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DOIC Restructuring: Addressing Open Issues and Proposed Improvements in Diameter Agent Behavior

The restructuring of DOIC is now complete, with some cleanup needed in version -04. Currently, there are 13 open issues, including topics such as behavior for realm overload, overload control endpoints under-specified, and issues surrounding agents acting on behalf of clients that don't support DOIC. Proposals aim to refine reporting for realm-routed requests, adjust session-ending request guidance, and enhance overload control mechanisms. Key considerations also include handling multiple reporting nodes and improvements to agent capability announcements.

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DOIC Restructuring: Addressing Open Issues and Proposed Improvements in Diameter Agent Behavior

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  1. DOIC Status

  2. DOIC Status • Restructuring complete • Some cleanup in to be in -04 version • 13 open issue remaining

  3. Open Issues #23DOIC behavior for realm overload #25Section 3.1.5 Diameter Agent Behavior #26Overload Control Endpoints under specified #27Behavior of agent acting on behalf of Client that does not support DOIC #35additional report types are proposed #43Overstated guidance on session-ending requests. #48Setting M-Bit gives wrong semantics #55Lack of overload control for realm overload condition #57Handling of "Realm-Routed" Overload report type #58Multiple Reporting Nodes for realm-routed-request type reports #60Agent Overload Report Handling considerations #61Agent Capability Announcement Considerations #66Non-Supporting Agent Changing Origin-Host

  4. #23 DOIC behavior for realm overload • Proposal from last meeting: • Change name from realm report to realm-routed-request • Effects only realm-routed requests • Separate extension for a report that controls all traffic to the realm, independent of the request type

  5. #25 Section 3.1.5 Diameter Agent Behavior • Proposed behavior in ietf-donovan-doic-agent-cases.txt

  6. #26 Overload Control Endpoints under specified • Proposed behavior in ietf-donovan-doic-agent-cases.txt

  7. #27 Behavior of agent acting on behalf of Client that does not support DOIC • Proposed behavior in ietf-donovan-doic-agent-cases.txt

  8. #35 additional report types are proposed • Proposal to allow for overload reports to be targeted to a single client • Current proposal is for this to be addressed in a separate extension

  9. #43 Overstated guidance on session-ending requests. • Minor wording change requested. • Will be incorporated into -04.

  10. #48 Setting M-Bit gives wrong semantics • Proposal – explicit guidance that M-bit should never be set.

  11. #55 Lack of overload control for realm overload condition • Proposal to address in a DOIC extension

  12. #57 Handling of "Realm-Routed" Overload report type • Proposal to close based on behavior currently in draft (need to verify correct wording exists)

  13. #58 Multiple Reporting Nodes for realm-routed-request type reports • Needs to be addressed. • Proposal • Allow for multiple reporting nodes for the RRR/Realm report type • Client only listens to source of first received report until it expires or is removed • Question – Do we need to attribute who sent the report?

  14. #60 Agent Overload Report Handling considerations • Proposed behavior in ietf-donovan-doic-agent-cases.txt

  15. #61 Agent Capability Announcement Considerations • Proposed behavior in ietf-donovan-doic-agent-cases.txt

  16. #66 Non-Supporting Agent Changing Origin-Host • Needs to be addressed

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