[spring] Re: SRv6 SID Compression pcaps, Wireshark, and P4TG

Stefano Salsano <stefano.salsano@uniroma2.it> Thu, 24 July 2025 10:08 UTC

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Date: Thu, 24 Jul 2025 12:08:07 +0200
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From: Stefano Salsano <stefano.salsano@uniroma2.it>
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CC: Andrea Mayer <andrea.mayer@uniroma2.it>, Paolo Lungaroni <lplung001@gmail.com>
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Subject: [spring] Re: SRv6 SID Compression pcaps, Wireshark, and P4TG
Archived-At: <https://mailarchive.ietf.org/arch/msg/spring/vBVWGlvcO5cbkaLXfA8MwDb4enY>

Il 24/07/2025 09:00, Fabian Ihle ha scritto:
> Hi all,
> 
> new to the spring mailing list, so forgive me if this has been asked 
> before. I'm looking for example PCAP files of the different SRv6 SID 
> compression methods. Does anyone have such captures and would be willing 
> to share them? Also, is there an existing Wireshark dissector for SRv6 
> compression formats? If not, I’d be interested in collaborating to 
> develop one.

Hi Fabian,

I think there is already something, I am putting in cc: Andrea and Paolo 
working in my team

I hope we'll give you a more precise answer in the next days (depending 
on vacation periods of Andrea and Paolo...)

> For context: I am a PhD student developing the open-source traffic 
> generator P4TG. Our traffic generator achieves 10x 400 Gbit/s of traffic 
> generation with various customizable protocol stacks (including SRv6 
> with 3 uncompressed SIDs!). Further, P4TG includes many measurement 
> functions, such as TX/RX rates, RTT histograms and much more, all 
> rendered in a nice frontend, or available in the REST API. I plan to 
> extend P4TG with support for generating traffic using configurable SRv6 
> SID compression methods. To validate my implementation, I’m looking for 
> "ground truth" PCAPs.

sounds interesting :-)

having worked with Linux implementation of SRv6, it should be relatively 
easy to generate such "ground truth" PCAP (of course as long as we can 
take Linux implementation as ground truth... anyway we can surely help)

> P4TG is built for the Intel Tofino (2) hardware, which is EOL. However, 
> the SDE has been open sourced which allows you to run P4TG without the 
> Intel NDA (more information here: https://github.com/p4lang/open- 
> p4studio/issues/101). Hardware is still acquirable.
> 
> If the P4TG project sounds interesting to you , here's some more 
> information: https://github.com/uni-tue-kn/P4TG

we'll give a look

ciao
Stefano



> 
> See you in the WG session!
> 
> Best,
> 
> Fabian
> 
> 
> 
> _______________________________________________
> spring mailing list -- spring@ietf.org
> To unsubscribe send an email to spring-leave@ietf.org


-- 
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Prof. Stefano Salsano
Dipartimento Ingegneria Elettronica
Universita' di Roma Tor Vergata
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[spring] SRv6 SID Compression pcaps, Wireshark, a… Fabian Ihle
[spring] Re: SRv6 SID Compression pcaps, Wireshar… Stefano Salsano