ErrorCounts (ERRCNT)
Node makes available the counts for the number of errors that have occurred during the reception and transmission of packets on the ethernet interface.
PacketCounts (PKTCNT)
Node makes available the counts for the number of received and transmitted packets on the ethernet interface.
These are optional features supported by EthernetNetworkDiagnosticsCluster.
See
MatterSpecification.v13.Core ยง 11.16.4