5 Load Balancer Switch

The F5 BIG-IP Load Balancer target exposes metrics that are available for monitoring and managing the Load Balancer Switch.

The metrics provide description, collection statistics, data source, multiple thresholds (where applicable), and user action information for each Load Balancer Switch metric.

5.1 IP Address Map

This metric lists the I.P. address and the corresponding host name of all the nodes.

5.1.1 Host Name

Represents the host name of the server.

Metric Summary

The following table shows how often the metric's value is collected.

Target Version	Collection Frequency
All Versions	Every 24 Hours

5.2 IP Interfaces

A table containing information about the system interfaces.

5.3 Nodes

A node is an individual service on a physical server, and consists of an IP address and a port number. The following table lists the metrics, their descriptions, and data sources.

Note:

For all target versions, the collection frequency for each metric is every 10 minutes.

Table 5-1 Nodes Metrics

Metric	Description	Data Source (SNMP MIB Object)
Host Name	Host name of the server	No applicable
Real Server Bits In Rate (Kb per second)	Count of bits read off the network for this member per second	Bitsin (.1.3.6.1.4.1.3375.1.1.104.2.1.9). Computed to get number of bits read per second
Real Server Bits Out Rate (Kb per second)	Count of bits written to the network for this member	Bitsout (.1.3.6.1.4.1.3375.1.1.104.2.1.10). Computed to get number of bits written per second
Real Server Connections (%)	Percentage of connections open on this server	Computed from virtualServerConnLimit (.1.3.6.1.4.1.3375.1.1.3.2.1.4) and virtualServerCurrentConn (.1.3.6.1.4.1.3375.1.1.3.2.1.17)
Real Server Connections per second	Number of connections per second open on this serve	Not applicable
Real Server Current Connections	Total number of connections this member has served per second	Computed from memberContot (1.3.6.1.4.1.3375.1.1.104.2.1.14)
Real Server Highest Connections	Maximum number of connections this pool member has had open at any one time.	poolMemberMaxConn (.1.3.6.1.4.1.3375.1.1.8.2.1.18)
Real Server Total Connections	Total number of connections this pool member have served since the pool member started	poolMemberTotalConn (.1.3.6.1.4.1.3375.1.1.8.2.1.20)

5.4 Physical Interfaces

Physical Interfaces metric for the Load Balancer Switch.

5.4.1 Physical Interface Bits In Rate (Kb per second)

Represents the Physical Interface bits in rate, in Kilobits per second, during the previous collection interval.

Metric Summary

The following table shows how often the metric's value is collected and compared against the default thresholds. The 'Consecutive Number of Occurrences Preceding Notification' column indicates the consecutive number of times the comparison against thresholds should hold TRUE before an alert is generated.

Table 5-2 Metric Summary Table

Target Version	Evaluation and Collection Frequency	Upload Frequency	Operator	Default Warning Threshold	Default Critical Threshold	Consecutive Number of Occurrences Preceding Notification	Alert Text
All Versions	Every 10 Minutes	After Every 3 Samples	>	Not Defined	Not Defined	1	Physical Interface %description% is currently receiving %value% Kilobits per second from the network, crossed warning (%warning_threshold%) or critical (%critical_threshold%) threshold.

Multiple Thresholds

For this metric you can set different warning and critical threshold values for each unique combination of "Physical Interface Index" and "Physical Interface Description" objects.

If warning or critical threshold values are currently set for any unique combination of "Physical Interface Index" and "Physical Interface Description" objects, those thresholds can be viewed on the Metric Detail page for this metric.

To specify or change warning or critical threshold values for each unique combination of "Physical Interface Index" and "Physical Interface Description" objects, use the Edit Thresholds page.

Data Source

Computed from SNMP MIB objects virtualServerOctetsInHi32 (.1.3.6.1.4.1.3375.1.1.3.2.1.24) and virtualServerOctetsIn (.1.3.6.1.4.1.3375.1.1.3.2.1.13)

5.4.2 Physical Interface Bits Out Rate (Kb per second)

Represents the Physical Interface bits out rate, in Kilobits per second, during the previous collection interval.

