Hi to everyone,

 

I configured Network Manager to have a local-link connection (eth0-ll) as DHCP fallback (eth0-auto).

 

When I do the following:

 

1. Connect Orange Pi in a net without DHCP, obtaining a local link address
2. Unplug ethernet cable
3. Plug  another ethernet cable connected to a network with DHCP

 

If step 2 and step 3 are executed rapidly, the Orange Pi doesn't detect the network switching and eth0 keeps its local-link address.

When I perform such steps slowly, Orange Pi detect which ethernet cable is not plugged in and then everything works as expected.

 

How can I increase the refresh rate of the ethernet cable state?

 

eth0-auto.nmconnection

[connection]
id=eth0-auto
uuid=f3e05ca1-169d-43e7-9482-a1ed73cf6eb1
type=ethernet
autoconnect-priority=100
autoconnect-retries=2
interface-name=eth0
permissions=

[ethernet]
mac-address-blacklist=

[ipv4]
dhcp-timeout=10
dns-search=
method=auto

[ipv6]
addr-gen-mode=stable-privacy
dns-search=
method=disabled

[proxy]

 

eth0-ll.nmconnection

[connection]
id=eth0-ll
uuid=29cd8244-a477-41f8-be44-85c3c5c2bf57
type=ethernet
autoconnect-priority=50
interface-name=eth0
permissions=

[ethernet]
mac-address-blacklist=

[ipv4]
dns-search=
method=link-local

[ipv6]
addr-gen-mode=stable-privacy
dns-search=
method=disabled

[proxy]

 

Providing logs with 

armbianmonitor -u

 helps with troubleshooting and significantly raises chances that issue gets addressed.

This is the result after fast plug in/out: https://paste.armbian.com/hinehiresa
This is the result after slow plug in/out: https://paste.armbian.com/usejemecey