Date: Tue, 17 Mar 2026 07:28:18 +0100
From: Sebastian Moeller <moeller0@gmx.de>
To: ippm@ietf.org
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Precedence: list
Subject: =?utf-8?q?=5Bippm=5D_Re=3A_I-D_Action=3A_draft-ietf-ippm-asymmetrical-pkts-1?=
	=?utf-8?q?4=2Etxt?=
Archived-At: 
 <https://mailarchive.ietf.org/arch/msg/ippm/EgBnRwkE5wpELfyBfsSr4334-JA>

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Dear all,

decent ID=2E I do miss a paragraph though in the security consideration se=
ctions that explicitly discusses the fact that asymmetric traffic generatio=
n lends itself well as an attack amplifier=2E
Any protocol that elicits response packets can, with source address spoofi=
ng, be abused for denial of service attacks, but those protocols that can a=
mplify such traffic are IMHO especially tempting targets for abuse=2E And t=
hey do not come any mord tempting thsn allowing both per packet size and pa=
cket rate amplification=2E

Even if the referenced RFCs in the security considerations might already i=
mplicitly or explicitly discuss this, having an elicit paragraph in this ID=
 seems like a good idea=2E

Best
         Sebastian


On March 17, 2026 6:41:17 AM GMT+01:00, internet-drafts@ietf=2Eorg wrote:
>Internet-Draft draft-ietf-ippm-asymmetrical-pkts-14=2Etxt is now availabl=
e=2E It
>is a work item of the IP Performance Measurement (IPPM) WG of the IETF=2E
>
>   Title:   Performance Measurement with Asymmetrical Traffic Using Simpl=
e Two-Way Active Measurement Protocol (STAMP)
>   Authors: Greg Mirsky
>            Ernesto Ruffini
>            Henrik Nydell
>            Richard Foote
>            Will Hawkins
>   Name:    draft-ietf-ippm-asymmetrical-pkts-14=2Etxt
>   Pages:   20
>   Dates:   2026-03-16
>
>Abstract:
>
>   This document defines an optional extension to the Simple Two-Way
>   Active Measurement Protocol (STAMP) that enables a Session-Reflector
>   to send asymmetrical packets, that is, response packets whose size or
>   quantity differs from those sent by the Session-Sender=2E  While
>   standard STAMP exchanges are symmetrical, certain measurement
>   scenarios benefit from reflected packets of different lengths or
>   additional responses to better approximate application traffic
>   conditions=2E  The extension specifies the Reflected Test Packet
>   Control TLV and associated procedures, analyzes challenges in active
>   performance measurement (including in multicast environments), and
>   describes STAMP behaviors to improve measurement efficiency and
>   reduce network impact=2E
>
>The IETF datatracker status page for this Internet-Draft is:
>https://datatracker=2Eietf=2Eorg/doc/draft-ietf-ippm-asymmetrical-pkts/
>
>There is also an HTML version available at:
>https://www=2Eietf=2Eorg/archive/id/draft-ietf-ippm-asymmetrical-pkts-14=
=2Ehtml
>
>A diff from the previous version is available at:
>https://author-tools=2Eietf=2Eorg/iddiff?url2=3Ddraft-ietf-ippm-asymmetri=
cal-pkts-14
>
>Internet-Drafts are also available by rsync at:
>rsync=2Eietf=2Eorg::internet-drafts
>
>
>_______________________________________________
>ippm mailing list -- ippm@ietf=2Eorg
>To unsubscribe send an email to ippm-leave@ietf=2Eorg

