How to disable reconnecting when interface is down?

Hi there, is there any setting I can disable network reconnection or set the reconnection interval?
I'm using a vpn service and get password from a soft token, so I don't want to keep trying when the service is temporarily down, which will cause the token to be blocked.

You can set parameter auto=0 for the interface.
That prevents automatic connection. But you will need to manually connect the interface each time. With ifup command or from Luci.

@hnyman But according to the description, "auto" only affects when the device boots up: "Specifies whether to bring up interface on boot". as my experience, it still reconnects when the service goes down.

Hmmm. You may be right. I thought that it would work also later, but likely that first requires ifdown to mark the interface disabled.