Device Reachability and Admin States
Device Reachability State—Indicates whether can communicate with the device using all configured protocols.
Icon |
Device Reachability State |
Description |
Troubleshooting |
Reachable |
can reach the device using SNMP, or the NCS 2K device using ICMP. |
— | |
Ping reachable |
can reach the device using Ping, but not via SNMP. |
Although ICMP ping is successful, check for all possible reasons why SNMP communication is failing. Check that device SNMP credentials are the same in both the device and in , whether SNMP is enabled on the device, or whether the transport network is dropping SNMP packets due to reasons such as mis-configuration, etc. . | |
Unreachable |
cannot reach the device using Ping. |
Verify that the physical device is operational and connected to the network. | |
Unknown |
cannot connect to the device. |
Check the device. |
Device Admin State—Indicates the configured state of the device (for example, if an administrator has manually shut down a device, as opposed to a device being down because it is not reachable by Ping).
Device Admin State |
Description |
Troubleshooting |
Managed |
is actively monitoring the device. |
Not Applicable. |
Maintenance |
is checking the device for reachability but is not processing traps, syslogs, or TL1 messages. |
To move a device back to Managed state, see Move a Device To and From Maintenance State. |
Unmanaged |
is not monitoring the device. |
In the Network Devices table, locate the device and click the "i" icon next to the data in the Last Inventory Collection Status column. The popup window will provide details and troubleshooting tips. Typical reasons for collection problems are:
If a device type is not supported, its Device Type will be Unknown. You can check if support for that device type is available from Cisco.com by choosing and then clicking Check for Updates. |
Unknown |
cannot connect to the device. |
Check the device. |