Investigating High Interface Utilization on 0:0 interface

Products

• SG-S500

Issue/Introduction

Interface utilization value for the 0:0 interface is at 70% and above, and all the other interfaces have very little or zero traffic utilization.

Resolution

Possible ways of resolving the issue with interface 0:0

1. Interface Utilization Monitoring:

• Regularly check traffic levels on the interface to ensure it doesn't approach maximum capacity. The 0:0 interface appears to be handling the bulk of the traffic, which is unusual, refer to High CPU usage and input errors on the TCP interface on Edge SWG

2. Recommended Network Traffic Segmentation:

• Management traffic should pass through the 0:0 interface.
• LAN traffic and WAN traffic should be assigned to separate, dedicated interfaces to avoid overloading.

3. Appliance-Specific Configuration:

• Ensure compliance with its recommended network interface design refer to Configure a Network Adapter

4. Verification Steps:

• Collect and provide the sysinfo file/snapshot and complete event log for detailed investigation (Uploading files to cases on the Broadcom Support Portal).