Cisco Systems XR manual Comprises three member servers, SR-14

Authentication, Authorization, and Accounting Commands on Cisco IOS XR Software

aaa group server radius

Task ID	Task ID	Operations
	aaa	read, write
Examples	The following example shows the configuration of an AAA group server named radgroup1, which
	comprises three member servers:
	RP/0/RP0/CPU0:router# configure
	RP/0/RP0/CPU0:router(config)# aaa group server radius radgroup1
	RP/0/RP0/CPU0:router(config-sg-radius)#server 10.0.0.5 auth-port 1700 acct-port 1701
	RP/0/RP0/CPU0:router(config-sg-radius)#server 10.0.0.10 auth-port 1702 acct-port 1703
	RP/0/RP0/CPU0:router(config-sg-radius)#server 10.0.0.20 auth-port 1705 acct-port 1706
Note	If the auth-portport-numberkeyword and argument and the acct-portport-numberkeyword and
	argument are not specified, the default value of the port-numberargument for the auth-portkeyword is
	1645 and the default value of the port-numberargument for the acct-portkeyword is 1646.
Related Commands	Command	Description
	radius-server host	Specifies a RADIUS server host.

Cisco IOS XR System Security Command Reference

SR-14