[rfc-dist] BCP 233, RFC 8961 on Requirements for Time-Based Loss Detection

rfc-editor@rfc-editor.org Tue, 24 November 2020 01:24 UTC

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Subject: [rfc-dist] BCP 233, RFC 8961 on Requirements for Time-Based Loss Detection
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A new Request for Comments is now available in online RFC libraries.

        BCP 233        
        RFC 8961

        Title:      Requirements for Time-Based Loss Detection 
        Author:     M. Allman
        Status:     Best Current Practice
        Stream:     IETF
        Date:       November 2020
        Mailbox:    mallman@icir.org
        Pages:      12
        See Also:   BCP 233

        I-D Tag:    draft-ietf-tcpm-rto-consider-17.txt

        URL:        https://www.rfc-editor.org/info/rfc8961

        DOI:        10.17487/RFC8961

Many protocols must detect packet loss for various reasons (e.g., to
ensure reliability using retransmissions or to understand the level
of congestion along a network path).  While many mechanisms have been
designed to detect loss, ultimately, protocols can only count on the
passage of time without delivery confirmation to declare a packet
"lost". Each implementation of a time-based loss detection mechanism
represents a balance between correctness and timeliness; therefore,
no implementation suits all situations.  This document provides
high-level requirements for time-based loss detectors appropriate for
general use in unicast communication across the Internet.  Within the
requirements, implementations have latitude to define particulars
that best address each situation.

This document is a product of the TCP Maintenance and Minor Extensions Working Group of the IETF.


BCP: This document specifies an Internet Best Current Practices for the
Internet Community, and requests discussion and suggestions for 
improvements. Distribution of this memo is unlimited.

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