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21-98
Cisco MDS 9000 Family Command Reference
OL-8413-07, Cisco MDS SAN-OS Release 3.x
Chapter 21 S Commands
system health serdes-loopback
Examples The following example performs a Serdes loopback test within ports for an entire module.
switch# system health serdes-loopback interface fc 4/1
This will shut the requested interfaces Do you want to continue (y/n)? [n] y
Serdes loopback test on interface fc 4/1 was successful.
The following example performs a Serdes loopback test within ports for the entire module and overrides
the frame count configured on the switch.
switch# system health serdes-loopback interface fc 3/1 frame-count 10
This will shut the requested interfaces Do you want to continue (y/n)? [n] y
Serdes loopback test passed for module 3 port 1
Related Commands Command Description
system health Configures Online Health Management System (OHMS) features for a
specified interface or for the entire switch.
system health
external-loopback
Explicitly runs an external OHMS loopback test on demand for a specified
interface or module.
system health
internal-loopback
To explicitly run an internal OHMS loopback test on demand for a specified
interface or module.
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