[tsvwg] RFC 8622 on A Lower-Effort Per-Hop Behavior (LE PHB) for Differentiated Services
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Subject: [tsvwg] RFC 8622 on A Lower-Effort Per-Hop Behavior (LE PHB) for Differentiated Services
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A new Request for Comments is now available in online RFC libraries. RFC 8622 Title: A Lower-Effort Per-Hop Behavior (LE PHB) for Differentiated Services Author: R. Bless Status: Standards Track Stream: IETF Date: June 2019 Mailbox: roland.bless@kit.edu Pages: 18 Characters: 43548 Obsoletes: RFC 3662 Updates: RFC 4594, RFC 8325 I-D Tag: draft-ietf-tsvwg-le-phb-10.txt URL: https://www.rfc-editor.org/info/rfc8622 DOI: 10.17487/RFC8622 This document specifies properties and characteristics of a Lower- Effort Per-Hop Behavior (LE PHB). The primary objective of this LE PHB is to protect Best-Effort (BE) traffic (packets forwarded with the default PHB) from LE traffic in congestion situations, i.e., when resources become scarce, BE traffic has precedence over LE traffic and may preempt it. Alternatively, packets forwarded by the LE PHB can be associated with a scavenger service class, i.e., they scavenge otherwise-unused resources only. There are numerous uses for this PHB, e.g., for background traffic of low precedence, such as bulk data transfers with low priority in time, non-time-critical backups, larger software updates, web search engines while gathering information from web servers and so on. This document recommends a standard Differentiated Services Code Point (DSCP) value for the LE PHB. This specification obsoletes RFC 3662 and updates the DSCP recommended in RFCs 4594 and 8325 to use the DSCP assigned in this specification. This document is a product of the Transport Area Working Group Working Group of the IETF. This is now a Proposed Standard. STANDARDS TRACK: This document specifies an Internet Standards Track protocol for the Internet community, and requests discussion and suggestions for improvements. Please refer to the current edition of the Official Internet Protocol Standards (https://www.rfc-editor.org/standards) for the standardization state and status of this protocol. Distribution of this memo is unlimited. This announcement is sent to the IETF-Announce and rfc-dist lists. To subscribe or unsubscribe, see https://www.ietf.org/mailman/listinfo/ietf-announce https://mailman.rfc-editor.org/mailman/listinfo/rfc-dist For searching the RFC series, see https://www.rfc-editor.org/search For downloading RFCs, see https://www.rfc-editor.org/retrieve/bulk Requests for special distribution should be addressed to either the author of the RFC in question, or to rfc-editor@rfc-editor.org. Unless specifically noted otherwise on the RFC itself, all RFCs are for unlimited distribution. The RFC Editor Team Association Management Solutions, LLC