.255.0.

Screen_Shot_2018-04-27_at_2.25.06_PM.png

            

Start your web browser, and enter the IP address of the switch. By default, the address of the switch is set to 192.168.1.254, and the username and password are both “cisco”.

 

 

On the left hand side, click Quality of Service

On the following screen, ensure that QoS is enabled and that Trust Mode is set to DSCP

Next, click on DSCP to Queue. Note that this switch uses a scale of 1-4 where 4 is highest priority and 1 is lowest. Here, CS7 (Time critical PTP events) and EF (Audio, PTP) have incorrect priorities

Set the priorities properly by clicking on the drop down menu and selecting the corresponding numbers.

Next, click apply. There is one final step – click save at the top right of the screen and on the following page, ensure that Running Configuration and Startup Configuration are selected. After clicking OK, reboot the switch.

If you turn off the power without saving the switch settings, all the settings you changed will return to their previous values. Since we changed the IP address, let’s save the switch settings.

Administration > Management Interface > IPv4 Interface

When you change the settings, the word “Save” will blink at the top of the screen. Click “Save” to open the following page. Make sure that Source File Name is set to “Running configuration” and Destination File Name is set to “Startup configuration”, and click “Apply”.

save_setting_swith_setup_ERIC.JPG

Your switch is now ready to use Dante

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