We had encountered a slow respone of command authorization with Cisco 3750 using TACACS+ protocol communicate with Cisco ACS 4.2. When we copy and paste more than 20 command lines, it is required more than 15s to complete and sometimes with "authorization failed". It seems that single connection can help, but the TACACS connection is keep connected in between ACS and switch. Not sure any performance impact to the Cisco ACS 4.2 and the maximum session to handle.
Any advice???
laut
