Configuring instrumentation monitor

The following commands and parameters are used to configure the operational thresholds that are monitored on the switch. By default, the instrumentation monitor is disabled.

Syntax:

instrumentation monitor [parameterName|all] [<low|med|high|limitValue>]
no instrumentation monitor [parameterName|all] [<low|med|high|limitValue>]

[log]

Enables/disables instrumentation monitoring log so that event log messages are generated every time there is an event which exceeds a configured threshold. (Default threshold setting when instrumentation monitoring is enabled: enabled)

[all]

Enables/disables all counter types on the switch but does not enable/disable instrumentation monitor logging. (Default threshold setting when enabled: see parameter listings below)

[arp-requests]

The number of arp requests that are processed each minute. (Default threshold setting when enabled: 1000 med)

[ip-address-count]

The number of destination IP addresses learned in the IP forwarding table. (Default threshold setting when enabled: 1000 med)

[learn-discards]

The number of MAC address learn events per minute discarded to help free CPU resources when busy. (Default threshold setting when enabled: 100 med)

[login-failures]

The count of failed CLI login attempts or SNMP management authentication failures per hour. (Default threshold setting when enabled: 10 med)

[mac-address-count]

The number of MAC addresses learned in the forwarding table. You must enter a specific value in order to enable this feature. (Default threshold setting when enabled: 1000 med)

[mac-moves]

The average number of MAC address moves per minute from one port to another. (Default threshold setting when enabled: 100 med)

[pkts-to-closed-ports]

The count of packets per minute sent to closed TCP/UDP ports. (Default threshold setting when enabled: 10 med)

[port-auth-failures]

The count of times per minute that a client has been unsuccessful logging into the network. (Default threshold setting when enabled: 10 med)

[system-resource-usage]

The percentage of system resources in use. (Default threshold setting when enabled: 50 med)

<1–2147483647> – Set the threshold value

low – Low threshold

med – Medium threshold

high – High threshold

[system-delay]

The response time, in seconds, of the CPU to new network events such as BPDU packets or packets for other network protocols. (Default threshold setting when enabled: 3 seconds med)

[trap]

Enables or disables SNMP trap generation. (Default setting when instrumentation monitoring is enabled: disabled)

To enable instrumentation monitor using the default parameters and thresholds, enter the general instrumentation monitor command. To adjust specific settings, enter the name of the parameter that you wish to modify, and revise the threshold limits as needed.

Examples:

To turn on monitoring and event log messaging with the default medium values:

switch(config)# instrumentation monitor

To turn off monitoring of the system delay parameter:

switch(config)# no instrumentation monitor system-delay

To adjust the alert threshold for the MAC address count to the low value:

switch(config)# instrumentation monitor mac-address-count low

To adjust the alert threshold for the MAC address count to a specific value:

switch(config)# instrumentation monitor mac-address-count 767

To enable monitoring of learn discards with the default medium threshold value:

switch(config)# instrumentation monitor learn-discards

To disable monitoring of learn discards:

switch(config)# no instrumentation monitor learn-discards

To enable or disable SNMP trap generation:

switch(config)# no instrumentation monitor trap