Hi All , I have a basic query regarding SCTP heartbeat re-transmission pattern . As per the RFC 4960 : Furthermore, when its peer is multi-homed, an endpoint SHOULD try to retransmit a chunk that timed out to an active destination transport address that is different from the last destination address to which the DATA chunk was sent. Also, When retransmitting data that timed out, if the endpoint is multi-homed, it should consider each source-destination address pair in its retransmission selection policy. When retransmitting timed-out data, the endpoint should attempt to pick the most divergent source-destination pair from the original source-destination pair to which the packet was transmitted. Suppose if we have multihomed SCTP endpoints A and B . A B a.a.a.p b.b.b.p a.a.a.s b.b.b.s If we transmit heartbeat from a.a.a.s to b.b.b.s and it is not acknowledged so does it re-transmit it using the same src and destination or with a.a.a.p to b.b.b.s. Please help to understand . Thanks =====-----=====-----===== Notice: The information contained in this e-mail message and/or attachments to it may contain confidential or privileged information. If you are not the intended recipient, any dissemination, use, review, distribution, printing or copying of the information contained in this e-mail message and/or attachments to it are strictly prohibited. If you have received this communication in error, please notify us by reply e-mail or telephone and immediately and permanently delete the message and any attachments. Thank you -- To unsubscribe from this list: send the line "unsubscribe linux-sctp" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html