Metric Summary

Table 5-3 Metric Summary Table

Target Version	Evaluation and Collection Frequency	Upload Frequency	Operator	Default Warning Threshold	Default Critical Threshold	Consecutive Number of Occurrences Preceding Notification	Alert Text
All Versions	Every 10 Minutes	After Every 3 Samples	>	Not Defined	Not Defined	1	Physical Interface %description% is currently sending %value% Kilobits per second to the network, crossed warning (%warning_threshold%) or critical (%critical_threshold%) threshold.

Multiple Thresholds

For this metric you can set different warning and critical threshold values for each unique combination of "Physical Interface Index" and "Physical Interface Description" objects.

To specify or change warning or critical threshold values for each unique combination of "Physical Interface Index" and "Physical Interface Description" objects, use the Edit Thresholds page.

Data Source

Computed from SNMP MIB objects virtualServerOctetsOutHi32 (.1.3.6.1.4.1.3375.1.1.3.2.1.25) and virtualServerOctetsOut (.1.3.6.1.4.1.3375.1.1.3.2.1.14)

5.4.3 Physical Interface Status

Represents the current status of the Physical Interface (1:up; 2:down; 3:testing).

Metric Summary

Table 5-4 Metric Summary Table

Target Version	Evaluation and Collection Frequency	Upload Frequency	Operator	Default Warning Threshold	Default Critical Threshold	Consecutive Number of Occurrences Preceding Notification	Alert Text
All Versions	Every 10 Minutes	After Every 3 Samples	=	Not Defined	Not Defined	1	Physical Interface %description% is down

Multiple Thresholds

For this metric you can set different warning and critical threshold values for each unique combination of "Physical Interface Index" and "Physical Interface Description" objects.

To specify or change warning or critical threshold values for each unique combination of "Physical Interface Index" and "Physical Interface Description" objects, use the Edit Thresholds page.

Data Source

SNMP MIB object ifOperStatus (.1.3.6.1.2.1.2.2.1.8)

5.5 Response

This metric provides the status of the Load Balancer Switch, that is whether it is up or down.

5.5.1 Switch Status

Represents the status of Load Balancer Switch.

Metric Summary

Table 5-5 Metric Summary Table

Target Version	Evaluation and Collection Frequency	Upload Frequency	Operator	Default Warning Threshold	Default Critical Threshold	Consecutive Number of Occurrences Preceding Notification	Alert Text
All Versions	Every 5 Minutes	After Every 2 Samples	=	Not Defined	0	2	Load Balancer Switch is down

5.6 Server Group Members

Server Group Members (Real Servers) metric for Load Balancer Switch. The following table lists the metrics, their descriptions, and data sources.

Note:

For all target versions, the collection frequency for each metric is every 10 minutes.

Table 5-6 Server Group Members Metrics

Metric	Description	Data Source (SNMP MIB Object)
Host Name	Host name of the server	Not applicable
Real Server Address Status	See Section 5.6.1, "Real Server Address Status"	See Section 5.6.1, "Real Server Address Status"
Real Server Bits In Rate (Kb per second)	Real Server bits in rate, in Kilobits per second, during the previous collection interval	Bitsin (.1.3.6.1.4.1.3375.1.1.104.2.1.9). Computed to get number of bits read per second.
Real Server Bits Out Rate (Kb per second)	Real Server bits out rate, in Kilobits per second, during the previous collection interval	Bitsout (.1.3.6.1.4.1.3375.1.1.104.2.1.10). Computed to get number of bits written per second
Real Server Connections per second	Number of connections per second handled by the Real Server during the previous collection interval	Computed from memberContot (.1.3.6.1.4.1.3375.1.1.104.2.1.14)
Real Server Current Connections	Number of connections currently active on the Real Server	poolMemberCurrentConnn (.1.3.6.1.4.1.3375.1.1.8.2.1.19)
Real Server Highest Connections	Highest number of connections active on the Real Server at any time since the last restart of the Load Balancer Switch	poolMemberMaxConn (.1.3.6.1.4.1.3375.1.1.8.2.1.18)
Real Server Status (F5)	Section 5.6.2, "Real Server Status (F5)"	Section 5.6.2, "Real Server Status (F5)"
Real Server Total Connections	Represents the total number of connections the Real Server has served since the last restart of the Load Balancer Switch.	poolMemberTotalConn (.1.3.6.1.4.1.3375.1.1.8.2.1.20)

