DELL S50V User Manual

E-Series TeraScale Debugging and Diagnostics | 1201

If a full set of SFMs are online during the runtime loopback test and a RPM-SFM runtime loopback test 
failure occurs, an automatic SFM walk is launched in an attempt to determine if the failure is due to a 
faulty SFM. If confirmed, the single SFM is identified and disabled (bringdown) by default. 

To disable the automatic bring-down of an SFM that is identified by the SFM walk during the RPM-SFM 
runtime loopback test, use the following CONFIGURATION mode command.

This manual dataplane loopback test is a supplemental test to the automatic runtime loopback test and can 
be initiated regardless if the runtime loopback test is enabled or disabled. Use this test to verify that the 
dataplane is actually functional even when a switch fabric status is down but there are at least (max-1) 
SFMs in active or diag failure state. 

Disable the automatic SFM walk that is 
launched after an RPM-SFM runtime 
loopback test failure.
To re-enable the automatic SFM walk, use 
the 

 command.

CONFIGURATION

Note: Disabling the 

 command prevents the 

 command from taking effect.

Disable the automatic bring down 
of the single faulty SFM identified 
by the SFM walk during the 
RPM-SFM runtime loopback test.
To re-enable the automatic bring 
down of an SFM, use the 

 command.

CONFIGURATION