- Index
- Preface
- Overview
- Using the Command-Line Interface
- Assigning the Switch IP Address and Default Gateway
- Configuring Cisco IOS Configuration Engine
- Administering the Switch
- Configuring Switch Alarms
- Configuring SDM Templates
- Configuring Switch-Based Authentication
- Configuring IEEE 802.1x Port-Based Authentication
- Configuring Interface Characteristics
- Configuring Command Macros
- Configuring VLANs
- Configuring Private VLANs
- Configuring IEEE 802.1Q and Layer 2 Protocol Tunneling
- Configuring STP
- Configuring MSTP
- Configuring Optional Spanning-Tree Features
- Configuring Resilient Ethernet Protocol
- Configuring Flex Links and the MAC Address-Table Move Update Feature
- Configuring DHCP Features and IP Source Guard
- Configuring Dynamic ARP Inspection
- Configuring IGMP Snooping and MVR
- Configuring Port-Based Traffic Control
- Configuring CDP
- Configuring LLDP and LLDP-MED
- Configuring UDLD
- Configuring SPAN and RSPAN
- Configuring RMON
- Configuring System Message Logging
- Configuring SNMP
- Configuring Embedded Event Manager
- Configuring Network Security with ACLs
- Configuring Control-Plane Security
- Configuring QoS
- Configuring EtherChannels and Link State Tracking
- Configuring IP Unicast Routing
- Configuring IPv6 Unicast Routing
- Configuring IPv6 MLD Snooping
- Configuring IPv6 ACLs
- Configuring HSRP
- Configuring Cisco IOS IP SLAs Operations
- Configuring Enhanced Object Tracking
- Configuring Ethernet OAM, CFM, and E-LMI
- Configuring IP Multicast Routing
- Configuring MSDP
- Troubleshooting
- Configuring Online Diagnostics
- Supported MIBs
- Working with the Cisco IOS File System, Configuration Files, and Software Images
- Unsupported Commands in Cisco IOS Release 12.2(52)SE
Configuring Online Diagnostics
This chapter describes how to configure the online diagnostics on the Cisco ME 3400E switch.

Note For complete syntax and usage information for the commands used in this chapter, see the command reference for this release.
•Understanding Online Diagnostics
•Configuring Online Diagnostics
•Running Online Diagnostic Tests
Understanding Online Diagnostics
With online diagnostics, you can test and verify the hardware functionality of the switch while the switch is connected to a live network. The online diagnostics contain packet switching tests that monitor different hardware components and verify the data path and the control signals.
The online diagnostics detect problems in these areas:
•Hardware components
•Interfaces (Ethernet ports and so forth)
•Solder joints
Table 47-1 lists the diagnostic test IDs and names. For information about test attributes, see the output from the show diagnostic content privileged EXEC command.
|
|
---|---|
1 |
TestPortAsicStackPortLoopback |
2 |
TestPortAsicLoopback |
3 |
TestPortAsicCam |
4 |
TestPortAsicRingLoopback |
5 |
TestMicRingLoopback |
6 |
TestPortAsicMem |
Online diagnostics are categorized as on-demand, scheduled, or health-monitoring diagnostics.
•On-demand diagnostics run from the CLI.
•Scheduled diagnostics run at user-designated intervals or at specified times when the switch is connected to a live network.
•Health-monitoring runs in the background.
Configuring Online Diagnostics
You must configure the failure threshold and the interval between tests before enabling diagnostic monitoring.
•Scheduling Online Diagnostics
•Configuring Health-Monitoring Diagnostics
Scheduling Online Diagnostics
You can schedule online diagnostics to run at a designated time of day or on a daily, weekly, or monthly basis. Use the no form of this command to remove the scheduling. For detailed information about this command, see the command reference for this release.
Beginning in privileged EXEC mode, follow these steps to schedule online diagnostics:
|
|
|
---|---|---|
Step 1 |
configure terminal |
Enter global configuration mode. |
Step 2 |
diagnostic schedule test {name | test-id | test-id-range | all | basic | non-disruptive} {daily hh:mm | on mm dd yyyy hh:mm | weekly day-of-week hh:mm} |
Schedule on-demand diagnostic tests for a specific day and time. When specifying the tests to be scheduled, use these options: • • • • • • You can schedule the tests for these time periods: • • • |
Step 3 |
show diagnostic {content | schedule} |
Verify the configured online diagnostic tests and schedule. • • |
Step 4 |
copy running-config startup-config |
(Optional) Save your entries in the configuration file. |
Use the no diagnostic schedule test {name | test-id | test-id-range | all | basic | non-disruptive} {daily hh:mm | on mm dd yyyy hh:mm | weekly day-of-week hh:mm} global configuration command to remove the scheduled tests.
This example shows how to schedule diagnostic testing for a specific day and time and verify the schedule:
Switch(config)# diagnostic schedule test 1 on Dec 4 2008 10:22
Switch(config)# end
Switch# show diagnostic schedule
Current Time = 10:21:24 UTC Thu Dec 4 2008
Diagnostic:
Schedule #1:
To be run on December 4 2008 10:22
Test ID(s) to be executed: 1.
At the scheduled time, the switch runs the test:
Switch# #
Dec 4 10:21:59.492: %DIAG-6-SCHED_RUNNING: : Performing Scheduled Online Diagnostic...
Dec 4 10:21:59.492: %DIAG-6-TEST_RUNNING: : Running TestPortAsicStackPortLoopback{ID=1} ..
Dec 4 10:22:00.498: %DIAG-6-TEST_OK: : TestPortAsicStackPortLoopback{ID=1} has completed successfully
Dec 4 10:22:00.498: %DIAG-6-SCHED_COMPLETE: : Scheduled Online Diagnostic is completed
For more examples, see the "Examples" section for the diagnostic schedule test command in the command reference for this release.