5.6.1 Real Server Address Status

Represents the status of the Real Server address.

Metric Summary

Table 5-7 Metric Summary Table

Target Version	Evaluation and Collection Frequency	Upload Frequency	Operator	Default Warning Threshold	Default Critical Threshold	Consecutive Number of Occurrences Preceding Notification	Alert Text
All Versions	Every 10 Minutes	After Every 3 Samples	=	Not Defined	10	1	Real Server address %address% belonging to Server Group %group_name% is down

Multiple Thresholds

For this metric you can set different warning and critical threshold values for each unique combination of "Real Server Group Name", "Real Server IP Address", and "Real Server Port" objects.

If warning or critical threshold values are currently set for any unique combination of "Real Server Group Name", "Real Server IP Address", and "Real Server Port" objects, those thresholds can be viewed on the Metric Detail page for this metric.

To specify or change warning or critical threshold values for each unique combination of "Real Server Group Name", "Real Server IP Address", and "Real Server Port" objects, use the Edit Thresholds page.

Data Source

SNMP MIB object memberStatus (1.3.6.1.4.1.3375.1.1.104.2.1.6)

5.6.2 Real Server Status (F5)

Represents the status of the Real Server. The status is determined by the result of the health check. If a health check is not defined for the Real Server, then Enterprise Manager tries to determine the status by opening a TCP connection to the Real Server. The following criteria is used to determine the status of the Real Server:

If the connection can be opened successfully in 3 seconds, then it marks the status as up.
If there is no response in 3 seconds, then it marks the status as unknown.
If the connection fails within 3 seconds, then it marks the status as down.

Metric Summary

Table 5-8 Metric Summary Table

Target Version	Evaluation and Collection Frequency	Upload Frequency	Operator	Default Warning Threshold	Default Critical Threshold	Consecutive Number of Occurrences Preceding Notification	Alert Text
All Versions	Every 10 Minutes	After Every 3 Samples	=	Not Defined	2	1	Real Server %address%:%port% belonging to Server Group %group_name% is down

Multiple Thresholds

For this metric you can set different warning and critical threshold values for each unique combination of "Real Server Group Name", "Real Server IP Address", and "Real Server Port" objects.

Data Source

SNMP MIB object poolMemberStatus (.1.3.6.1.4.1.3375.1.1.8.2.1.21)

5.7 Server Pools

Server Groups metric for Load Balancer Switch.

5.7.1 Server Group Bits In Rate (Kb per second)

Represents the Server Group bits in rate, in Kilobits per second, during the previous collection interval.

Metric Summary

Table 5-9 Metric Summary Table

Target Version	Evaluation and Collection Frequency	Upload Frequency	Operator	Default Warning Threshold	Default Critical Threshold	Consecutive Number of Occurrences Preceding Notification	Alert Text
All Versions	Every 10 Minutes	After Every 3 Samples	>	Not Defined	Not Defined	1	Server Group %name% is currently receiving %value% Kilobits per second from the network, crossed warning (%warning_threshold%) or critical (%critical_threshold%) threshold.

Multiple Thresholds

For this metric you can set different warning and critical threshold values for each "Server Group Name" object.

