Liaison statement
IETF SIP WG Response to OMA LS 178 on XCAP diff-event

State Posted
Posted Date 2007-05-01
From Group sip
From Contact Dean Willis
To Contacts
Ccdrage Keith
Ileana Leuca
Victoria Gray
Response Contact
drage Keith
Technical Contact
drage Keith
Purpose In response
Attachments (None)
The IETF SIP working group thanks the OMA PAG working 
group for communicating with us in regards to PAG's 
requirements for an XCAP event package.

A design team met in an ad-hoc session during IETF 68, 
and reached the conclusion that a more general solution 
to the problem of change reporting on XCAP documents 
than that provided by the current SIPPING config 
framework draft would be desirable. The team achieved 
consensus on working from the document 
draft-urpalainen-sip-xcap-diff-event-01 as baseline 

It has not yet been determined by the IETF leadership 
as to which working group will develop this event 
package, but current indicators are that this would be 
within the scope of the SIPPING working group, and that 
initial editorial work will be provided in large part 
by Jari Urpalienen.

The largest open issue with this work appears to be 
related to the initial synchronization phase. Questions 
related to this were raised by Jari on the SIP mailing 
list on April 25. The SIP working group would like to 
encourage OMA PAG to participate in this discussion on 
the SIP mailing list and to consider whether the 
limitations of the current mechanism as discussed by 
Jari are acceptable for PAG's requirements.