target = "https://www.rfc-editor.org/rfc/rfc9000#section-21.4"

# 21.4.  Optimistic ACK Attack
#
# An endpoint that acknowledges packets it has not received might cause
# a congestion controller to permit sending at rates beyond what the
# network supports.  An endpoint MAY skip packet numbers when sending
# packets to detect this behavior.  An endpoint can then immediately
# close the connection with a connection error of type
# PROTOCOL_VIOLATION; see Section 10.2.

[[spec]]
level = "MAY"
quote = '''
An endpoint MAY skip packet numbers when sending
packets to detect this behavior.
'''