Cisco MDS 9000 Series Command Reference

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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.

Cisco MDS 9000 Series Specifications

General

Category	Switch
Operating System	Cisco NX-OS
Ports	Varies by model
Protocols	Fibre Channel (FC), Fibre Channel over IP (FCIP), iSCSI
Redundancy	Redundant supervisors, power supplies, and fans
Management	Cisco Data Center Network Manager (DCNM), CLI, SNMP
Virtualization Support	VSANs (Virtual SANs)
Security Features	Fibre Channel Security Protocol (FC-SP)
Hot Swappable Components	power supplies, fans
Power Supply Options	AC and DC options available