Reference Guide

1536 | E-Series Debugging and Diagnostics

www.dell.com | support.dell.com

• show tech-support

In addition to these debug commands, FTOS supports diagnostics, monitoring, and fault isolation

commands to assist in gathering information.

Important Points to Remember

• Unless otherwise noted, these commands are available on TeraScale systems only.

• The trace-log file captures failure information on most failure events.

• The RPM-SFM runtime loopback test failure initiates an SFM walk. The system automatically

places each SFM (in sequential order) in an offline state, runs the loopback test, and then places

the SFM back in an active state. This continues until the system determines a working SFM

combination. If no working combination is found, the system restores to the pre-walking SFM

state

• If the line card runtime loopback test fails, the system does not launch an SFM walk.

dataplane-diag disable loopback

Disable the runtime loopback test on the primary RPM and line cards.

Syntax

dataplane-diag disable loopback

To re-enable, use the no dataplane-diag disable loopback command.

Defaults

Enabled

Command Modes

CONFIGURATION

Command

History

Commands

Note: SFM walking assumes a chassis with the maximum number of SFMs in an active state.

Version 6.5.4.0 Introduced

show diag sfm Display the loopback test results

dataplane-diag disable sfm-bringdown Disable the automatic SFM bringdown

dataplane-diag disable sfm-walk Diable the automatic SFM walk