The web console is showing the status of a network router as “down”, however the node is up and running. Which two of the following causes could be creating the issue? (Choose two.)
A.
agent connection status with the polling engine is "down"
B.
ICMP is blocked between the device and the polling engine
C.
router is configured as a parent in a node dependency
D.
SNMP is blocked between the device and the polling engine
Comprehensive and Detailed Explanation From Exact Extract:
If the web console shows a router as “down” but it is actually operational:
ICMP is blocked: If the polling engine cannot ping the device, it will be reported as down.
SNMP is blocked: If SNMP polling fails (for devices polled via SNMP), detailed data and status cannot be retrieved, resulting in a down state.
Agent connection issues may apply for agent-based monitoring but are not typical for network routers. Node dependency configuration could affect child node status display but would not cause the parent node to show “down”.
[Reference:, , NPM Administrator Guide, “Troubleshooting Node Status – Down State Causes”]
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