The row status variable is used according to installation and removal conventions for conceptual rows. When a DNS server is created by applying write operation on 'agentDhcp6ServerDnsServerCreate', row-status becomes 'active'. If row-status for a DnsServerEntry is set to 'destroy', the corresponding DNS server gets deleted.
Sources for this description
Netdisco MIB archive copiesNETGEAR official product and EOL MIB downloadsNETGEAR MIB copies (LibreNMS/Observium Community)