Assuming timers set like in the Linux implementation or as suggested in RFC4960:
When does an idle SCTP association timeout, when the peer disappears?
a) let’s assume HEARTBEAT is switched off for all destination addresses.
I guess it never does, because nothing is sent, so nothing gets lost.
b) with normal HEARTBEATs, both peers single homed.
- Association.Max.Retrans is 10 times
- RTO.Max is 60 seconds
After HEARTBEAT kicks in (when?) the upper limit is something related to 10×60s (=10 minutes). Who knows the details?
c) is it different if one or both sides are multihomed? Or if the association has a lot of data to send?
I’m not sure if the multihoming case is different at all (timeouts faster or slower?). – And if data is to be sent: I guess the timeout is still the same minus average time for the HEARTBEAT to kick in.
