cmTrapDestinationCommunity is a read-write display string setting the SNMP community string the system includes in trap messages sent to a specific receiver. An administrator configures this to match whatever community string that receiving NMS expects for it to accept and process the incoming traps. For example, if a monitoring server is configured to only accept traps carrying the community string 'cmn-traps', the operator would set cmTrapDestinationCommunity to that same value for the corresponding table entry.