Viewing a network device
A network device object in BMC Discovery represents a switch, a router, a firewall, a SAN switch, and so on. Network devices are discovered using SNMP credentials. A valid credential is required to create a Network Device node.
You should either discover or import network devices. Doing both will result in duplicates where a discovered network device is also imported.
To view a network device
- From the main menu, select Explore > Data.
The Infrastructure page opens.
- In the Network & Printers section, click Network Devices.
- Select a network device from the list.
The following screen illustrates a typical example of a discovered network device.
The information fields for a discovered network device object are arranged in the following groups:
- General Details—General information about the network device such as its name, type, and model. For more information, see General Details.
- Identity—Information about domain names and IP addresses. For more information, see Identity.
- Operating System—The Operating system information for this network device. For more information, see Operating System.
- Infrastructure—Information about the services that the network device provides. For more information, see Infrastructure.
- Inference—The inference details. For more information, see Inference.
You can also display provenance information by clicking the Show Provenance button. Provenance information is meta-information describing how the other information came to exist. For more information, see Provenance Information.
The following table lists information fields that can be displayed in the General Details group for a network device.
The name of the network device. If no name is discovered then this is the IP address of the device.
The type of the network device, such as Switch, Router, and so on.
The vendor of the network device.
The model name of the network device.
Whether the exact SNMP device has been tested by BMC. This can be either:
The following table lists information fields that can be displayed in the Identity group for a network device object.
The serial number of the network device.
System Object ID
The SNMP System Object ID of the network device.
The following table lists information fields that can be displayed in the Operating System group for a network device object.
Discovered OS Class
The discovered OS class for the network device (for example, Embedded).
Discovered OS Type
The discovered OS type for the network device (for example, IOS).
Discovered OS Version
The discovered OS version for the network device (for example, 12.1).
Discovered OS Vendor
The vendor of the discovered OS (for example, Cisco).
The following table lists information fields that can be displayed in the Infrastructure group for a network device object.
Provides the following details for each network interface:
The name and IPv4 address of the network device. Click Show Details to see Netmask and Broadcast information.
The name and IPv6 address of the network device. Click Show Details to see Prefix information.
Fibre Channel Ports
Provides the following details for the device's fibre channel ports; for example, for a SAN Switch:
The following table lists information fields that can be displayed in the Inference group for a network device object.
Lists Discovery Accesses for the network device, grouped by scan date. When an endpoint is scanned, a Discovery Access node is created. The Discovery Access node records information such as the start time, end time, Discovery Run that the scan is part of, and previous Discovery Access to simplify troubleshooting. Clicking a Discovery Access displays the DiscoveryAccess page for that Discovery Access. Where a Discovery Access is about to be deleted as part of DDD aging, a trash can icon is displayed next to the Discovery Access.
Last successful CMDB sync
The time and date when the network device was last successfully synchronized into the CMDB.
Last failed CMDB sync
The time and date when the network device was last unsuccessfully synchronized into the CMDB.
CMDB sync duration
The time (in seconds) spent performing the last CMDB synchronization for the network device.
CMDB CI count
The number of CIs corresponding to the network device at the last CMDB synchronization.
CMDB Relationship count
The number of relationships to CIs corresponding to the network device at the last CMDB synchronization.
To view an imported network device
A network device object in BMC Discovery can also represent an imported switch.
Information fields for a typical imported network device
Name of the network device.
The following details are provided for each port on the network device: Port, Speed, Duplex, Negotiation, IP Address, Connected Host, and Description. This also highlights any performance affecting mismatches. For more information, see #Network device/host mismatch.
List of connected hosts. The following details are provided for each connected host: Name, Discovered OS, Hardware Vendor, Virtual (whether the host is a virtual host), Organisational Unit, Location, and Status.
Data Quality Issues
List of any missing fields.
To run network device reports
A number of context-sensitive reports are available for network devices. For more information and examples of these network device-related reports, see Switch Reports.
Network device and host mismatch
The View Object page of a network device displays attributes and relationships that are already set for that network device. In the Port Details row, it also displays information about the connection settings for the ports on the network device.
The Port Details row is divided into fields. Of these, the Speed, Duplex, and Negotiation fields reflect whether there is a performance affecting mismatch, or whether insufficient information is available to establish whether a mismatch exists.
If a mismatch is detected, or if information is missing so that the correct configuration cannot be confirmed, then the field is filled with a background color.
- Where a mismatch is detected, the field is filled with a red background.
- Where there is insufficient information to confirm the correct configuration, the field is filled with a yellow background.
You can view details of the mismatch or the missing data details by clicking the + symbol in a colored field. The details are displayed in a popup window.
Hyper-V Windows virtual machines (VMs) always report NIC speed as 10 GBps regardless of the actual speed. Consequently, for ports connected to Hyper-V Windows VMs, the network device and switch mismatch field show incorrect results.