The banner does not appear when the switch is accessed through a SSH

[TCC_2]

Core issue

This issue occurs because the login banner is not encrypted. According to the Secure Shell (SSH) standard, there must be no information passed until the client has connected and the session encryption keys have been exchanged.

This problem is identified by the Cisco bug ID CSCdu13747.

Resolution

The login banner is in unencrypted form and is not supported in the SSH version. Since any unencrypted text cannot be sent before logon, the banner does not appear when the switch is accessed through SSH.

[sanoop.krishnan]

You can also check which version of ssh is running in the switch and the  rsa key, i have seen same issue in switches which are running ssh version 1.

please use following commands to change the ssh version and to generate rsa key.

!
ip domain-name <example.com>
crypto key generate rsa general-keys modulus 1024
ip ssh version 2

!

after this you will be able to see the login banner.

regards

snoopy