--=20
Sent from my Android device with K-9 Mail=2E Please excuse my brevity=2E
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<html><head></head><body><div dir=3D"auto">Dear all,<br><br>decent ID=2E I =
do miss a paragraph though in the security consideration sections that expl=
icitly discusses the fact that asymmetric traffic generation lends itself w=
ell as an attack amplifier=2E<br>Any protocol that elicits response packets=
 can, with source address spoofing, be abused for denial of service attacks=
, but those protocols that can amplify such traffic are IMHO especially tem=
pting targets for abuse=2E And they do not come any mord tempting thsn allo=
wing both per packet size and packet rate amplification=2E<br><br>Even if t=
he referenced RFCs in the security considerations might already implicitly =
or explicitly discuss this, having an elicit paragraph in this ID seems lik=
e a good idea=2E<br><br>Best<br>=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=
=C2=A0 Sebastian<br></div><br><br><div class=3D"gmail_quote"><div dir=3D"au=
to">On March 17, 2026 6:41:17 AM GMT+01:00, internet-drafts@ietf=2Eorg wrot=
e:</div><blockquote class=3D"gmail_quote" style=3D"margin: 0pt 0pt 0pt 0=2E=
8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">
<pre class=3D"com-fsck-k9__plain-text-message-pre"><div dir=3D"auto">Inter=
net-Draft draft-ietf-ippm-asymmetrical-pkts-14=2Etxt is now available=2E It=
<br>is a work item of the IP Performance Measurement (IPPM) WG of the IETF=
=2E<br><br>   Title:   Performance Measurement with Asymmetrical Traffic Us=
ing Simple Two-Way Active Measurement Protocol (STAMP)<br>   Authors: Greg =
Mirsky<br>            Ernesto Ruffini<br>            Henrik Nydell<br>     =
       Richard Foote<br>            Will Hawkins<br>   Name:    draft-ietf-=
ippm-asymmetrical-pkts-14=2Etxt<br>   Pages:   20<br>   Dates:   2026-03-16=
<br><br>Abstract:<br><br>   This document defines an optional extension to =
the Simple Two-Way<br>   Active Measurement Protocol (STAMP) that enables a=
 Session-Reflector<br>   to send asymmetrical packets, that is, response pa=
ckets whose size or<br>   quantity differs from those sent by the Session-S=
ender=2E  While<br>   standard STAMP exchanges are symmetrical, certain mea=
surement<br>   scenarios benefit from reflected packets of different length=
s or<br>   additional responses to better approximate application traffic<b=
r>   conditions=2E  The extension specifies the Reflected Test Packet<br>  =
 Control TLV and associated procedures, analyzes challenges in active<br>  =
 performance measurement (including in multicast environments), and<br>   d=
escribes STAMP behaviors to improve measurement efficiency and<br>   reduce=
 network impact=2E<br><br>The IETF datatracker status page for this Interne=
t-Draft is:<br><a href=3D"https://datatracker=2Eietf=2Eorg/doc/draft-ietf-i=
ppm-asymmetrical-pkts/">https://datatracker=2Eietf=2Eorg/doc/draft-ietf-ipp=
m-asymmetrical-pkts/</a><br><br>There is also an HTML version available at:=
<br><a href=3D"https://www=2Eietf=2Eorg/archive/id/draft-ietf-ippm-asymmetr=
ical-pkts-14=2Ehtml">https://www=2Eietf=2Eorg/archive/id/draft-ietf-ippm-as=
ymmetrical-pkts-14=2Ehtml</a><br><br>A diff from the previous version is av=
ailable at:<br><a href=3D"https://author-tools=2Eietf=2Eorg/iddiff?url2=3Dd=
raft-ietf-ippm-asymmetrical-pkts-14">https://author-tools=2Eietf=2Eorg/iddi=
ff?url2=3Ddraft-ietf-ippm-asymmetrical-pkts-14</a><br><br>Internet-Drafts a=
re also available by rsync at:<br>rsync=2Eietf=2Eorg::internet-drafts<hr>ip=
pm mailing list -- ippm@ietf=2Eorg<br>To unsubscribe send an email to ippm-=
leave@ietf=2Eorg<br></div></pre></blockquote></div><div dir=3D"auto"><div c=
lass=3D'k9mail-signature'>-- <br>Sent from my Android device with K-9 Mail=
=2E Please excuse my brevity=2E</div></div></body></html>
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