Allied Telesis AT-9000 Series - Manual (Page 180)

Chapter 16: Setting RADIUS and TACACS+ Clients
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Figure 62. Authentication Server Configuration Page with TACACS+ Tab
4. Change the following fields as needed:
 Timeout Value— Enter the length of the time, in seconds, that the
switch waits for a response from a TACACS+ server to an
authentication request, before querying the next server in the list.
The range is 1 to 1,000 seconds. The default value is 5.
 Key Value— Enter the value of the global encryption key of the
TACACS+ servers. You can define a global encryption key if you
have one TACACS+ server or if there is more than one server and
they all use the same encryption key. The maximum length is 40
characters. Special characters are allowed, but spaces are not
permitted.
Caution
To define two or three servers that use different encryption keys, do
not enter a global encryption key value on this web page. Instead,
define the individual keys when you add the IP addresses of the
servers to the switch on the TACACS+ Add page. See “Adding a
RADIUS Server” on page 177.