D-Link DGS-3000 Reference Manual page 76

DGS-3000 Series Layer 2 Managed Gigabit Ethernet Switch CLI Reference Guide
add - Adds a server host to a server group.
delete - Removes a server host from a server group.
server_host - Specify the IP address of the server host.
<ipaddr> - Enter the server host IPv4 address.
ipv6 - Specify the server host IPv6 address.
<ipv6addr> - Enter the server host IPv6 address.
protocol - Specify the authentication protocol used.
tacacs - Specify that the TACACS authentication protocol will be used.
xtacacs - Specify that the XTACACS authentication protocol will be used.
tacacs+ - Specify that the TACACS+ authentication protocol will be used.
radius - Specify that the RADIUS authentication protocol will be used.
Restrictions
Only Administrators can issue this command.
Example
To add an authentication server host to an server group:
DGS-3000-26TC:admin#config authen server_group mix_1 add server_host 10.1.1.222
protocol tacacs+
Command: config authen server_group mix_1 add server_host 10.1.1.222 protocol
tacacs+
Success.
DGS-3000-26TC:admin#
5-20 delete authen server_group
Description
This command is used to delete a user-defined authentication server group.
Format
delete authen server_group <string 15>
Parameters
<string 15> - Enter the user-defined server group name. This value can be up to 15 characters
long.
Restrictions
Only Administrators can issue this command.
Example
To delete a user-defined authentication server group:
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