GRE-in-UDP Encapsulation
RFC 8086, “GRE-in-UDP Encapsulation”, is a Proposed Standard document published in March 2017 by L. Yong, E. Crabbe, X. Xu, T. Herbert. The canonical text is published by the RFC Editor.
Abstract
This document specifies a method of encapsulating network protocol packets within GRE and UDP headers. This GRE-in-UDP encapsulation allows the UDP source port field to be used as an entropy field. This may be used for load-balancing of GRE traffic in transit networks using existing Equal-Cost Multipath (ECMP) mechanisms. There are two applicability scenarios for GRE-in-UDP with different requirements: (1) general Internet and (2) a traffic-managed controlled environment. The controlled environment has less restrictive requirements than the general Internet.
What “Proposed Standard” means
An entry-level standards-track specification: stable, peer-reviewed and a solid basis for implementation, though it may still evolve before becoming an Internet Standard.
The canonical text of RFC 8086 is hosted at rfc-editor.org. Available in TXT,HTML.
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