A-19
Cisco 7600 Series Router Cisco IOS Software Configuration Guide, Release 12.2SX
OL-4266-08
Appendix A Online Diagnostic Tests
DFC Layer 3 Forwarding Engine Tests
DFC Layer 3 Forwarding Engine Tests
The DFC Layer 3 Forwarding Engine tests consists of the following tests:
TestFibDevices, page A-19
TestIPv4FibShortcut, page A-20
TestIPv6FibShortcut, page A-20
TestMPLSFibShortcut, page A-21
TestNATFibShortcut, page A-21
TestL3Capture2, page A-22
TestAclPermit, page A-22
TestAclDeny, page A-23
TestQoS, page A-23
TestNetflowShortcut, page A-24
TestFibDevices
The TestFibDevices test verifies that the FIB TCAM and adjacency devices are functional. One FIB
entry is installed on each FIBTCAM device and a diagnostic packet is sent to make sure that the
diagnostic packet is switched by the FIB TCAM entry installed on the TCAM device. This is not an
exhaustive TCAM device test. Only one entry is installed on each TCAM device.
Note Compared to the IPv4FibShortcut and IPv6FibShortcut tests, the TestFibDevices test tests all FIB and
adjacency devices using IPv4 or IPv6 packets, depending on your configuration.
Ta b l e A-32 TestQoS Test Attributes
Attributes Description
Disruptive/Nondisruptive Disruptive for looped back ports. The disruption is 500 ms.
Recommendation Schedule during downtime.
Default This test runs by default during bootup or after a reset or OIR
Release 12.1(13)E, 12.2(14)SX.
Corrective action None. See the system message guide for more information.
Hardware support Supervisor engines and DFC-enabled modules.
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