If warning or critical threshold values are currently set for any "Server Group Name" object, those thresholds can be viewed on the Metric Detail page for this metric.

To specify or change warning or critical threshold values for each "Server Group Name" object, use the Edit Thresholds page.

Data Source

Computed from SNMP MIB objects globalStatBitsinHi32 (.1.3.6.1.4.1.3375.1.1.1.2.3) and globalStatBitsin (.1.3.6.1.4.1.3375.1.1.1.2.2)

5.7.2 Server Group Bits Out Rate (Kb per second)

Represents the Server Group bits out rate, in Kilobits per second, during the previous collection interval.

Metric Summary

Table 5-10 Metric Summary Table

Target Version	Evaluation and Collection Frequency	Upload Frequency	Operator	Default Warning Threshold	Default Critical Threshold	Consecutive Number of Occurrences Preceding Notification	Alert Text
All Versions	Every 10 Minutes	After Every 3 Samples	>	Not Defined	Not Defined	1	Server Group %name% is currently sending %value% Kilobits per second to the network, crossed warning (%warning_threshold%) or critical (%critical_threshold%) threshold.

Multiple Thresholds

For this metric you can set different warning and critical threshold values for each "Server Group Name" object.

If warning or critical threshold values are currently set for any "Server Group Name" object, those thresholds can be viewed on the Metric Detail page for this metric.

To specify or change warning or critical threshold values for each "Server Group Name" object, use the Edit Thresholds page.

Data Source

Computed from SNMP MIB objects globalStatBitsoutHi32 (.1.3.6.1.4.1.3375.1.1.1.2.5) and globalStatBitsout (.1.3.6.1.4.1.3375.1.1.1.2.4)

5.7.3 Server Group Connections per second (F5)

Represents the number of connections per second handled by the Server Group during the previous collection interval.

Metric Summary

Table 5-11 Metric Summary Table

Target Version	Evaluation and Collection Frequency	Upload Frequency	Operator	Default Warning Threshold	Default Critical Threshold	Consecutive Number of Occurrences Preceding Notification	Alert Text
All Versions	Every 10 Minutes	After Every 3 Samples	>	Not Defined	Not Defined	1	Server Group %name% is currently serving %value% connections per second, crossed warning (%warning_threshold%) or critical (%critical_threshold%) threshold.

Multiple Thresholds

For this metric you can set different warning and critical threshold values for each "Server Group Name" object.

If warning or critical threshold values are currently set for any "Server Group Name" object, those thresholds can be viewed on the Metric Detail page for this metric.

To specify or change warning or critical threshold values for each "Server Group Name" object, use the Edit Thresholds page.

Data Source

Computed from SNMP MIB object poolTotalConn (.1.3.6.1.4.1.3375.1.1.7.2.1.15)

5.7.4 Server Group Current Connections (F5)

Represents the number of connections currently active on the Server Group.

Metric Summary

Table 5-12 Metric Summary Table

Target Version	Evaluation and Collection Frequency	Upload Frequency	Operator	Default Warning Threshold	Default Critical Threshold	Consecutive Number of Occurrences Preceding Notification	Alert Text
All Versions	Every 10 Minutes	After Every 3 Samples	>	Not Defined	Not Defined	1	Server Group %name% currently has %value% open connections, crossed warning (%warning_threshold%) or critical (%critical_threshold%) threshold.

Multiple Thresholds

For this metric you can set different warning and critical threshold values for each "Server Group Name" object.

If warning or critical threshold values are currently set for any "Server Group Name" object, those thresholds can be viewed on the Metric Detail page for this metric.

To specify or change warning or critical threshold values for each "Server Group Name" object, use the Edit Thresholds page.

Data Source

Computed from SNMP MIB object poolCurrentConn (.1.3.6.1.4.1.3375.1.1.7.2.1.14)

5.7.5 Server Group Highest Connections

Represents the highest number of connections that were active on the Server Group at any time since the last restart of the Load Balancer Switch.

