10s_received_packets_storm.md 1.5 KB

Understand the alert

This alert is triggered when there is a significant increase in the number of received packets within a 10-second interval. It indicates a potential packet storm, which may cause network congestion, dropped packets, and reduced performance.

Troubleshoot the alert

  1. Check network utilization: Monitor network utilization on the affected interface to identify potential bottlenecks, high bandwidth usage, or network saturation.

  2. Identify the source: Determine the source of the increased packet rate. This may be caused by a misconfigured application, a faulty network device, or a Denial of Service (DoS) attack.

  3. Inspect network devices: Check network devices such as routers, switches, and firewalls for potential issues, misconfigurations, or firmware updates that may resolve the problem.

  4. Verify application behavior: Ensure that the applications running on your network are behaving as expected and not generating excessive traffic.

  5. Implement rate limiting: If the packet storm is caused by a specific application or service, consider implementing rate limiting to control the number of packets being sent.

  6. Monitor network security: Check for signs of a DoS attack or other security threats, and take appropriate action to mitigate the risk.

Useful resources

  1. Wireshark User's Guide
  2. Tcpdump Manual Page
  3. Iperf - Network Bandwidth Measurement Tool