In order to enable SSH access to Cisco Nexus 1000v (if it’s not enabled yet) followign commands have to be issues from Console or Telnet connection:

Nexus 1000v Switch
login: admin
Cisco Nexus Operating System (NX-OS) Software
TAC support:
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nexus1000v# conf t
Enter configuration commands, one per line.  End with CNTL/Z.
nexus1000v(config)# ssh key rsa 2048 force
deleting old rsa key.....
generating rsa key(2048 bits).....
generated rsa key
nexus1000v(config)# ssh server enable

Now you can use SecureCRT or PuTTY to connect to Cisco Nexus vis SSH of course if IP address is configured on the device and it is connected to network 🙂