Metric Summary

The following table shows how often the metric's value is collected.

Target Version	Collection Frequency
All Versions	Every 10 Minutes

Data Source

Computed from SNMP MIB object poolMaxConn (.1.3.6.1.4.1.3375.1.1.7.2.1.13)

5.7.6 Server Group Total Connections

Represents the total number of connections the Server Group has served since the last restart of the Load Balancer Switch.

Metric Summary

The following table shows how often the metric's value is collected.

Target Version	Collection Frequency
All Versions	Every 10 Minutes

Data Source

Computed from SNMP MIB object poolTotalConn (.1.3.6.1.4.1.3375.1.1.7.2.1.15)

5.8 Switch

Switch metric for Load Balancer Switch.

5.8.1 BitsIn Rate (Kbps)

Represents the Switch Bits in rate, in Kilobits per second, during the previous collection interval.

Metric Summary

Table 5-13 Metric Summary Table

Target Version	Evaluation and Collection Frequency	Upload Frequency	Operator	Default Warning Threshold	Default Critical Threshold	Consecutive Number of Occurrences Preceding Notification	Alert Text
All Versions	Every 10 Minutes	After Every Sample	>	Not Defined	Not Defined	1	Load Balancer Switch is currently receiving %value% Kilobits per second from the network, crossed warning (%warning_threshold%) or critical (%critical_threshold%) threshold.

Data Source

Computed from SNMP MIB objects globalStatBitsinHi32 (.1.3.6.1.4.1.3375.1.1.1.2.3) and globalStatBitsin (.1.3.6.1.4.1.3375.1.1.1.2.2)

5.8.2 BitsOut Rate (Kbps)

Represents the Switch Bits out rate, in Kilobits per second, during the previous collection interval.

Metric Summary

Table 5-14 Metric Summary Table

Target Version	Evaluation and Collection Frequency	Upload Frequency	Operator	Default Warning Threshold	Default Critical Threshold	Consecutive Number of Occurrences Preceding Notification	Alert Text
All Versions	Every 10 Minutes	After Every Sample	>	Not Defined	Not Defined	1	Load Balancer Switch is currently sending %value% Kilobits per second to the network, crossed warning (%warning_threshold%) or critical (%critical_threshold%) threshold.

Data Source

Computed from SNMP MIB objects globalStatBitsoutHi32 (.1.3.6.1.4.1.3375.1.1.1.2.5) and globalStatBitsout (.1.3.6.1.4.1.3375.1.1.1.2.4)

5.8.3 CPU Utilization (%)

Represents the percentage of the total CPU utilization of the Load Balancer Switch.

Metric Summary

Table 5-15 Metric Summary Table

Target Version	Evaluation and Collection Frequency	Upload Frequency	Operator	Default Warning Threshold	Default Critical Threshold	Consecutive Number of Occurrences Preceding Notification	Alert Text
All Versions	Every 10 Minutes	After Every Sample	>	Not Defined	Not Defined	1	CPU Utilization percentage of Load Balancer Switch is %value%%% , crossed warning (%warning_threshold%%%) or critical (%critical_threshold%%%) threshold.

Data Source

Computed using 1.3.6.1.4.1.2021.11.11.0 (cpu idle percentage, UCD mib) as (100 - cpu idle percentage) %

5.8.4 Current Connections

Represents the number of connections currently active on the Load Balancer Switch.

Metric Summary

Table 5-16 Metric Summary Table

Target Version	Evaluation and Collection Frequency	Upload Frequency	Operator	Default Warning Threshold	Default Critical Threshold	Consecutive Number of Occurrences Preceding Notification	Alert Text
All Versions	Every 10 Minutes	After Every Sample	>	Not Defined	Not Defined	1	Load Balancer Switch currently has %value% open connections, crossed warning (%warning_threshold%) or critical (%critical_threshold%) threshold.

