Flow-Aware Transport of Pseudowires over an MPLS Packet Switched Network
RFC 6391, “Flow-Aware Transport of Pseudowires over an MPLS Packet Switched Network”, is a Proposed Standard document published in November 2011 by S. Bryant, C. Filsfils, U. Drafz, V. Kompella, J. Regan, S. Amante. It has since been updated by RFC 7274. The canonical text is published by the RFC Editor.
Abstract
Where the payload of a pseudowire comprises a number of distinct flows, it can be desirable to carry those flows over the Equal Cost Multiple Paths (ECMPs) that exist in the packet switched network. Most forwarding engines are able to generate a hash of the MPLS label stack and use this mechanism to balance MPLS flows over ECMPs.
This document describes a method of identifying the flows, or flow groups, within pseudowires such that Label Switching Routers can balance flows at a finer granularity than individual pseudowires. The mechanism uses an additional label in the MPLS label stack. [STANDARDS-TRACK]
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 6391 is hosted at rfc-editor.org. Available in TXT,HTML.
- RFC 6390 Guidelines for Considering New Performance Metric Development
- RFC 6392 A Survey of In-Network Storage Systems
- RFC 6389 MPLS Upstream Label Assignment for LDP
- RFC 6393 Moving RFC 4693 to Historic
- RFC 6388 Label Distribution Protocol Extensions for Point-to-Multipoint and Multipoint-to-Multipoint Label Switched Paths
- RFC 6394 Use Cases and Requirements for DNS-Based Authentication of Named Entities
- RFC 6387 GMPLS Asymmetric Bandwidth Bidirectional Label Switched Paths
- RFC 6395 An Interface Identifier Hello Option for PIM