Hello, I'm working to create a VPN application using multipath QUIC and have a question about the detection of any path failure. My understanding is that the losses of packets cannot be used as the signal of the path failure because any later packet will not be acknowledged, and those losses will not be detected. So, we have to use some other measure such as treating many PTOs as the signal of the path failure. For example, see https://github.com/cloudflare/quiche/pull/1310#issuecomment-1459665040. Is this understanding correct?
If so, I suppose some explanation should be described in the multipath draft. Regards, MK
