netdev - Re: gsmtap design/extensions?

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Message-ID: <CAPEnp=bHTVARr7WA9Qkq4=y7kk8_FLWhrkqKOEXubMO4X=BHCw@mail.gmail.com>
Date:   Wed, 10 Apr 2019 13:35:52 +0700
From:   Vadim Yanitskiy <axilirator@...il.com>
To:     Johannes Berg <johannes@...solutions.net>
Cc:     Harald Welte <laforge@...monks.org>,
        OpenBSC Mailing List <openbsc@...ts.osmocom.org>,
        Sean Tranchetti <stranche@...eaurora.org>, radiotap@...bsd.org,
        Dan Williams <dcbw@...hat.com>, netdev@...r.kernel.org,
        linux-wireless@...r.kernel.org,
        Aleksander Morgado <aleksander@...ksander.es>,
        Subash Abhinov Kasiviswanathan <subashab@...eaurora.org>,
        Bjørn Mork <bjorn@...k.no>
Subject: Re: gsmtap design/extensions?

Hello Johannes,

FYI, there already was a discussion about GSMTAPv3:

https://www.youtube.com/watch?v=vum9jzavZi0&list=PL07C78AF831FFE8F9&index=10

but unfortunately, nobody has invested time into this (yet?).

> 1) Why the design with encapsulating it in UDP?

This gives us a possibility to "demux" multiple GSMTAP streams on the
receiving side, e.g. if you are running multiple processes.

> 2) The format of gsmtap doesn't seem very extensible [...]

ACK. I definitely support the idea of using TLVs.

With best regards,
Vadim Yanitskiy.