Symptom
when configuring "link loopback" on physical port of N3548, observe the following errors:
N3K-C3548-9x(config-if)# link loopback
Internal error during command execution (11 8b)
2023 Aug 15 19:55:55 N3K-C3548-9x %VSHD-2-VSHD_SYSLOG_EOL_ERR: EOL function pm_cli_ethpm_set_port_config from library libpmcli_eth.so exited due to Signal 11
2023 Aug 15 19:56:06 N3K-C3548-9x %SYSMGR-2-LAST_CORE_BASIC_TRACE: : PID 25921 with message vsh.bin(non-sysmgr) crashed, core will be saved .
2023 Aug 15 20:06:11 N3K-C3548-9x %VSHD-2-VSHD_SYSLOG_EOL_ERR: EOL function pm_cli_ethpm_set_port_config from library libpmcli_eth.so exited due to Signal 11
2023 Aug 15 20:08:57 N3K-C3548-9x %SYSMGR-2-LAST_CORE_BASIC_TRACE: : PID 27292 with message vsh.bin(non-sysmgr) crashed, core will be saved .
2023 Aug 15 20:56:25 N3K-C3548-9x %VSHD-2-VSHD_SYSLOG_EOL_ERR: EOL function pm_cli_ethpm_set_port_config from library libpmcli_eth.so exited due to Signal 11
2023 Aug 15 20:57:46 N3K-C3548-9x %SYSMGR-2-LAST_CORE_BASIC_TRACE: : PID 32605 with message vsh.bin(non-sysmgr) crashed, core will be saved .
Conditions
-3548 switch
-configuring "link loopback" on a physical interface
This fix is applicable for all n9k platform.