VCF Operations for Networks 9.0.0
VCF Operations for Networks 9.0.1
This is unexpected behavior. DFW Firewall rules are applied at different layers. But the Firewall masked rule alert should not be raised if the masked rule and masking rules are of different layers.
This issue is seen where Computation of the Alert in VCF Aria Operations for Networks is done correctly as per ETHERNET > EMERGENCY > INFRASTRUCTURE > ENVIRONMENT > APPLICATION.
The segregation of L2 and L3 alerts is not handled correctly hence the the Alert for Firewall rules masked by preceding is triggered.
This issue is fixed in Future release of VCF 9.x
As a workaround, today the only option is to manually archive the mass masking alerts seen on GUI
Deactivate/Archive Alerts in VCF Operations for Networks 9.0.0
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