add ping metrics to snmp metadata.csv

Author: ken-schneider

snmp/metadata.csv

@@ -8,6 +8,10 @@ datadog.snmp_traps.invalid_packet,count,,packet,,The number of invalid SNMP Trap
 datadog.snmp_traps.received,count,,packet,,The total number of SNMP Traps received.,0,snmp,,
 datadog.snmp_traps.traps_not_enriched,count,,packet,,The number of SNMP Traps that were not enriched.,0,snmp,,
 datadog.snmp_traps.vars_not_enriched,count,,,,The number of SNMP Traps variables that were not enriched.,0,snmp,,
+networkdevice.ping.avg_rtt,gauge,,,,Average ping round-trip time per check run,0,snmp,,
+networkdevice.ping.packet_loss,gauge,,,,Ping packet loss percentage,0,snmp,,
+networkdevice.ping.reachable,gauge,,,,Set to 1 when a device is reachable by ping,0,snmp,,
+networkdevice.ping.unreachable,gauge,,,,Set to 1 when a device is unreachable by ping,0,snmp,,
 snmp.accessPoint,gauge,,,,Constant metric equal to 1,0,snmp,,
 snmp.accessPointInterface,gauge,,,,Constant metric equal to 1,0,snmp,,
 snmp.adapterCollisions,count,,,,[Dell iDRAC] Total number of single collisions.,0,snmp,,