From: Xin Long > Sent: 08 October 2019 12:25 > > This is a sockopt defined in section 7.3 of rfc7829: "Exposing > the Potentially Failed Path State", by which users can change > pf_expose per sock and asoc. If I read these patches correctly the default for this sockopt in 'enabled'. Doesn't this mean that old application binaries will receive notifications that they aren't expecting? I'd have thought that applications would be required to enable it. David - Registered Address Lakeside, Bramley Road, Mount Farm, Milton Keynes, MK1 1PT, UK Registration No: 1397386 (Wales)