%% You should probably cite draft-ietf-ipsecme-ikev2-sa-ts-payloads-opt instead of this I-D.
@techreport{kampati-ipsecme-ikev2-sa-ts-payloads-opt-07,
    number =    {draft-kampati-ipsecme-ikev2-sa-ts-payloads-opt-07},
    type =      {Internet-Draft},
    institution =   {Internet Engineering Task Force},
    publisher = {Internet Engineering Task Force},
    note =      {Work in Progress},
    url =       {https://datatracker.ietf.org/doc/draft-kampati-ipsecme-ikev2-sa-ts-payloads-opt/07/},
    author =    {Sandeep Kampati and Wei Pan and Paul Wouters and Bharath Meduri and Meiling Chen},
    title =     {{IKEv2 Optional SA\&TS Payloads in Child Exchange}},
    pagetotal = 8,
    year =      2021,
    month =     jul,
    day =       26,
    abstract =  {This document describes a method for reducing the size of the Internet Key Exchange version 2 (IKEv2) CREATE\_CHILD\_SA exchanges used for rekeying of the IKE or Child SA by replacing the SA and TS payloads with a Notify Message payload. Reducing size and complexity of IKEv2 exchanges is especially useful for low power consumption battery powered devices.},
}