Note VN exception

quicwg · Jan 12, 2021 · 414eb36 · 414eb36
1 parent 0f6190f
commit 414eb36
Showing 1 changed file with 3 additions and 2 deletions.
diff --git a/draft-ietf-quic-transport.md b/draft-ietf-quic-transport.md
@@ -4503,8 +4503,9 @@ Header Form:
 
 Fixed Bit:
 
-: The next bit (0x40) of byte 0 is set to 1.  Packets containing a zero value
-  for this bit are not valid packets in this version and MUST be discarded.
+: The next bit (0x40) of byte 0 is set to 1, unless the packet is a Version
+  Negotiation packet.  Packets containing a zero value for this bit are not
+  valid packets in this version and MUST be discarded.
 
 Long Packet Type: