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1. Impacted components: SDNC, APPC
2. Contributors: AT&T, Orange, Intel
3. Functionalities
   1. For Casablanca, we will focus on the LCM action necessary for traffic migration. For Dublin and beyond, we will create a workflow within SO for traffic migration.
   2. MigrateTraffic LCM action (Alternative is ConfigModify LCM action is PTLs recommend to push MigrateTraffic LCM to Dublin)
      
      1. Anchor point ID (VNF ID in action identifier)
      2. Traffic distribution weights for all nodes covered by the anchor point that require changes
      3. Source, destination nodes - pool
      4. Flow distribution policy - equal distribution for e.g.
      5. Anchor points - e.g., DNS for layer-4+ VNFs
      6. Fine-grained flow filter
      7. Failure handler
   3. Mechanisms for traffic migration - implemented by controller
      1. Assessment report on commonalities/differences across VNF types – e.g., IP based redirection, DNS based or load balancer
4. Integration/testing
   
   1. For Casablanca, we will demonstrate traffic migration across 2 vFWs using traffic source as the anchor point
   2. Ansible playbook for adjusting the traffic weight on the traffic source (anchor point)
   3. Traffic weight before migration: 100,0 and traffic weight after migration: to 0,100

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