We have plan to build a new NDFC to manage our MDS switches. It is more complex and will take some time to deploy. Few challenges are resource requirement, license transfer and other new requirement. In the meantime, we continue to use existing DCNM 11.5(4).
Last week, suddenly, there is a login error with the java SAN client "RequestSendFailed: EJBCLIENT000409". We have restarted the services and reboot the DCNM server. However, it does not help.
Do some research and most likely it is related to certificate. We don't have our own certificate. So, most likely, the default expired. It is confirmed by checking the certificate expiration date from the web browser. So, open a ticket with support and ask them to renew the certificate for 2 more years. Then, I can login without issue.
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