Re: [stir] Making STIR SIP messages smaller

Yeah - like nearly 20 years ago when we added headers like History-Info.
 And, really if you want to use a text based protocol, you surely can't
have small message sizes as a design priority.

On Tue, Apr 13, 2021 at 4:40 AM Christer Holmberg <christer.holmberg=
40ericsson.com@dmarc.ietf.org> wrote:

>
>
> >I agree that we need to figure out a way to make Identity headers
> smaller. As it stands right now, the Identity header with "shaken" PASSporT
> type adds around 600 bytes to an INVITE message.
>
> >This makes typical SIP INVITE messages go from around 1K in size to
> 1.6K, which is bigger than the UDP MTU.
>
>
>
> With or without Identity, didn’t that ship sail a long time ago? :)
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>
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> Regards,
>
>
>
> Christer
>
>
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>
> On Mon, Apr 12, 2021 at 5:39 PM Alec Fenichel <
> alec.fenichel@transnexus.com> wrote:
>
> I guess what I am trying to say is that I think we should remove ppt from
> the examples because as you say, people tend to code to examples and
> smaller Identity headers would be ideal.
>
>
>
> I don’t mean to hijack this thread, but I have been meaning to bring this
> up anyways and it is related. Is there a reason I’m just overlooking for
> requiring the “info” parameter when a full-form PASSporT is used? If not,
> can we make it optional? The reason I ask is that with OOB, the transit
> provider receives a PASSporT out-of-band and then needs to construct an
> Identity header. Because of the “info” parameter requirement, the transit
> provider must decode the PASSporT in order to determine the “info”
> parameter. This is the only reason that a transit provider needs to decode
> the PASSporT. This isn’t difficult so it doesn’t really matter, but I
> figured I’d ask about potentially making the “info” parameter optional.
> Also, it makes the Identity header smaller which is always a good thing.
>
>
>
> Sincerely,
>
>
>
> Alec Fenichel
>
> Senior Software Architect
>
> alec.fenichel@transnexus.com
>
> +1 (407) 760-0036
>
> TransNexus
>
>
>
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