How to Change Radius Server Priority on Dell Switch

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Scenario:
Make
: Dell
Model: N4032, N2048, etc
Server: Radius Server 2012, 2016, 2019
Description: This article is to discuss and show, how to change the Radius Server priority on a Dell switch stack if Radius Fail-over on Dell Switches is configured. Refer to the article to know How to Configure Radius Authentication on Dell Switches.

If you are using Cisco Switches then follow the linked article to know “How to change radius server priority on Cisco switches“. Methods of changing the radius priority on Dell and Cisco switches are different.

Radius Priority Confirmation

Step1: Login
SSH onto the Dell switch and log in using the username and password. Have you forgotten the password? Click the link to know how to Reset Forgotten Dell Switch Password.

SSH 192.168

Step2: Confirm Radius Servers
Check and confirm the priorities of the radius servers which are configured on the switch (should be more than 1). Use the command shown below to know the radius priority status.

edledge_switch#show aaa servers

IP address Type Port TimeOut Retran. DeadTime Source IP Prio. Usage
------------ ---- ----- ------------ ------- -------- ------------- ----- ------
10.1.1.10 Auth 1812 Global Global Global Global 1 all
10.1.1.11 Auth 1812 Global Global Global Global 2 all
10.1.1.12 Auth 1812 Global Global Global Global 3 all

Considering here, three radius servers are configured on the switch as below

Radius 1
edledge_1, IP Address = 10.1.1.10 with Priority = 1 (as shown above)
Radius 2
edledge_2, IP Address = 10.1.1.11 with Priority = 2 (as shown above)
Radius 3
edledge_3, IP Address = 10.1.1.12 with Priority = 3 (as shown above)

Changing Radius Priority

Step3: Change Priority
Execute the commands shown below to change the priority of the radius server after going into the privilege mode.

edledge_switch#configure t
edledge_switch(config)#radius server auth 10.1.1.11
edledge_switch(config-auth-radius)#priority 4
edledge_switch(config-auth-radius)#exit
edledge_switch#

Step4: Confirm Radius Servers
Check the configured radius servers on the switch. Use the command as shown below.

edledge_switch#show aaa servers

IP address Type Port TimeOut Retran. DeadTime Source IP Prio. Usage
----------- ----- ----- ----- ------- ------- -------- -------- ------
10.1.1.10 Auth 1812 Global Global Global Global 1 all
10.1.1.11 Auth 1812 Global Global Global Global 4 all
10.1.1.12 Auth 1812 Global Global Global Global 2 all

By this, we can change the priority of the Radius server of Dell Switches as per our requirement.

Other topics on Radius & Dell Switch

Source: DellLab, Knowledge Base

EA00116

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