Cisco NCS 6000 Series
Routers support Online Diagnostics feature that enables you to run tests to
verify the hardware functionality when connected to a live network. Scheduled
diagnostics and health-monitoring ensures high availability of a system. When a
problem is detected, diagnostic test results help in isolating the location of
the problem, enabling you to take appropriate measures to resolve the issues in
The diagnostic tests
check different hardware components in a system and verify the data paths and
control signals. These tests detect problems (if any) in the following areas:
Hardware components, connectors, solder joints, and memory.
The diagnostic tests
can either be run online or offline but, Cisco NCS 6000 Series Routers support
only online (run-time) diagnostics tests. These online tests can either be
disruptive or non-disruptive. Non-disruptive tests run in the background and do
not affect the data or control plane of a system. However, disruptive tests
affect live packet flows and have to be scheduled only during preset
Cisco NCS 6000
Routers do not support offline diagnostic tests.
tests can be categorized based on the way they are executed. They are:
diagnostics: Tests that are run as needed from the command-line interface (CLI)
diagnostic start command. These tests are
useful when a hardware fault is suspected. You can check the diagnostics
results to know the status and troubleshoot the hardware functionality.
diagnostics: Tests that can either be run periodically or at a specific time.
These tests can be used as disruptive tests and run during maintenance windows.
When a failure is detected in the system, the diagnostic results are saved and
syslog messages are displayed.
on-demand and scheduled diagnostic tests do not cause bad hardware to reset or
diagnostics: Tests that run in the background as a non-disruptive test when the
system is in operation and connected to a live network. These tests
pro-actively detect hardware failures in a live network. You can schedule the
number and interval granularity of these tests.
Different types of
online diagnostic tests supported by Cisco NCS 6000 Routers are:
Inactive Link Test
NPU Path Ping
Cisco NCS 6000 Routers support only File System tests in
File System (FS)
Diagnostic Tests: File System test runs diagnostics on the file system of
the virtual machine on which it is running. File System tests can detect if the
file-system is full, file-system corruptions, and permission issues. For
details on online diagnostic commands see,
Commands chapter in
System Monitoring Command
Reference for Cisco NCS 6000 Series Routers.