How to identify high CPU, Packet Buffer, and Packet Descriptor in the firewall with Strata Cloud Manager
10825
Created On 08/25/22 03:15 AM - Last Modified 09/15/23 02:09 AM
Objective
- Identify the essential firewall resources needed to forward a data plane packet that Strata Cloud Manager monitors.
- Using the Strata Cloud Manager premium health alerts below, we will identify possible resource depletion
- Increased Traffic Latency - Packet Buffer
- Increased Traffic Latency - Packet Descriptor
- Increased Traffic Latency - Packet Descriptor (on-chip)
- Using the Strata Cloud Manager free health alert below, we will identify possible resource depletion
- Dataplane CPU Utilization
- Management Plane CPU Usage
Environment
- PAN-OS 10.0 and above
- Palo Alto Firewall connected to Strata Cloud Manager
- Strata Cloud Manager premium health alerts
- Strata Cloud Manager free health alerts
Procedure
1. Check Memory resources in Strata Cloud Manager GUI
- Go to Alerts > Health > Add Filter > Serial > Select Serial > check the appropriate Serial and verify if any of the following Alert Name is present:
- Increased Traffic Latency - Packet Buffer
- Increased Traffic Latency - Packet Descriptor
- Increased Traffic Latency - Packet Descriptor (on-chip)
If yes, click on the Alert Name and under RECOMMENDATIONS follow the solution provided.
2. Check CPU resources in Strata Cloud Manager GUI:
- Go to Monitor > Health > Grouped by: Model > click on the appropriate PA model > click on the appropriate Hostname > click on the Serial Number [highlighted in blue]
- Under Metric Name > click on Select Metric Name > type CPU > check Dataplane Average CPU Utilization
- Under Metrics for this Device > click on Dataplane Average CPU Utilization
- With the data/graph obtained, are there any spikes in the CPU that we can correlate with the issue?
- Repeat the above Steps, under 2.c., instead of using Dataplane CPU Utilization, use Management Plane CPU Usage.
Additional Information
Tips and Tricks: AIOps for NGFW
Which team to open a ticket to for AIOps-related issues?