Viewing the List of Unreachable Devices
- Viktoryia Varapayeva (Deactivated)
The Devices Not Present page lists the subset of the active switch and switch-router devices, excluding end hosts, with which Switch Port Management has lost communication over the last measurement time period. The device is off the network for some reason, such as having been turned off or rebooted or having settings changed so that it is out of Discovery range.
The default Devices Not Present page consists of the following data set:
Action icon: Provides the Action menu with View Device History, Open Telnet Session, Open SSH Session, and Topology Viewer options.
Device Name: The configured name of the device. By default, this column sorts the Devices Not Present page in ascending order.
IP Address: The host IP address of the network device. This is a live link to the Device Viewer, which automatically displays the Issues page.
DNS Name: The DNS-resolved host name, if any, of the network device.
Last Seen: The timestamp of the last successful poll of the device, or the last time the device was seen on the network by other means such as through a device's ARP table.
Last Changed: The timestamp of the last change performed on the device.
A second page under End Hosts, End Hosts Not Present, lists any end host devices that have lost communication with the network.