Configuring Health-Monitoring Diagnostics
You can configure health-monitoring diagnostic testing while a switch is connected to a live network. You can configure the execution interval for each health-monitoring test, enable the switch to generate a syslog message because of a test failure, and enable a specific test.
By default, health monitoring is disabled. When enabled, the switch generates a syslog message when a test fails.
Beginning in privileged EXEC mode, follow these steps to configure and enable the health-monitoring diagnostic tests:
|
|
|
---|---|---|
Step 1 |
configure terminal |
Enter global configuration mode. |
Step 2 |
diagnostic monitor interval test {name | test-id | test-id-range | all} hh:mm:ss milliseconds day |
Configure the health-monitoring interval of the specified tests. Specify the tests by using one of these parameters: • • • • When specifying the interval, set these parameters: • • • |
Step 3 |
diagnostic monitor syslog |
(Optional) Configure the switch to generate a syslog message when a health-monitoring test fails. |
Step 4 |
diagnostic monitor threshold test {name | test-id | test-id-range | all} failure count count |
(Optional) Set the failure threshold for the health-monitoring tests. Specify the tests by using one of these parameters: • • • • The range for the failure threshold count is 0 to 99. |
Step 5 |
diagnostic monitor test {name | test-id | test-id-range | all} |
Enable the specified health-monitoring tests. Specify the tests by using one of these parameters: • • • • |
Step 6 |
end |
Return to privileged EXEC mode. |
Step 7 |
show diagnostic {content | post | result | schedule | status | switch} |
Display the online diagnostic test results and the supported test suites. See the "Displaying Online Diagnostic Tests and Results" section for more information. |
Step 8 |
show running-config |
Verify your entries. |
Step 9 |
copy running-config startup-config |
(Optional) Save your entries in the configuration file. |
To disable diagnostic testing and return to the default settings, use these commands:
•To disable online diagnostic testing, use the no diagnostic monitor test {name | test-id | test-id-range | all} global configuration command.
•To return to the default health-monitoring interval, use the no diagnostic monitor interval test {name | test-id | test-id-range | all} global configuration command.
•To configure the switch to not generate a syslog message when the health-monitoring test fails, use the no diagnostic monitor syslog global configuration command.
•To return to the default failure threshold, use the no diagnostic monitor threshold test {name | test-id | test-id-range | all} failure count count global configuration command.
This example shows how to configure a health-monitoring test:
Switch(config)#
diagnostic monitor threshold test 1 failure count 50
Switch(config)# diagnostic monitor interval test TestPortAsicRingLoopback
Running Online Diagnostic Tests
After you configure online diagnostics, you can manually start diagnostic tests or display the test results. You can also see the tests configured for the switch and the tests that have already run.
•Starting Online Diagnostic Tests
•Displaying Online Diagnostic Tests and Results
Starting Online Diagnostic Tests
After you configure diagnostic tests to run on the switch, use the diagnostic start privileged EXEC command to begin diagnostic testing.

Note After starting the tests, you cannot stop the testing process.
|
|
---|---|
diagnostic start test {name | test-id | test-id-range | all | basic | non-disruptive} |
Start the diagnostic tests. Specify the tests by using one of these parameters: • • • • • • |
This example shows how to start a diagnostic test by using the test name:
Switch# diagnostic start test TestPortAsicRingLoopback
This example shows how to start a no-disruptive diagnostic test:
Switch# diagnostic start test non-disruptive
Switch#
*Mar 3 19:34:02.680: %DIAG-6-TEST_RUNNING: : Running TestPortAsicStackPortLoopback{ID=1} ..
*Mar 3 19:34:03.687: %DIAG-6-TEST_OK: : TestPortAsicStackPortLoopback{ID=1} has completed successfully
This example shows how to start all of the basic diagnostic tests:
Switch# diagnostic start test all
Displaying Online Diagnostic Tests and Results
You can display the configured online diagnostic tests and review the test results by using the privileged EXEC show commands in Table 47-2.
This is an example of the output from the show diagnostic result command:
Switch# show diagnostic result
: SerialNo : FOC1225U4CY
Overall diagnostic result: PASS
Test results: (. = Pass, F = Fail, U = Untested)
1) TestPortAsicStackPortLoopback ---> .
2) TestPortAsicLoopback ------------> U
3) TestPortAsicCam -----------------> U
4) TestPortAsicRingLoopback --------> U
5) TestMicRingLoopback -------------> U
6) TestPortAsicMem -----------------> U
This is an example of the output from the show diagnostic post command:
Switch# show diagnostic post
Stored system POST messages:
Switch 1
---------
POST: CPU MIC register Tests : Begin
POST: CPU MIC register Tests : End, Status Passed
POST: PortASIC Memory Tests : Begin
POST: PortASIC Memory Tests : End, Status Passed
POST: CPU MIC interface Loopback Tests : Begin
POST: CPU MIC interface Loopback Tests : End, Status Passed
POST: PortASIC RingLoopback Tests : Begin
POST: PortASIC RingLoopback Tests : End, Status Passed
POST: Thermal, Fan Tests : Begin
POST: Thermal, Fan Tests : End, Status Passed
POST: PortASIC CAM Subsystem Tests : Begin
POST: PortASIC CAM Subsystem Tests : End, Status Passed
POST: PortASIC Port Loopback Tests : Begin
POST: PortASIC Port Loopback Tests : End, Status Passed
POST: EMAC Loopback Tests : Begin
POST: EMAC Loopback Tests : End, Status Passed
For more examples of other show diagnostic command outputs, see the "Examples" section of the show diagnostic command in the command reference for this release.