TCA Reporting of Denied Entries

You can construct a Threshold Crossing Alarm (TCA), which issues minor, major, and critical system alarms when the count of denied entries exceeds pre-configured values. For each issued alarm, the TCA also transmits an SNMP trap that reports the alarm state to remote SNMP agents.

After issuing a system alarm and accompanying SNMP trap, the TCA continues to monitor the number of denied entries. If the number of denied entries rises to the next threshold value, a new, and more severe, system alarm/SNMP trap is generated. If the number of denied entries falls below the current threshold level, and remains there for a period of at least 10 seconds, a new, and less severe system alarm/SNMP trap is generated.

Use the following command sequence to move to media-manager-config Configuration Mode.

ORACLE# configure terminal 
ORACLE(configure)# system 
ORACLE(system)# system-config 
ORACLE(system-config)# alarm-threshold 
ORACLE(alarm-threshold)#

Use the type attribute to specify the TCS type (deny-allocation for denied entries TCAs), the severity attribute to specify the criticality of the alarm, and the value attribute to specify the alarm threshold.

The following ACLI sequence defines the minor, major, and critical alarm thresholds. Not that you do not need to configure all three thresholds. Given the static deny allocation value of 32000 on an Acme Packet 4500, you can determine what the percentage value maps to.

ORACLE(alarm-threshold)# type deny-allocation 
ORACLE(alarm-threshold)# severity minor 
ORACLE(alarm-threshold)# value 80 
ORACLE(alarm-threshold)# done 
ORACLE(alarm-threshold)# type deny-allocation 
ORACLE(alarm-threshold)# severity major 
ORACLE(alarm-threshold)# value 90 
ORACLE(alarm-threshold)# done 
ORACLE(alarm-threshold)# type deny-allocation 
ORACLE(alarm-threshold)# severity critical 
ORACLE(alarm-threshold)# value 95 
ORACLE(alarm-threshold)# done

Use exit and verify-config to complete the configuration.