Re: [MMUSIC] ICE Mobility

> -----Original Message-----
> From: zhou.sujing@zte.com.cn [mailto:zhou.sujing@zte.com.cn]
> Sent: Thursday, July 26, 2012 4:59 AM
> To: Dan Wing
> Cc: mmusic@ietf.org; mmusic-bounces@ietf.org; 'Prashanth Patil
> (praspati)'; 'Tirumaleswar Reddy (tireddy)'
> Subject: 答复: [MMUSIC] ICE Mobility
> 
> 
> Hi,Dan
> 
>  Have simultaneous mobility been considered in this draft?

No.

A TURN server would be safe if both endpoints are losing IP address at the
same time, so that the TURN server can be the stable address.  But that is
not yet discussed in the draft.  Transitioning from TURN to p2p, during a
mobility event, is something we plan to add to the document.  First we
wanted to discuss TURN (and the new attributes) and discuss ICE (and the new
attributes).  Combining the two, into the most complex scenario where both
endpoints experience loss of IP interface at the same time, is what we
wanted to describe last after the easier scenarios are clearer.

-d

> 
> Regards~~~
> 
> -Sujing Zhou
> 
> 
> 
> "Dan Wing" <dwing@cisco.com>
> 发件人:  mmusic-bounces@ietf.org
> 
> 2012-07-25 08:19 收件人
> <mmusic@ietf.org>
> 抄送
> "'Prashanth Patil \(praspati\)'" <praspati@cisco.com>, "'Tirumaleswar
> Reddy \(tireddy\)'" <tireddy@cisco.com>
> 主题
> [MMUSIC] ICE Mobility
> 
> 
> 
> 
> 
> 
> MMUSIC,
> 
> Losing or acquiring an interface often happens with mobile devices,
> such as
> when a device gets within WiFi range or leaves 3G range.  Today the
> industry
> generally relies on techniques below layer 3 to hide the IP address
> change
> from the remote endpoint (e.g., LISP, Mobile IP).  These existing
> techniques
> have some drawbacks, such as requiring support in the network
> infrastructure.
> 
> ICE Mobility explores how to accomplish a similar function for ICE-
> initiated
> flows without needing support in the endpoint or in the network.
> Instead,
> the mobility support is provided at the ICE layer (such as RTP, SRTP,
> or
> RTCWEB's data channel (SRTP over UDP)).  The document discusses how two
> approaches:  (a) when both endpoints support ICE Mobility, and (b) when
> only
> one endpoint supports ICE Mobility, which uses a TURN server -- a
> different
> sort of network infrastructure.
> 
> http://tools.ietf.org/html/draft-wing-mmusic-ice-mobility
> 
> 
> We are unlikely to get time in MMUSIC to present this draft, but are
> interested in feedback.
> 
> -d
> 
> 
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