Cisco CRS User Manual page 111

Authentication, Authorization, and Accounting Commands
Command
tacacs-server key, on page 102
tacacs-server timeout, on page 104
timeout (TACACS+), on page 113
OL-24740-01
Cisco IOS XR System Security Command Reference for the Cisco CRS Router, Release 4.1
Description
Globally sets the authentication encryption key used
for all TACACS+ communications between the router
and the TACACS+ daemon.
Globally sets the interval that the router waits for a
server host to reply.
Specifies a timeout value that sets the length of time
the authentication, authorization, and accounting
(AAA) server waits to receive a response from the
TACACS+ server.
tacacs-server host
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