DANTE configuration on ISR 921-4P router & SG250 switches

[ben.r.fr]

Hello,

I have two SG250 switches configured for DANTE features which are the QoS (map dscp-queue 46 to 4 & 56 to and EEE disable.
These two switches manage different vlans.
One vlan on each switch needs to communicate through the DANTE. They are connected by a trunk port on a ISR 921-4P router.

My question is on the ISR 900 series (921-4P) router :
- I don't find the path to desable EEE ?
- I don't find the path to enable the QoS recommanded by Audinate for DANTE on the switch part of the 921-4P ?

Is someone can help me to fix that please ?

In advance thank you for your answers
Ben

[ben.r.fr]

Hello,

here are the outputs of the int.
There are no significant crashes listed and the issue only affects macOS.
A Windows user doesn't have the problem and his device has no slowdowns.

Router 921-4

Switch DANTE

[Georg Pauwen]

Hello,

the output I was looking for is:

show interfaces x

'X' must be the layer 3 interface of your router. The output shows queue drops, input/output errors and a whole lot of other stuff.

Actually, can you post the entire running configuration of the router (sh run) ?

[ben.r.fr]

ok sorry and here is the sh run of the router :

- would you want the "sh run" of the DANTE switch ?

RZA#sh run

Building configuration...

Current configuration : 2763 bytes

!

version 15.8

service timestamps debug datetime msec

service timestamps log datetime msec

no service password-encryption

!

hostname RZA

!

boot-start-marker

boot-end-marker

!

!

enable password

!

no aaa new-model

!

!

!

!

!

!

!

!

ip dhcp excluded-address 192.168.21.1 192.168.21.15

ip dhcp excluded-address 192.168.22.1 192.168.22.15

ip dhcp excluded-address 192.168.23.1 192.168.23.22

ip dhcp excluded-address 192.168.20.1 192.168.20.39

!

ip dhcp pool vlan_

network 192.168.21.0 255.255.255.0

default-router 192.168.21.254

dns-server 8.8.8.8

!

ip dhcp pool vlan_

network 192.168.22.0 255.255.255.0

default-router 192.168.22.254

dns-server 8.8.8.8

!

ip dhcp pool vlan_

network 192.168.23.0 255.255.255.0

default-router 192.168.23.254

dns-server 8.8.8.8

!

ip dhcp pool vlan_audio

network 192.168.20.0 255.255.255.0

default-router 192.168.20.254

dns-server 8.8.8.8

!

!

!

ip domain name 

ip cef

no ipv6 cef

multilink bundle-name authenticated

!

!

!

license udi pid C921-4P sn PSZ25521HCQ

!

!

username password 0 

!

redundancy

!

!

!

!

!

!

interface GigabitEthernet0

description link to ODB

switchport trunk native vlan 199

switchport mode trunk

no ip address

!

interface GigabitEthernet1

description link to GZA

switchport trunk native vlan 199

switchport mode trunk

no ip address

!

interface GigabitEthernet2

no ip address

!

interface GigabitEthernet3

no ip address

!

interface GigabitEthernet4

ip address dhcp

ip nat outside

ip virtual-reassembly in

duplex auto

speed auto

!

interface GigabitEthernet5

no ip address

shutdown

duplex auto

speed auto

!

interface Vlan1

no ip address

!

interface Vlan2

no ip address

!

interface Vlan20

ip address 192.168.20.254 255.255.255.0

ip nat inside

ip virtual-reassembly in

!

interface Vlan21

ip address 192.168.21.254 255.255.255.0

ip nat inside

ip virtual-reassembly in

!

interface Vlan22

ip address 192.168.22.254 255.255.255.0

ip nat inside

ip virtual-reassembly in

!

interface Vlan23

ip address 192.168.23.254 255.255.255.0

ip nat inside

ip virtual-reassembly in

!

ip forward-protocol nd

no ip http server

no ip http secure-server

!

!

ip nat inside source list 21 interface GigabitEthernet4 overload

ip nat inside source list 22 interface GigabitEthernet4 overload

ip nat inside source list 23 interface GigabitEthernet4 overload

ip route 0.0.0.0 0.0.0.0 GigabitEthernet4 dhcp

ip ssh version 2

!         

!

!

access-list 21 permit 192.168.21.0 0.0.0.255

access-list 22 permit 192.168.22.0 0.0.0.255

access-list 23 permit 192.168.23.0 0.0.0.255

!

control-plane

!

!

line con 0

line vty 0 4

login local

transport input ssh

transport output ssh

!

scheduler allocate 20000 1000

!

end

[ben.r.fr]

sh int router

[ben.r.fr]

R

[ben.r.fr]

W

[Georg Pauwen · Accepted solution]

Hello,

there are no errors on the interface, so QoS will most likely not change anything. Since you say that only Mac clients are experiencing this, I think we'll have to look in that direction. Which OS are the clients running (Monterey I assume) ?

[ben.r.fr]

OK,
no, the Macs that have problems are under Mojave 10.14.6, one Imac and a Macbook pro

Before network integration, these Macs had no slowdowns.

The switches were configured with their QoS usages, the Dante controller was configured for the first time, and there were no issues for several days.

The problem arrived without any particular alert and the Dante controller was reconfigured at this time.

- I think this way but I don't understand why Mac devices now exhibit slowdowns with audio software like Reaper and Ableton Live and in general?

[ben.r.fr]

Hello,

it is indeed on the Mac configuration that there was a problem.
To fix this I had to set up a new network config without DNS assignment and that fixed all the latency issues on the devices.

- Could you say that it is because the Vlan is not allowed to leave the LAN that there are these kinds of problems?

- What about QoS, should I deploy a configuration on the 921-4P router or is it definitely useless, especially for DANTE communication between the two switches link by the router ?

Thank you very much for your tips

Benjamin