Data Source

SNMP MIB object globalStatCurrentConn (.1.3.6.1.4.1.3375.1.1.1.2.10)

5.8.5 Highest Connections

Represents the highest number of connections that were active on the Load Balancer Switch at any time since the last restart of the Load Balancer Switch.

Metric Summary

The following table shows how often the metric's value is collected.

Target Version	Collection Frequency
All Versions	Every 10 Minutes

Data Source

SNMP MIB object globalStatMaxConn (.1.3.6.1.4.1.3375.1.1.1.2.11)

5.8.6 MemoryUtilization %

Represents the percentage of the total memory utilization of the Load Balancer Switch.

Metric Summary

Table 5-17 Metric Summary Table

Target Version	Evaluation and Collection Frequency	Upload Frequency	Operator	Default Warning Threshold	Default Critical Threshold	Consecutive Number of Occurrences Preceding Notification	Alert Text
All Versions	Every 10 Minutes	After Every Sample	>	Not Defined	Not Defined	1	Memory utilization of Load Balancer Switch is %value%%% , crossed warning (%warning_threshold%%%) or critical (%critical_threshold%%%) threshold.

Data Source

Computed from SNMP MIB objects memoryUsed (.1.3.6.1.4.1.3375.1.1.77) and memoryTotal (.1.3.6.1.4.1.3375.1.1.78)

5.8.7 MemUsedbyKrnl bytes

Represents memory, in bytes, used by the Load Balancer Switch kernel.

Metric Summary

The following table shows how often the metric's value is collected.

Target Version	Collection Frequency
All Versions	Every 10 Minutes

Data Source

SNMP MIB object memoryUsed (.1.3.6.1.4.1.3375.1.1.77)

5.8.8 Switch Conns/sec

Represents the number of switch connections per second handled by the Load Balancer Switch during the previous collection interval.

Metric Summary

Table 5-18 Metric Summary Table

Target Version	Evaluation and Collection Frequency	Upload Frequency	Operator	Default Warning Threshold	Default Critical Threshold	Consecutive Number of Occurrences Preceding Notification	Alert Text
All Versions	Every 10 Minutes	After Every Sample	>	Not Defined	Not Defined	1	Load Balancer Switch is currently serving %value% connections per second, crossed warning (%warning_threshold%) or critical (%critical_threshold%) threshold.

Data Source

Computed from SNMP MIB object globalStatTotalConn (.1.3.6.1.4.1.3375.1.1.1.2.12)

5.8.9 Switch FailoverState

Represents the failover state of the Load Balancer Switch. A value of 1 means Active, and a value of 2 means Standby.

Metric Summary

The following table shows how often the metric's value is collected.

Target Version	Collection Frequency
All Versions	Every 10 Minutes

Data Source

SNMP MIB object globalAttrMaster (.1.3.6.1.4.1.3375.1.1.1.1.12)

5.8.10 Total Connections

Represents the total number of connections the Load Balancer Switch has served since the last restart of the Load Balancer Switch.

Metric Summary

The following table shows how often the metric's value is collected.

Target Version	Collection Frequency
All Versions	Every 10 Minutes

Data Source

SNMP MIB object globalStatTotalConn (.1.3.6.1.4.1.3375.1.1.1.2.12)

5.9 Virtual Servers

Virtual Servers metric for Load Balancer Switch.

5.9.1 Host Name

Represents the host name of the server.

Metric Summary

The following table shows how often the metric's value is collected.

Target Version	Collection Frequency
All Versions	Every 10 Minutes

5.9.2 Virtual Server Bits In Rate (Kb per second)

Represents the Virtual Server bits in rate, in Kilobits per second, during the previous collection interval.

