不能连接cisco交换机

Thank you for you help,
可以正常ssh linux主机，但不能ssh cisco交换机，输入用户名和密码后按“继续”没什么反应，但用SecurtCRT却能正常登陆，what happen
？

Start by reproducing the SSH login to the Cisco switch described in the issue, using the supplied screenshot and comparing it with a successful SecureCRT login. Trace the connection after the username and password are submitted; the issue is done when the switch session connects normally instead of becoming unresponsive.

Written by the indexing model from the issue text.