Here is how to do it.
What do you need only to generate key in the brocade and put it in the server.
Below is the step :
Generate key to remote from brocade to host
1. Generate a private/public key pair on the local switch:
switch:username> sshutil genkey -rsa
Enter passphrase (empty for no passphrase):passphrase
Enter same passphrase again: passphrase
Key pair generated successfully.
2. Export the public key to a remote host:
switch:username> sshutil exportpubkey
Enter IP address: remote host IP Address
Enter remote directory: ~username/.ssh
Enter login name:username
Password:******
public key out_going.pub is exported successfully.
3. Append the public key to the authorized_keys file on the
remote host:
username@remotehost> cat ~/.ssh/outgoing.pub >> \
~/.ssh/authorized_keys
And all done, you do it by your self now. :)