diff --git a/draft-ietf-quic-transport.md b/draft-ietf-quic-transport.md index 8d9b66b3ba..3a7c5d2a23 100644 --- a/draft-ietf-quic-transport.md +++ b/draft-ietf-quic-transport.md @@ -1353,7 +1353,9 @@ The size of the first packet sent by a client will determine whether a server sends a Version Negotiation packet. Clients that support multiple QUIC versions SHOULD pad the first UDP datagram they send to the largest of the minimum datagram sizes from all versions they support. This ensures that the server -responds if there is a mutually supported version. +responds if there is a mutually supported version. A server might not send a +Version Negotiation packet if the datagram it receives is smaller than the +minimum size specified in a different version; see {{initial-size}}. ## Sending Version Negotiation Packets {#send-vn}