Users Guide

Debugging and Diagnostics

This chapter contains the following sections:.

• Debugging Aggregator Operation

• Software Show Commands

• Oine Diagnostics

• Trace Logs

• Show Hardware Commands

Supported Modes

Standalone, PMUX, VLT

Topics:

• Debugging Aggregator Operation

• Software show Commands

• Oine Diagnostics

• Trace Logs

• Using the Show Hardware Commands

• Environmental Monitoring

• Buer Tuning

• Troubleshooting Packet Loss

• Enabling Buer Statistics Tracking

• Restoring the Factory Default Settings

Debugging Aggregator Operation

This section describes common troubleshooting procedures to use for error conditions that may arise during Aggregator operation.

All interfaces on the Aggregator are operationally down

This section describes how you can troubleshoot the scenario in which all the interfaces are down.

Symptom: All Aggregator interfaces are down.

Resolution: Ensure the port channel 128 is up and that the Aggregator-facing port channel on the top-of-rack switch is correctly

congured.

Steps to Take:

1 Verify that uplink port-channel 128 is up (show interfaces port-channel 128 brief command) and display the status of member ports

(show uplink-state-group 1 detail command).

Dell#show interfaces port-channel 128 brief

Codes: L - LACP Port-channel

LAG Mode Status Uptime Ports

298 Debugging and Diagnostics