Cisco IOS XE: Настройка онлайн-диагностики - руководство пользователя (EN)

Information About Configuring Online Diagnostics

Configuring Online Diagnostics Information About Configuring Online Diagnostics, on page 1 How to Configure Online Diagnostics, on page 6 Monitoring and Maintaining Online Diagnostics, on page 11 Configuration Examples for Online Diagnostics, on page 11 Additional References for Online Diagnostics, on page 13 Feature History for Configuring Online Diagnostics, on page 13 Information About Configuring Online Diagnostics With online diagnostics, you can test and verify the hardware functionality of a device while the device is connected to a live network. Online diagnostics contains packet-switching tests that check different hardware components and verify the data path and control signals.

Online diagnostics detects problems in these areas: • Hardware components • Interfaces (Ethernet ports and so forth) • Solder joints 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 device is connected to a live network; and health-monitoring runs in the background with user-defined intervals. The health-monitoring test runs every 90, 100, or 150 seconds based on the test. After you configure online diagnostics, you can manually start diagnostic tests or display the test results.

You can also see which tests are configured for the device and the diagnostic tests that have already run. Configuring Online Diagnostics 1

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Generic Online Diagnostics (GOLD) Tests

Generic Online Diagnostics (GOLD) Tests Note • Before you enable online diagnostics tests, enable console logging to see all the warning messages. • While tests are running, all the ports are shut down because a stress test is being performed with looping ports internally, and external traffic might affect the test results. Reboot the switch to bring it to normal operation. When you run the command to reload a switch, the system will ask you if the configuration should be saved. Do not save the configuration. • If you are running tests on other modules, after a test is initiated and complete, you must reset the module. The following sections provide information about GOLD tests.

DiagGoldPktTest This GOLD packet loopback test verifies the MAC-level loopback functionality. In this test, a GOLD packet is sent, for which Unified Access Data Plane (UADP) ASIC provides support in the hardware. The packet loops back at the MAC-level and is matched against the stored packet. DiagThermalTest This test verifies the temperature reading from a device sensor. Configuring Online Diagnostics Generic Online Diagnostics (GOLD) Tests Attribute Description Disruptive or Nondisruptive Nondisruptive. Recommendation Run this on-demand test as per requirement. Default Off. Intitial release Cisco IOS XE Everest 16.6.1. Corrective action – Hardware support Supervisors.

Attribute Description Disruptive or Nondisruptive Nondisruptive Recommendation Do not disable. Run this as an on-demand test, and as a health-monitoring test if the administrator is down. Default On. Intitial release Cisco IOS XE Everest 16.6.1. Corrective action – Hardware support Supervisors. Configuring Online Diagnostics 2

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Generic Online Diagnostics (GOLD) Tests

DiagFanTest This test verifies if all the fan modules that have been inserted are working properly on the board. DiagPhyLoopbackTest This PHY loopback test verifies the PHY-level loopback functionality. In this test, a packet, which loops back at the PHY level and is matched against the stored packet, is sent. It cannot be run as a health-monitoring test. In certain cases when this test is run on-demand, ports are moved to the error-disabled state. In such cases, use the shut and no shut command in interface configuration mode to reenable these ports.

Note DiagScratchRegisterTest This Scratch Register test monitors the health of ASICs by writing values into registers and reading back the values from these registers. Configuring Online Diagnostics Generic Online Diagnostics (GOLD) Tests Attribute Description Disruptive or Nondisruptive Nondisruptive Recommendation Run this as a health-monitoring test in case you experience any problem with the fan module. Default On. Intitial release Cisco IOS XE Everest 16.6.1. Corrective action – Hardware support Supervisors. Attribute Description Disruptive or Nondisruptive Disruptive. Recommendation If the link to the external connector is down, run this on-demand test to check the health of the link.

Default Off. Intitial release Cisco IOS XE Everest 16.6.1. Corrective action – Hardware support Supervisors. Attribute Description Disruptive or Nondisruptive Nondisruptive. Configuring Online Diagnostics 3

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Generic Online Diagnostics (GOLD) Tests

DiagPoETest This test checks the PoE controller functionality. Do not perform this test during normal switch operation. DiagStackCableTest This test verifies the stack-ring loopback functionality in the stacking environment. It cannot be run as a health-monitoring test. DiagMemoryTest Configuring Online Diagnostics Generic Online Diagnostics (GOLD) Tests Attribute Description Recommendation Do not disable. Run this test if the task of writing values to the registers fails. This can be run as a health-monitoring test and also as an on-demand test. Default On. Intitial release Cisco IOS XE Everest 16.6.1. Corrective action – Hardware support Supervisors.

Attribute Description Disruptive or Nondisruptive Nondisruptive. Recommendation Run this test if you experience PoE controller issues with a port. This can be run only as an on-demand test. Default Off. Intitial release Cisco IOS XE Everest 16.6.1. Corrective action – Hardware support Linecards. Attribute Description Disruptive or Nondisruptive Disruptive. Recommendation Run this test to verify the stack-ring loopback functionality in the stacking environment. Default Off. Intitial release Cisco IOS XE Everest 16.6.1. Corrective action If the test fails, check the stack cables and connectors. Hardware support Supervisors. Configuring Online Diagnostics 4

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