target = "https://www.rfc-editor.org/rfc/rfc8899#section-6.2.2.4"

[[exception]]
quote = '''
ICMP validation MUST be performed for PTB messages as specified in
Appendix C of [RFC4960].
'''
reason = '''
This requirement only applies to SCTP.
'''

[[exception]]
quote = '''
When the
validation is completed, the PL_PTB_SIZE calculated from the PTB_SIZE
in the PTB message SHOULD be used with the DPLPMTUD providing that
the reported PL_PTB_SIZE is less than the current probe size.
'''
reason = '''
This requirement only applies to SCTP.
'''