I’m running NOS 4.0.1, tried to create a port-channel on this VDX then it crashed.

Found this in the syslog ras

2015/02/17-09:17:36, [SSMD-1001], 504432, DCE, ERROR, VDX, Failed to allocate memory: (ssm_nsm_link_attr_update).

2015/02/17-09:17:35, [SSMD-1001], 504429, DCE, ERROR, VDX, Failed to allocate memory: (ssm_ha_send_event).

It wouldn’t join back into the cluster because of mismatched configuration. I had to change it to default config then rejoin the cluster.