Re: [Ice] Trickle ICE review

Hi,

My point is that you can end a session without doing a re-start.

Regards,

Christer

From: Peter Thatcher [mailto:pthatcher@google.com]
Sent: 30 March 2017 04:10
To: Christer Holmberg <christer.holmberg@ericsson.com>; Ari Keränen <ari.keranen@ericsson.com>; Peter Saint-Andre <stpeter@stpeter.im>
Cc: ice@ietf.org
Subject: Re: [Ice] Trickle ICE review

Actually 7675 in the text seems to imply that "new session == ICE restart", which is exactly "until a restart" means.   You're in one session until you make a new session by doing an ICE restart.   It seems consistent to me.

On Tue, Mar 28, 2017 at 11:19 AM Christer Holmberg <christer.holmberg@ericsson.com<mailto:christer.holmberg@ericsson.com>> wrote:
Hi,

I agree that adding a definition of "ICE session" to 5245bis is a good idea.

However, I am not sure simply saying "until a re-start would actually work". You may never do a re-start - often you simply terminate the session.

Also, in RFC 7675 we have the following text:

"That means that a new session, or an ICE restart,..."

...which seems to suggest that a new session and an ICE restart are not related. However, that's probably a minor issue, and we can fix that with an errata if needed.

Regards,

Christer

-----Original Message-----
From: Ice [mailto:ice-bounces@ietf.org<mailto:ice-bounces@ietf.org>] On Behalf Of Ari Keränen
Sent: 28 March 2017 19:43
To: Peter Saint-Andre <stpeter@stpeter.im<mailto:stpeter@stpeter.im>>; Peter Thatcher <pthatcher@google.com<mailto:pthatcher@google.com>>
Cc: ice@ietf.org<mailto:ice@ietf.org>
Subject: Re: [Ice] Trickle ICE review

> On 28 Mar 2017, at 11:27, Peter Saint-Andre <stpeter@stpeter.im<mailto:stpeter@stpeter.im>> wrote:
>
>>> - The name "ICE negotiation session" with definition of "A virtual
>>> session ..." is confusing.   I understand that we need a word for
>>> "period between restarts" and "period across restarts".  But what
>>> does "virtual" mean in this context?  And what does "negotiation"
>>> mean in "ICE negotiation session"?  Here's a possible suggestion: call it
>>> "single-exchange session".   A single-exchange session is the period
>>> from a single exchange of ICE description until the next exchange.
>>> A "normal" ICE session is basically a multi-exchange session.
>>
>>    This might be clearer:
>>
>>       ICE Session:  All of the ICE-related interactions between ICE agents
>>          up until an ICE restart (if any).
>>
>>    However, that definition probably belongs in 5245bis. The term as used
>>    in the Trickle specification is not limited to interactions between
>>    Trickle ICE agents.
>>
>>
>> I like that idea of using "ICE session" to mean the thing between
>> restarts as long as it's compatible with 5245 and 5245bis and it
>> doesn't cause confusion such that people think an "ICE session" is
>> the time period across all ICE restarts.
>>
>> I originally thought it should go in 5245bis also, but Ari thought it
>> didn't make sense there since it would never use the term after
>> defining it.
>
> It's already used in 5245bis, isn't it? But we can continue to define
> it in Trickle.

It's used but not defined actually. We'll add this to the terminology of 5245bis.

Cheers,
Ari
_______________________________________________
Ice mailing list
Ice@ietf.org<mailto:Ice@ietf.org>
https://www.ietf.org/mailman/listinfo/ice