C
HAPTER
 24
  |  Authentication Commands
AAA
–  829  –
aaa group server Use this command to name a group of security server hosts. To remove a 
server group from the configuration list, enter the no form of this 
command. 
SYNTAX 
[no] aaa group server {radius | tacacs+} group-name
radius - Defines a RADIUS server group.
tacacs+ - Defines a TACACS+ server group.
group-name - A text string that names a security server group. 
(Range: 1-64 characters)
DEFAULT SETTING 
None
COMMAND MODE 
Global Configuration
EXAMPLE 
Console(config)#aaa group server radius tps
Console(config-sg-radius)#
server This command adds a security server to an AAA server group. Use the no 
form to remove the associated server from the group.
SYNTAX 
[no] server {index | ip-address}
index - Specifies the server index. 
(Range: RADIUS 1-5, TACACS+ 1) 
ip-address - Specifies the host IP address of a server.
DEFAULT SETTING 
None
COMMAND MODE 
Server Group Configuration
COMMAND USAGE 
◆ When specifying the index for a RADIUS server, that server index must 
already be defined by the radius-server host command.
◆ When specifying the index for a TACACS+ server, that server index 
must already be defined by the tacacs-server host command.