In the Toolbox CLI, display the local port log.
[toolbox-cli] show log ports local=True
DATE PORT SWITCH STATUS PORT GUID HCA GUID TYPE NODE DESCRIPTION LAST TIME SEEN
-------------------- ---- ---------- -------- ------------------ ------------------ ------- ------------------------------------------------------- --------------------
07/Mar/2009 02:16:30 18 nsn156-81 DISABLED 0x0002c90300089240 0x0002c9030008923e HCA MT25408 ConnectX Mellanox Technologies 06/Mar/2009 22:48:32
14/Aug/2015 07:44:50 35 nsn156-102 DISABLED 0x0002c9030008e138 0x0002c9030008e136 HCA nsn156-54 mlx4_0 14/Aug/2015 07:44:13
14/Aug/2015 07:49:20 35 nsn156-102 ENABLED 0x0002c9030008e138 0x0002c9030008e136 HCA nsn156-54 mlx4_0
...
[toolbox-cli]