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RFC 8239, "Data Center Benchmarking Methodology", August 2017

Source of RFC: bmwg (ops)

Errata ID: 6763
Status: Rejected
Type: Technical
Publication Format(s) : TEXT

Reported By: Leonard Yu
Date Reported: 2021-11-30
Rejected by: Mohamed Boucadair
Date Rejected: 2025-03-28

Section 3.2 says:

Last iteration: Ingress port 1 sending line rate to egress
port 2, ingress port 3 sending line rate to egress port 4, etc.
Ingress port N-1 and port N will oversubscribe, at 1% of line
rate, egress port N-3 and port N-2, respectively. Measure the
buffer size value by multiplying the number of extra frames
sent by the frame size for each egress port.

It should say:

Last iteration: Ingress port 1 sending line rate to egress
port 2, ingress port 3 sending line rate to egress port 4, etc.
Ingress port N-1 and port N will oversubscribe, at 1% of line
rate, egress port N-4 and port N-3, respectively. Measure the
buffer size value by multiplying the number of extra frames
sent by the frame size for each egress port.

Notes:

If
#1, 1->2, 3->4, 5->6, 7->8, ... and N-1->2, N->3
#2, 1->2, 3->4, 5->6, 7->8, ... and N-1->4, N->5

Then
#last, 1->2, 3->4, 5->6, 7->8, ... and N-1->N-4, N->N-3

Otherwise, the general equation won't satisfy #1 and #2
--VERIFIER NOTES--
Per https://mailarchive.ietf.org/arch/msg/bmwg/gILuO-tG7uTC_ve5kfYyJSo-7h4/

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