Metrics for NSX Policy Manager

VMware Aria Operations for Networks collects many metrics for NSX policy manager including the firewall metrics.

Metric Name	Metric API Name	Description
Distributed Firewall Application Rules Count	usage.distributedFirewallApplicationRuleCount.absolute.maximum.number	Number of distributed firewall rules of category application.
Distributed Firewall Emergency Rules Count	usage.distributedFirewallEmergencyRuleCount.absolute.maximum.number	Number of distributed firewall rules of category emergency.
Distributed Firewall Environment Rules Count	usage.distributedFirewallEnvironmentRuleCount.absolute.maximum.number	Number of distributed firewall rules of category environment.
Distributed Firewall Ethernet Rules Count	usage.distributedFirewallEthernetRuleCount.absolute.maximum.number	Number of distributed firewall rules of category Ethernet.
Distributed Firewall Infrastructure Rules Count	usage.distributedFirewallInfrastructureRuleCount.absolute.maximum.number	Number of distributed firewall rules of category infrastructure.