8. vCloud Management and Monitoring Examples : 8.1 vCenter Operations Manager : 8.1.6 Network
   
8.1.6 Network
The Network Dashboard uses vCenter Operations Manager data collected from vCenter and from Hyperic. The Hyperic server uses SNMP to collect data from a Cisco 3550 switch.
The completed network dashboard widget is displayed in Figure 62, and is made from four widgets:
*Outbound/Inbound Packet Rate Metric Graph (Figure 63).
*Network Scoreboard (Figure 64).
*Physical NIC Heat Map (Figure 65).
*Network Performance Metric Graph (Figure 66).
Figure 62. Network Dashboard Widget
 
This example monitors port 48 on the switch for outbound and inbound packets. The metric graph displays these two metrics.
Metric
Unit
Cisco IOS Interface:Port48
Outbound packets per second
Cisco IOS Interface:Port48
Inbound packets per second
 
The completed widget appears as shown in Figure 63.
Figure 63. Outbound and Inbound Packet Rate Metric Graph
 
Using the Scoreboard Widget and some cluster wide statistics, the following widget can be created to show statistics on inbound packets per second network bandwidth usage and errors. This widget uses the following metrics:
Metric
Unit
Green Range
Yellow Range
Orange Range
Red Range
Net Cluster Usage
KBps
100
100–1000
1000–5000
5000
Net Cluster Demand
%
50
50–60
60–70
70
Net Cluster Workload
%
50
50–60
60–70
70
Net Max Throughput
Kbps
6000
6000–6500
6500–7000
7000
 
Note: These threshold/ranges are only examples. These values should be based on the cluster design threshold values and the customer requirements.
The completed widget appears as shown in Figure 64.
Figure 64. Completed Network Scoreboard Widget
 
A Heat Map widget can be used to display statistics for physical NIC usage in the ESXi host. The heat map settings for this widget are as shown in the following table.
Metric
Value
Refresh Widget Content
On
Widget Refresh Interval
300
Group by
Resource kind
Mode
Instance
Resource Kinds
Host systems
Attribute Kinds
Network | usage rate (KBps)
Tags to filter
Cluster compute resource | cluster
 
The completed heat map widget appears as shown in Figure 65.
Figure 65. Physical NIC Heat Map Widget
 
The Metric Graph widget can display historical network details regarding usage and errors. The Widget displays information on both the physical and virtual networking. The widget is configured with the following metrics:
Metric
Units
Network
Usage Rate (KBps)
Network:Physical
Packets Dropped
Network:Physical
Usage Rate (KBps)
Network:Virtual
Packets Dropped (%)
Network:Virtual
Usage Rate (KBps)
 
The Completed widget appears as shown in Figure 66.
Figure 66. Network Performance Metric Graph Widget