1J Rajahalme, A Conta, B Carpenter. IPv6 Flow Label Specification[J]. Request for Comments. March 2004,RFC 3697.
2C Partridge. Using the Flow Label Field in IPv6[J]. Request for Comments: June 1995. RFC 1809.
3S Deering, R Hinden. Internet Protocol Version 6 (IPv6) Specific[J]. Request for Comments: December 1998. RFC 2460.
4K Nichols, S Blake, F Baker. Definition of the Differentiated Services Field (DS Field) in the IPv4 and IPv6 Headers[J]. Request for Comments:. December 1998.RFC 2474.