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Using Monitor Mode for Virtual Devices

 

The Monitor mode for virtual devices in your network enables you to view details about your virtual network using the following tabs:

  • Summary—Displays the status of the virtual network, virtual machine, or virtual switch, active alarms, and the number of hosts and the version of VMware ESXi that is running on each host.

  • vMotion History—vSphere vMotion is a feature that enables live migration of running virtual machines from one host to another with zero downtime and continuous network availability. You can view the status of the history of all the vMotions for your virtual network in the vMotion History tab. For more details, see Viewing vMotion History in Network Director.

Your current scope—that is, your view and node selection in the View pane—affects which Monitor widgets are available. For example, if you select a virtual switch, Network Director displays the status and the active alarms for the selected virtual switch.

This topic describes:

Current Active Alarms Monitor

The Current Active Alarms monitor shows any active alarm that has not yet been cleared. It is one of the four standard monitors available in Alarm mode. Current Active Alarms is a table that has four fields and appear by default. However, nine fields are available for selection. See Table 1 for a description of the table.

Table 1: Current Active Alarms Monitor

Table Column

Description

Shown in Summary by Default

Shown in Detailed View by Default

Name

The alarm name.

Yes

Yes

ID

A system and sequentially generated identification number.

No

No

Assigned To

If assigned to an individual, it shows the name of the person assigned; otherwise, it shows System to mark that the alarm is still unassigned.

No

Yes

Severity

The severity of the alarm. Severity levels are:

  • Critical—A critical condition exists; immediate action is necessary.

  • Major—A major error has occurred; escalate or notify as necessary.

  • Minor—A minor error has occurred; notify or monitor the condition.

  • Info—An informational message; no action is necessary.

Yes

Yes

Entity ID

The identification of the entity responsible for causing this alarm. The Entity ID is the key for correlation of events into an alarm. The Entity ID can be a MAC address of a radio or an IP address of the device.

Yes

Yes

Reporting Device IP

The IP address of the device or network element that generated the alarm. The SNMP agent is located at the source IP. In most cases, the source IP is the IP address of the switch or controller.

Yes

Yes

Reporting Device

The hostname or IP address of the reporting device.

Yes

Yes

Creation Date

The date and time the alarm was first reported.

No

No

Last Updated

The date and time that the information for the alarm was last modified.

Yes

Yes

Updated By

Either the system or the last user who modified the alarm.

No

No

Clicking the Details icon opens Alarm Details where you can sort and disposition alarms by state (Acknowledged, Clear, or Active).

Status Monitor

This monitor provides key information about the status for the virtual device selected in the Datacenter View. This monitor is on the Summary tab in Monitor mode.

Table 2 describes the fields in this monitor.

Table 2: Status Monitor Fields

Field

Function

Scope

Name

The hostname of the virtual device.

All

Hardware

The hardware platform that the host uses.

Host

Connection Status

The connection status of the host and the virtual machines.

Host

Hypervisor

The version of VMware ESXi that is installed on the host.

Host

Number of Virtual Switches

The number of virtual switches available for the selected scope.

Virtual Network, Host

Number of Virtual Machines

The number of virtual machines available for the selected scope.

All

Sync Status

Indicates whether the virtual network configuration is synchronized with Network Director.

Virtual Network

Orchestration Status

Displays the orchestration status of the virtual network.

Virtual Network

MTU

The maximum size of a protocol data unit that can be transmitted using the virtual switch.

Virtual Switch

Number of Port Groups

The number of port groups that are defined for the selected virtual switch. Port group is a template that stores a set of configuration that is used to create virtual switch ports on a virtual switch.

Virtual Switch

Hosts By % Bandwidth Utilization

The Hosts by % Bandwidth Utilization widget displays the hosts that use the maximum and minimum bandwidth in terms of percentage, for the selected context in the View pane. Click Top 5 in the filter list to see which hosts have the maximum bandwidth utilization in your virtual network. Likewise, you can click Bottom 5 in the filter list to see the hosts that have the minimum bandwidth utilization.

This widget is visible when you select the virtual network, a vCenter server, or the Hosts container from the View pane.

Click any host to view the virtual connectivity for the host. You can use the virtual connectivity view to monitor devices that the host is connected to, view connection between devices, and to view the bandwidth utilization at each device-level.

Top VMs By Bandwidth Utilization

The Top VMs By Bandwidth Utilization widget displays the virtual machines that are using up the maximum bandwidth for the selected context in the View pane. For instance, if you select the virtual network, this widget displays the top five virtual machines, from the entire virtual network, that are using the maximum bandwidth whereas if you select a host in the View pane, this widget displays the top five virtual machines that are part of the selected host.

This widget is visible when you select the virtual network, a vCenter server, or the Hosts container from the View pane.

Click any virtual machine to view the virtual connectivity for the virtual machine.

Host NIC Bandwidth Utilization

The Host NIC Bandwidth Utilization widget displays the percentage of bandwidth utilization for each physical NIC in a given host. Each bar in this bar chart represents a virtual NIC. You can mouse over each bar to see the name of the virtual NIC, percentage of bandwidth utilization, bandwidth that is currently used, and the bandwidth capacity of the virtual NIC.

This widget is visible when you select a host from the View pane.

Virtual Switch Summary By Version

The Virtual Switch Summary By Version displays the standard and distributed switch, and the software version that is installed on the switch, by using a pie chart. Mouse over a pie segment to view the actual number of devices and the percentage represented by that pie segment.

This widget is visible when you select the Virtual Switches container from the View pane.

Virtual Machine Bandwidth Utilization Trend

The Virtual Machine Bandwidth Utilization Trend page lists all the virtual machines that are part of the selected virtual network. For each virtual machine, you can view the graphical representation of the bandwidth utilization against time. You can use the Virtual Machine Bandwidth Utilization Trend to monitor traffic patterns, identify over utilized or under utilized virtual machines, and to optimize your virtual network.

This widget is visible when you select the Virtual Networks container or a Virtual Network from the View pane. If you access this widget after selecting the virtual networks container from the View pane, Network Director lists all the virtual machines in your virtual network spanning multiple vCenter servers, whereas selecting a virtual network from the View pane lists only those virtual machines that are part of the selected virtual network.