Metric Summary

Table 5-19 Metric Summary Table

Target Version	Evaluation and Collection Frequency	Upload Frequency	Operator	Default Warning Threshold	Default Critical Threshold	Consecutive Number of Occurrences Preceding Notification	Alert Text
All Versions	Every 10 Minutes	After Every 3 Samples	>	Not Defined	Not Defined	1	Virtual Server %address%:%port% is currently receiving %value% Kilobits per second from the network, crossed warning (%warning_threshold%) or critical (%critical_threshold%) threshold.

Multiple Thresholds

For this metric you can set different warning and critical threshold values for each unique combination of "Virtual Server IP Address" and "Virtual Server Port" objects.

If warning or critical threshold values are currently set for any unique combination of "Virtual Server IP Address" and "Virtual Server Port" objects, those thresholds can be viewed on the Metric Detail page for this metric.

To specify or change warning or critical threshold values for each unique combination of "Virtual Server IP Address" and "Virtual Server Port" objects, use the Edit Thresholds page.

Data Source

Computed from SNMP MIB objects virtualServerOctetsInHi32 (.1.3.6.1.4.1.3375.1.1.3.2.1.24) and virtualServerOctetsIn (.1.3.6.1.4.1.3375.1.1.3.2.1.13)

5.9.3 Virtual Server Bits Out Rate (Kb per second)

Represents the Virtual Server bits out rate, in Kilobits per second, during the previous collection interval.

Metric Summary

Table 5-20 Metric Summary Table

Target Version	Evaluation and Collection Frequency	Upload Frequency	Operator	Default Warning Threshold	Default Critical Threshold	Consecutive Number of Occurrences Preceding Notification	Alert Text
All Versions	Every 10 Minutes	After Every 3 Samples	>	Not Defined	Not Defined	1	Virtual Server %address%:%port% is currently sending %value% Kilobits per second to the network, crossed warning (%warning_threshold%) or critical (%critical_threshold%) threshold.

Multiple Thresholds

For this metric you can set different warning and critical threshold values for each unique combination of "Virtual Server IP Address" and "Virtual Server Port" objects.

To specify or change warning or critical threshold values for each unique combination of "Virtual Server IP Address" and "Virtual Server Port" objects, use the Edit Thresholds page.

Data Source

Computed from SNMP MIB objects virtualServerOctetsOutHi32 (.1.3.6.1.4.1.3375.1.1.3.2.1.25) and virtualServerOctetsOut (.1.3.6.1.4.1.3375.1.1.3.2.1.14)

5.9.4 Virtual Server connections (%)

Represents the number of current connections on the Virtual Server as a percentage of the connection limit.

Metric Summary

Table 5-21 Metric Summary Table

Target Version	Evaluation and Collection Frequency	Upload Frequency	Operator	Default Warning Threshold	Default Critical Threshold	Consecutive Number of Occurrences Preceding Notification	Alert Text
All Versions	Every 10 Minutes	After Every 3 Samples	>	Not Defined	Not Defined	1	Virtual Server %address%:%port% has reached %value%%% of permissible connection limit, crossed warning (%warning_threshold%) or critical (%critical_threshold%) threshold.

Multiple Thresholds

For this metric you can set different warning and critical threshold values for each unique combination of "Virtual Server IP Address" and "Virtual Server Port" objects.

To specify or change warning or critical threshold values for each unique combination of "Virtual Server IP Address" and "Virtual Server Port" objects, use the Edit Thresholds page.

Data Source

Computed from SNMP MIB object virtualServerCurrentConn (.1.3.6.1.4.1.3375.1.1.3.2.1.17) and virtualServerConnLimit (.1.3.6.1.4.1.3375.1.1.3.2.1.4)

5.9.5 Virtual Server Connections per second

Represents the number of connections per second handled by the Virtual Server during the previous collection interval.

Metric Summary

Table 5-22 Metric Summary Table

Target Version	Evaluation and Collection Frequency	Upload Frequency	Operator	Default Warning Threshold	Default Critical Threshold	Consecutive Number of Occurrences Preceding Notification	Alert Text
All Versions	Every 10 Minutes	After Every 3 Samples	>	Not Defined	Not Defined	1	Virtual Server %address%:%port% is currently serving %value% connections per second, crossed warning (%warning_threshold%) or critical (%critical_threshold%) threshold.

