No mixing CIDs

quicwg · Jun 11, 2018 · 26c5b74 · 26c5b74
1 parent e772275
commit 26c5b74
Showing 1 changed file with 4 additions and 2 deletions.
diff --git a/draft-ietf-quic-transport.md b/draft-ietf-quic-transport.md
@@ -723,8 +723,10 @@ Senders SHOULD coalesce packets in order of increasing encryption levels
 include a length, so it will always be the last packet included in a UDP
 datagram.
 
-The sender MUST NOT coalesce QUIC packets belonging to different QUIC
-connections into a single UDP datagram.
+Senders MUST NOT coalesce QUIC packets with different Destination Connection
+IDs into a single UDP datagram. Receivers SHOULD ignore any subsequent packets
+with a different Destination Connection ID than the first packet in the
+datagram.
 
 Every QUIC packet that is coalesced into a single UDP datagram is separate and
 complete.  Though the values of some fields in the packet header might be