Feature Overview 

Current Octavia implementation supports Active-Standby HA configuration. This is great from HA perspective. However active-standby has limited in terms of faster failure detection and ability to achieve higher aggregate forwarding performance (throughput, connections/sec, total number of connections). These limitations hinder adoption of Octavia in deployments where higher forwarding performance and faster failure detection are required, and it is difficult to compete with the commercial load balancers available in the market. 

Goals

• Ability to achieve better HA state with faster failover
• Auto-scaling of amphora VMs on failure to maintain the same level of HA
• Higher aggregate forwarding performance

Requirements (mandatory -_ Complete while in Refinement status):
A list of specific needs, capabilities, or objectives that a Feature must deliver to satisfy the Feature. Some requirements will be flagged as MVP. If an MVP gets shifted, the Feature shifts. If a non MVP requirement slips, it does not shift the feature.

Upstream Specification Reference: 

https://docs.openstack.org/octavia/latest/contributor/specs/version1.1/active-active-l3-distributor.html

Done - Acceptance Criteria (mandatory - Complete while in Refinement status):
Acceptance Criteria articulates and defines the value proposition - what is required to meet the goal and intent of this Feature. The Acceptance Criteria provides a detailed definition of scope and the expected outcomes - from a users point of view
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Use Cases - i.e. User Experience & Workflow: (Initial completion while in Refinement status):
Include use case diagrams, main success scenarios, alternative flow scenarios.
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Out of Scope __(Initial completion while in Refinement status):
High-level list of items or persona’s that are out of scope.
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Documentation Considerations __(Initial completion while in Refinement status):
Provide information that needs to be considered and planned so that documentation will meet customer needs. If the feature extends existing functionality, provide a link to its current documentation..
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Questions to Answer __(Initial completion while in Refinement status):
Include a list of refinement / architectural questions that may need to be answered before coding can begin.
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Background and Strategic Fit (Initial completion while in Refinement status):
Provide any additional context is needed to frame the feature.
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Customer Considerations __(Initial completion while in Refinement status):
Provide any additional customer-specific considerations that must be made when designing and delivering the Feature.
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Team Sign Off (Completion while in Planning status)

• All required Epics (known at the time) are linked to the this Feature
• All required Stories, Tasks (known at the time) for the most immediate Epics have been created and estimated
• Add - Reviewers name, Team Name
• Acceptance == Feature as “Ready” - well understood and scope is clear - Acceptance Criteria (scope) is elaborated, well defined, and understood
• Note: Only set FixVersion/s: on a Feature if the delivery team agrees they have the capacity and have committed that capability for that milestone

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