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.
Note
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 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.
Note
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.
General details
The following table lists information fields that can be displayed in the General Details group for a network device.
Field name | Details |
|---|---|
Name | The name of the network device. If no name is discovered then this is the IP address of the device. |
Type | The type of the network device, such as Switch, Router, and so on. |
Vendor | The vendor of the network device. |
Model | The model name of the network device. |
Status | Whether the exact SNMP device has been tested by BMC. This can be either:
|
| Virtual | Yes if the device is virtual. |
| Containing VM | If the device is virtual, shows and links to the virtual machine containing the device. |
| Stack | Yes if the device is a stack device. If it is a stack device, stack members are listed under Infrastructure. |
| Stack Master | Yes if the device is a stack master. |
Identity
The following table lists information fields that can be displayed in the Identity group for a network device object.
Field name | Details |
|---|---|
Serial ID | The serial number of the network device. |
System Name | The |
System Object ID | The SNMP System Object ID of the network device. |
Operating System
The following table lists information fields that can be displayed in the Operating System group for a network device object.
Field name | Details |
|---|---|
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). |
Infrastructure
The following table lists information fields that can be displayed in the Infrastructure group for a network device object.
Field name | Details |
|---|---|
Network Interfaces | Provides the following details for each network interface:
|
Network Interfaces of the Stack Member | Applicable only for the stack member devices. Lists and provides links to the Network Interfaces of the stack device that are provided by this stack member. |
IPv4 Addresses | The name and IPv4 address of the network device. Click Show Details to see Netmask and Broadcast information. |
IPv6 Addresses | The name and IPv6 address of the network device. Click Show Details to see Prefix information. |
Network Device in Stack | If the device is a stack device, lists and provides links to the other members of the stack. |
Stack of Network Devices | If the device is a stack member, lists and provides link to the stack device. |
Fibre Channel Ports | Provides the following details for the device's fibre channel ports; for example, for a SAN Switch:
|
Inference
The following table lists information fields that can be displayed in the Inference group for a network device object.
Field name | Details |
|---|---|
Discovery Access | 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. |
CMDB Synchronization
Field name | Details |
|---|---|
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 | Name of the network device. |
Port Details | 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 and host mismatch. |
Connected Hosts | 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.
Note
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.
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