If your network uses Cisco ISE for device authentication, you need to configure the Cisco ISE settings in Cisco DNA Center. On average, polling 500 devices takes approximately 20 minutes.Ĭisco ISE has two different use cases in Cisco DNA Center: This prevents stale device data, if any, from being displayed. Only the devices that have been active for less than one day are displayed. Occurs for each device, link, host, and interface. Also, a configuration change in the device triggers an SNMP trap, which in turn triggers device resynchronization. For more information, see Update the Device Polling Interval. However, youĬan change this interval as required for your network environment. For a list of devices, see Discovery Prerequisites.Īfter the initial discovery, Cisco DNA Center maintains the inventory by polling the devices at regular intervals. Network Configuration Protocol (NETCONF). (This protocol is used to discover IP phones and some servers.) (IPDT or SISF must be enabled on the device.) IP Device Tracking (IPDT) or Switch Integrated Security Features (SISF). Inventory uses the following protocols, as required: The Inventory feature can also work with the Device Controllability feature to configure the required network settings onĭevices, if these settings are not already present on the device. The Inventory function retrieves and saves details, such as host IP addresses, MAC addresses, and network attachment points
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