Sua-04.ppt / 10 December 2000 / John A. Loughney SCCP User Adaptation Layer 49 th IETF Meeting: San Diego, CA draft-ietf-sigtran-sua-04.txt John A. Loughney.

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Sua-04.ppt / 10 December 2000 / John A. Loughney SCCP User Adaptation Layer 49 th IETF Meeting: San Diego, CA draft-ietf-sigtran-sua-04.txt John A. Loughney

Sua-04.ppt / 10 December 2000 / John A. Loughney What's New? Current version is draft-ietf-sigtran-sua-04.txt Added back the SCON message. Cleaned-up TLV format IANA Extensibility added Added suggestion for Source/Destination address (still need to resolve the exact format for this). Added section on Message Routing Scenarios Editorial Concerns

Sua-04.ppt / 10 December 2000 / John A. Loughney Issues to Discuss Segmenting/Reassembly within SUA SG manditory to do this Inactivity Test (connection-oriented procedure) Add SUA Message Routing Issues Routing Keys for SUA: only SSN and network appearance? Use of Network Appearance is incomplete. May have some problems in a multi-network environment. Clean-up appendicies. Are the needed?

Sua-04.ppt / 10 December 2000 / John A. Loughney Nature of the Networks (IP vs. SS7) The role of the SG and the different addressing mechanisms available to SUA is an issue. Two options: Make SCCP management & SS7 addressing transparent to SUA. Only the SG processes Point Codes and handles SCCP Management messages. Some applications/implemenations may wish to allow SCCP management messages and SS7-like provisioning. Resolution: allow point two, but allow them to be MAY or SHOULD rather than MUST. (If the SG "knows" the provisioning of the IPSPs, then it is optional to send the SCCP Management messages).

Sua-04.ppt / 10 December 2000 / John A. Loughney Source / Destination Address Source / Destination Address Header | Tag = 0x0103 | Parameter Length | | Routing Indicator | Address Indicator | / / \ address parameters \ TLV structures for the address: Global Title PC SSN IPv4 Address IPv6 Address Host Name

Sua-04.ppt / 10 December 2000 / John A. Loughney Wrap Up Next Draft to cover major issues (attempt to get it out next week) One more draft to cover editorial issues and clean-up text. Ready for Last Call? Interest in an SUA Bakeoff (April 2001)?