OPERATIONAL DEFECT DATABASE
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N30xx/31xx switches may fail PortLoopback diagnostic: %DIAG_PORT_LB-2-PORTLOOPBACK_TEST_FAIL: Module:1 Test:PortLoopback failed 10 consecutive times. Faulty module: Error:Loopback test failed. Packets lost on the SUP in the receive direction %DIAGCLIENT-2-EEM_ACTION_HM_SHUTDOWN: Test has been disabled as a part of default EEM action show diagnostic result module 1 test 14 d Error code ------------------> DIAG TEST FAIL(Loopback test ) Last failure reason ---------> Loopback test failed. Packets lost on the SUP in the receive direction
Port Admin Down with mode dot1q-tunnel: int ethx/y shutdown >>>>> should be configured before next command to set port mode to dot1q-tunnel switchport mode dot1q-tunnel
Do not configure port in Admin Down state with mode dot1q-tunnel. If already in error state, reset the interface to default settings: conf t default interface eth Port can now be configured for operational use.
PortLoopback : A health monitoring test that will test the packet path from the Supervisor card to the physical port in ADMIN DOWN state on Linecards. Interface Rx and Tx packet counters are incremented (approximately four packets every 15 minutes) for ports in the shutdown state. This is not a hardware failure, so no RMA is required. Once diagnostic test PortLoopback is disabled by system internal policy PortLoopback test remains disabled system wide. Currently no method to reactivate it, requires switch reload to start it.
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