Concurrent management tasks:
1.
. Action daemon - automated action (work flow)
2.
.数据采集Collection daemon - collects data
3.
.能力检查Capability daemon - capability check on nodes
4.
.动态主机配置协议DHCP daemon - DHCP client for OpenNMS
5.
.发现Discovery daemon - initial and ongoing discovery互联网控制消息协议（Internet Control Message Protocol或简写ICMP）
6.
.事件Events manager daemon – manages/stores events
7.
.通知Notification daemon - external notification of users
8.
.运行情况Outage manager daemon - consolidates events
9.
.轮训Poller daemon - polls managed nodes/services
10.
.实时控制RTC manager daemon - real time availability information
11.
.陷阱SNMP trap daemon – handles SNMP traps
12.
.阈值Threshold daemon – monitor for threshold values
