Re: [bfcpbis] WGLC on draft-ietf-bfcpbis-sdp-ws-uri-01
Paul Kyzivat <pkyzivat@alum.mit.edu> Mon, 02 May 2016 13:26 UTC
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To: "Ram Mohan R (rmohanr)" <rmohanr@cisco.com>, "bfcpbis@ietf.org" <bfcpbis@ietf.org>
References: <D30A9F22.68CF0%eckelcu@cisco.com> <56E871EB.9040802@alum.mit.edu> <D34CE18C.5A737%rmohanr@cisco.com>
From: Paul Kyzivat <pkyzivat@alum.mit.edu>
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Date: Mon, 02 May 2016 09:26:02 -0400
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Subject: Re: [bfcpbis] WGLC on draft-ietf-bfcpbis-sdp-ws-uri-01
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Ram, This all sounds good to me. Thanks, Paul On 5/2/16 7:17 AM, Ram Mohan R (rmohanr) wrote: > Hi Paul, > > Thanks for your feedback. Please see inline. See the attached diffs as > well with proposed changes > > -----Original Message----- > From: bfcpbis <bfcpbis-bounces@ietf.org> on behalf of Paul Kyzivat > <pkyzivat@alum.mit.edu> > Date: Wednesday, 16 March 2016 at 2:04 AM > To: "bfcpbis@ietf.org" <bfcpbis@ietf.org> > Subject: Re: [bfcpbis] WGLC on draft-ietf-bfcpbis-sdp-ws-uri-01 > >> Generally in good shape. A few comments: >> >> * Section 3.2 says: >> >> This section defines a new SDP media-level attribute, 'ws-uri' which >> can appear in any of the media lines. >> >> But this cannot appear in any media *line*. I think you mean it can >> appear in any media *section*. > > Right. I will fix this text > > > NEW: > This section defines a new SDP media-level attribute, 'ws-uri' which > can appear in any of the media sections. > > > >> >> This also applies to section 3.3. > > Yes. Will fix here as well with the above proposed text > >> >> * Section 4.1: >> >> The text here says that the *answerer* "MUST add an "a=ws-uri" or >> "a=wss-uri" attribute". But Section 4.2 admits the possibility that the >> offerer might be the server. Clearly it is the *server* side that needs >> to include "a=ws-uri" or "a=wss-uri", regardless of whether that side is >> offerer or answerer. > > Agree. I will reword the text to: > > NEW: > Furthermore, the server side, which could be either > the offerer or answerer, MUST add an "a=ws-uri" or "a=wss-uri" > attribute in the media section > depending on whether it wishes to use WebSocket or secure > WebSocket > > > > Is this better ? > > >> >> I can see how this might be important, such as in cases where a UAC >> sends an offerless invite to the server and the server wants to use >> BFCP. And the "client" might not be *able* to act as a web server. The >> possibility of this case should also be discussed elsewhere in the >> document. > > Agree. This is a good point. I will add a new sub-section 4.6 with below > text > > Title: Offerless INVITE Scenarios > > In some scenarios an endpoint (e.g., a browser) originating the call (UAC) > can send > an offerless INVITE to the server. The server will generate an offer > in response to the INVITE. In such cases the server MUST send an offer > with > setup attribute as ³passive" so as to accept incoming connection and > MUST include "a=wss-uri" or "a=ws-uri" attribute in the media section > depending on whether the server wishes to use WebSocket or secureWebSocket. > The SDP offer sent by the server will look like the example in Section 4.3. > > > Is the above text ok ? > > >> >> Also, this section has some problems in use of terminology: The >> construct "add an ... attribute in the "m=" line of each media-line ..." >> makes no sense. Perhaps what you mean is: "add an ... attribute in the >> media-section". > > Right will re-word the text at all places to indicate ... attribute in the > media-section... > > >> >> * Section 4.5: >> >> It would be good to mention the use of "a=connection:existing" for >> websocket reuse. > > Sure will mention a=connection:existing and its reference to RFC4145. See > the attached diff. > > > Thanks, > Regards, > Ram > >> >> Thanks, >> Paul >> >> >> On 3/13/16 12:55 PM, Charles Eckel (eckelcu) wrote: >>> This is to announce a 2 week WGLC on the draft: >>> https://tools.ietf.org/html/draft-ietf-bfcpbis-sdp-ws-uri-01 >>> >>> Please review and provide any comments by Monday, March 28, 2016. >>> Comments should be sent to the authors and the BFCPBIS WG list. >>> If you review the draft but do not have any comments, please send a note >>> to that effect as well. >>> >>> Thanks, >>> Charles >>> >>> >>> >>> _______________________________________________ >>> bfcpbis mailing list >>> bfcpbis@ietf.org >>> https://www.ietf.org/mailman/listinfo/bfcpbis >>> >> >> _______________________________________________ >> bfcpbis mailing list >> bfcpbis@ietf.org >> https://www.ietf.org/mailman/listinfo/bfcpbis >
- [bfcpbis] WGLC on draft-ietf-bfcpbis-sdp-ws-uri-01 Charles Eckel (eckelcu)
- Re: [bfcpbis] WGLC on draft-ietf-bfcpbis-sdp-ws-u… Paul Kyzivat
- Re: [bfcpbis] WGLC on draft-ietf-bfcpbis-sdp-ws-u… Charles Eckel (eckelcu)
- Re: [bfcpbis] WGLC on draft-ietf-bfcpbis-sdp-ws-u… Charles Eckel (eckelcu)
- Re: [bfcpbis] WGLC on draft-ietf-bfcpbis-sdp-ws-u… Ram Mohan R (rmohanr)
- Re: [bfcpbis] WGLC on draft-ietf-bfcpbis-sdp-ws-u… Paul Kyzivat
- Re: [bfcpbis] WGLC on draft-ietf-bfcpbis-sdp-ws-u… Gonzalo Salgueiro (gsalguei)
- Re: [bfcpbis] WGLC on draft-ietf-bfcpbis-sdp-ws-u… Charles Eckel (eckelcu)
- Re: [bfcpbis] WGLC on draft-ietf-bfcpbis-sdp-ws-u… Charles Eckel (eckelcu)
- Re: [bfcpbis] WGLC on draft-ietf-bfcpbis-sdp-ws-u… Ram Mohan R (rmohanr)