Re: [MMUSIC] I-D Action: draft-ietf-mmusic-msrp-usage-data-channel-11.txt - gateway
Jose M Recio <jose@ch3m4.com> Wed, 14 August 2019 11:45 UTC
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To: Christer Holmberg <christer.holmberg@ericsson.com>, "mmusic@ietf.org" <mmusic@ietf.org>
References: <20587CC6-5099-49DD-8F4B-A6FC68B068FB@ericsson.com>
From: Jose M Recio <jose@ch3m4.com>
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Date: Wed, 14 Aug 2019 19:45:08 +0800
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Subject: Re: [MMUSIC] I-D Action: draft-ietf-mmusic-msrp-usage-data-channel-11.txt - gateway
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On 12/08/19 02:43, Christer Holmberg wrote: > I think the procedures (when the gateway is NOT an MSRP B2BUA are as following): > > - The gateway MUST use CEMA towards the legacy network. Because, the gateway will insert itself in the MSRP path by modifying the c/m- lines, and it needs to make sure the remote peer sends its MSRP messages towards the gateway (the path points towards the data channel endpoint). > - The gateway MUST insert, remove of modify the path attribute. It will simply forward the path attribute received from the data channel- and legacy endpoints. > - The gateway MUST NOT modify the setup value > > I think the second and third bullet is trying to define some of the above, but the text is unclear. For example, it talks about forwarding TCP and TLS parameters. Forward what and where? The TCP and TLS parameters are only going to be used on the legacy network. > > - If the legacy network does*not* support CEMA, the gateway needs to act as an MSRP B2BUA. The last paragraph would remove a lot of issues and your proposal captures in a more clear way the gist of what I believe the draft intended to say. Following your sugestion I have uploaded the xml document to this github repo: https://github.com/josemrecio/draft-msrp-data-channel I have already incorporated your very good suggestion to work in progress version 13 draft and committed.
- Re: [MMUSIC] I-D Action: draft-ietf-mmusic-msrp-u… Christer Holmberg
- Re: [MMUSIC] I-D Action: draft-ietf-mmusic-msrp-u… Jose M Recio