Cisco SX350 Series Administration Manual page 666

Smart Network Application (SNA)
Topology View
Cisco Sx350, SG350X, SG350XG, Sx550X & SG550XG Series Managed Switches, Firmware Release 2.2.5.x
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Selectable and detectable by the search functionality. When an offline device is
selected, the information panel displays the device's basic identifying information
and tags, but no services, notifications, or general information beyond the basic
identifiers.
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Unable to flaunch the device explorer or the device management GUI of offline
devices.
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Can be manually removed. After a device is removed, it no longer appears on the
topology map until it is detected or added manually. All tags associated with this
device are lost, and is not restored even if the device is detected again in the future.
SNA periodically attempts to connect to offline devices to verify if a managed or an
SNA switch has come back online. During these attempts, an indication is displayed on
the device.
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Client devices – End-point clients of the network (for example, PCs, IP phones)
usually connected to a backbone device. In the topology map, these devices are
displayed grouped with other devices of the same type that are connected to the same
backbone device. These grouping of devices are called client groups, and individual
clients comprising a client group can be viewed by clicking and entering its explorer
(see Explorers).
If a device has one or more client devices attached to it, a + appears on it:
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