- Configuring the NetScaler to Generate SNMP Traps
- Configuring the NetScaler for SNMP v1 and v2 Queries
- Configuring the NetScaler for SNMPv3 Queries
- Configuring SNMP Alarms for Rate Limiting
Citrix NetScaler appliances such as the NetScaler MPX 10500, 12500, and 15500 are rate limited. The maximum throughput (Mbps) and packets per second (PPS) are determined by the license purchased for the appliance. For rate-limited platforms, you can configure SNMP traps to send notifications when throughput and PPS approach their limits and when they return to normal.
Throughput and PPS are monitored every seven seconds. You can configure traps with high-threshold and normal-threshold values, which are expressed as a percentage of the licensed limits. The appliance then generates a trap when throughput or PPS exceeds the high threshold, and a second trap when the monitored parameter falls to the normal threshold. In addition to sending the traps to the configured destination device, the NetScaler logs the events associated with the traps in the /var/log/ns.log file as EVENT ALERTSTARTED and EVENT ALERTENDED.
Exceeding the throughput limit can result in packet loss. You can configure SNMP alarms to report packet loss.
For more information about SNMP alarms and traps, see "Configuring the NetScaler to generate SNMP v1 and v2 Traps."
> set snmp alarm PF-RL-RATE-THRESHOLD -thresholdValue 70 -normalValue 50
> set snmp alarm PF-RL-PPS-THRESHOLD -thresholdValue 70 -normalValue 50
set snmp alarm PF-RL-RATE-PKTS-DROPPED [-state (ENABLED | DISABLED)] [-severity <severity>] [-logging ( ENABLED | DISABLED )]
set snmp alarm PF-RL-PPS-PKTS-DROPPED [-state (ENABLED | DISABLED)] [-severity <severity>] [-logging ( ENABLED | DISABLED )]