…r, as in IP in GRE in IP [ RFC2784 ][RFC7588][ RFC7676 ], or inside UDP in IP [ RFC8086 ] o MPLS - a shim layer for tunneling IP over a circuit-like path over a link layer [ RFC3031 ] or inside UDP in IP [ RFC7510 ], in which identifiers are rewritten on each hop, often used for …

… a flow SHOULD NOT change more than once in every thirty seconds (e.g., as in [ RFC8086 ]). The use of the source port field for entropy has several side effects that need to be considered, including: o It can increase the probability of misdelivery of corrupted packets, which in…