Packet Processing Thresholds


Packet Processing Thresholds
 
 
Threshold monitoring can be enabled for the packet processing values described in the following table.
 
 
Saving Your Configuration
When you configure thresholds they are not permanent unless you save the changes. When you have completed configuring thresholds, save your configuration as described in the Verifying and Saving Your Configuration chapter.
 
Filtered/Dropped Packet Thresholds
Filtered/dropped packet thresholds generate alerts or alarms based on the total number of packets that were filtered or dropped by the system as a result of ACL rules during the specified polling interval.
Alerts or alarms are triggered for filtered/dropped packets based on the following rules:
Enter condition: Actual number of filtered/dropped packets > or = High Threshold
Clear condition: Actual number of filtered/dropped packets < Low Threshold
If a trigger condition occurs within the polling interval, the alert or alarm will not be generated until the end of the polling interval.
Important: These instructions assume that ACLs have been previously configured.
 
Configuring Filtered/Dropped Packet Thresholds
Use the following example to configure the filtered/dropped packet thresholds:
configure
  threshold packets-filtered-dropped <high_thresh> [ clear <low_thresh>]
  threshold poll packets-filtered-dropped interval <time>
  threshold monitoring packets-filtered-dropped
   end
 
Forwarded Packet Thresholds
Forwarded packet thresholds generate alerts or alarms based on the total number of packets that were forwarded to active system CPU(s) during the specified polling interval. Packets are forwarded to active system CPUs when the NPUs do not have adequate information to properly route them.
Important: Ping and/or traceroute packets are intentionally forwarded to system CPUs for processing. These packet types are included in the packet count for this threshold.
Alerts or alarms are triggered for forwarded packets based on the following rules:
Enter condition: Actual number of forwarded packets > or = High Threshold
Clear condition: Actual number of forwarded packets < Low Threshold
If a trigger condition occurs within the polling interval, the alert or alarm will not be generated until the end of the polling interval.
 
Configuring Forwarded Packet Thresholds
Use the following example to configure the forwarded packet thresholds:
configure
  threshold packets-forwarded-to-cpu <high_thresh> [ clear <low_thresh> ]
  threshold poll packets-forwarded-to-cpu interval <time>
  threshold monitoring packets-forwarded-to-cpu
   end
 
 

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