Multiple Thresholds

For this metric you can set different warning and critical threshold values for each unique combination of "Virtual Server IP Address" and "Virtual Server Port" objects.

To specify or change warning or critical threshold values for each unique combination of "Virtual Server IP Address" and "Virtual Server Port" objects, use the Edit Thresholds page.

Data Source

Computed from SNMP MIB object virtualServerTotalConn (.1.3.6.1.4.1.3375.1.1.3.2.1.19)

5.9.6 Virtual Server Current Connections

Represents the number of connections currently active on the Virtual Server.

Metric Summary

Table 5-23 Metric Summary Table

Target Version	Evaluation and Collection Frequency	Upload Frequency	Operator	Default Warning Threshold	Default Critical Threshold	Consecutive Number of Occurrences Preceding Notification	Alert Text
All Versions	Every 10 Minutes	After Every 3 Samples	>	Not Defined	Not Defined	1	Virtual Server %address%:%port% currently has %value% open connections, crossed warning (%warning_threshold%) or critical (%critical_threshold%) threshold.

Multiple Thresholds

For this metric you can set different warning and critical threshold values for each unique combination of "Virtual Server IP Address" and "Virtual Server Port" objects.

To specify or change warning or critical threshold values for each unique combination of "Virtual Server IP Address" and "Virtual Server Port" objects, use the Edit Thresholds page.

Data Source

SNMP MIB object virtualServerCurrentConn (.1.3.6.1.4.1.3375.1.1.3.2.1.17)

5.9.7 Virtual Server Highest Connections

Represents the highest number of connections active on the Virtual Server since the last restart of the Load Balancer Switch.

Metric Summary

The following table shows how often the metric's value is collected.

Target Version	Collection Frequency
All Versions	Every 10 Minutes

Data Source

SNMP MIB object virtualServerMaxConn (.1.3.6.1.4.1.3375.1.1.3.2.1.18)

5.9.8 Virtual Server Status

Represents the status of the Virtual Server. The status is determined by the result of the health check on Real Servers that belong to the Virtual Server. If the status of all the Real Servers is down, then the Virtual Server status is also marked as down. If a health check is not defined for the Real Servers, then Enterprise Manager tries to determine the status by opening a TCP connection to the Virtual Server. The following criteria is used to determine the status of the Virtual Server:

If the connection can be opened successfully in 3 seconds, then it marks the status as up.
If there is no response in 3 seconds, then it marks the status as unknown.
If the connection fails within 3 seconds, then it marks the status as down.

Metric Summary

Table 5-24 Metric Summary Table

Target Version	Evaluation and Collection Frequency	Upload Frequency	Operator	Default Warning Threshold	Default Critical Threshold	Consecutive Number of Occurrences Preceding Notification	Alert Text
All Versions	Every 10 Minutes	After Every 3 Samples	=	Not Defined	3	1	Virtual Server %address%:%port% is down

Multiple Thresholds

For this metric you can set different warning and critical threshold values for each unique combination of "Virtual Server IP Address" and "Virtual Server Port" objects.

To specify or change warning or critical threshold values for each unique combination of "Virtual Server IP Address" and "Virtual Server Port" objects, use the Edit Thresholds page.

Data Source

SNMP MIB object virtualServerStatus (.1.3.6.1.4.1.3375.1.1.3.2.1.3)

5.9.9 Virtual Server Total Connections

Represents the total number of connections the Virtual Server served since the last restart of the Load Balancer Switch.

Metric Summary

The following table shows how often the metric's value is collected.

Target Version	Collection Frequency
All Versions	Every 10 Minutes

Data Source

SNMP MIB object virtualServerTotalConn (.1.3.6.1.4.1.3375.1.1.3.2.1.19)