This test verify if OpenConfig metadata leaf at root is updated according to pushed config and not reverted or otherway modified, Even if many rapid, concurrent non-write requests are served while setRequest is in process (and SetResponse is not send yet). In case metadata leaf at root value changes, test fails.

dut.testbed

• prepare 2 large OpenConfig configurations that only differs in root-level netadata/annotation - 1st_LARGE_CONFIGURATION and 2nd_LARGE_CONFIGURATION. Configuration should exercise following branches of Openconfig:
  • /interfaces/
  • /network-instances/
  • /qos/
  • /system/
  • /routing-policy/
  • /components/
  • /sampling/
  • /lldp/
  • /lacp/
  • /protobuf-metadata
• Push 1st_LARGE_CONFIGURATION and wait for SetResponse that confirm push was sucesfull.
• Send subscribe ONCE for configuration root-level metadata and verify that it is identical corresponding root-level metadata of 1st_LARGE_CONFIGURATION.
• For REQUEST of type (GetRequest, SubscribeRequest, CapabilityRequest)
  • Repeat sending rapidly subsequent REQUEST requests for configuration root-level metadata (GetRequest, SubscribeRequest).
  • While above REQUESTS are send, push SetRequest replace with 2nd_LARGE_CONFIGURATION.
  • After SetResponse is recived confirming sucesfull push of 2nd_LARGE_CONFIGURATION:
    • stop sending REQUEST requests
    • wait 5 seconds
    • SubscribeRequest once for configuration root-level metadata and verify that it is identical corresponding root-level metadata of 2nd_LARGE_CONFIGURATION.

• /@/openconfig-metadata:protobuf-metadata

Note: WBB implementations need not support this annotation at paths deeper than the root (i.e., a configuration that contains openconfig-metadata:protobuf-metadata at any level other than under the root can be rejected). The WBB device implementation can map this to an internal path to store the configuration.

• /@/openconfig-metadata:protobuf-metadata

FFF