Load balancing is a powerful tool for engineering traffic across a network. This memo suggests ways of improving load balancing across MPLS networks using the concept of "entropy labels". It defines the concept, describes why entropy labels are useful, enumerates properties of entropy labels that allow maximal benefit, and shows how they can be signaled and used for various applications. This document updates RFCs 3031, 3107, 3209, and 5036. Status of This Memo This is an Internet Standards Track document. This document is a product of the Internet Engineering Task Force (IETF). It represents the consensus of the IETF community. It has received public review and has been approved for publication by the Internet Engineering Steering Group (IESG). Further information on Internet Standards is available in Section 2 of RFC 5741. Information about the current status of this document, any errata, and how to provide feedback on it may be obtained at http://www.rfc-editor.org/info/rfc6790.
This document describes a tunnel encapsulation for Ethernet over IPv6 with a mandatory 64-bit cookie for connecting Layer 2 (L2) Ethernet attachment circuits identified by IPv6 addresses. The encapsulation is based on the Layer 2 Tunneling Protocol Version 3 (L2TPv3) over IP and does not use the L2TPv3 control plane.
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