Example: Enabling Load Balancing For A Global Radius Server Group - Cisco Catalyst 2960 series Configuration Manual

Configuration Examples for RADIUS Server Load Balancing
Author:request 0, timeouts 0
Account:request 0, timeouts 0
Elapsed time since counters last cleared:0m
RADIUS:id 9, priority 2, host 192.0.2.238, auth-port 2015, acct-port 2016
State:current UP, duration 3781s, previous duration 0s
Dead:total time 0s, count 0
Quarantined:No
Authen:request 0, timeouts 0
Author:request 0, timeouts 0
Account:request 0, timeouts 0
Elapsed time since counters last cleared:0m

Example: Enabling Load Balancing for a Global RADIUS Server Group

The following examples show how to enable load balancing for global RADIUS server groups. These examples
are shown in three parts: the current configuration of the RADIUS command output, debug output, and
authentication, authorization, and accounting (AAA) server status information. You can use delimiting
characters to display relevant parts of the configuration.
The following example shows the relevant RADIUS configuration:
Device# show running-config | include radius
aaa authentication ppp default group radius
aaa accounting network default start-stop group radius
radius-server host 192.0.2.238 auth-port 2095 acct-port 2096 key cisco
radius-server host 192.0.2.238 auth-port 2015 acct-port 2016 key cisco
radius-server load-balance method least-outstanding batch-size 5
Lines in the current configuration of the preceding RADIUS command output are defined as follows:
• The aaa authentication ppp command authenticates all PPP users using RADIUS.
• The aaa accounting command enables the sending of all accounting requests to an AAA server when
the client is authenticated and then disconnected through use of the start-stop keyword.
• The radius-server host command defines the IP address of the RADIUS server host with the authorization
and accounting ports specified and the authentication and encryption keys identified.
• The radius-server load-balance command enables load balancing for global RADIUS server groups
with the batch size specified.
The show debug sample output below shows the selection of the preferred server and the processing of
requests for the configuration:
Device# show debug
General OS:
AAA server group server selection debugging is on
#
<sending 10 pppoe requests>
Device#
*Feb 28 13:40:32.199:AAA/SG/SERVER_SELECT(00000014):No preferred server available.
*Feb 28 13:40:32.199:AAA/SG/SERVER_SELECT:Obtaining least loaded server.
Consolidated Platform Configuration Guide, Cisco IOS Release 15.2(4)E (Catalyst 2960-X Switches)
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Response:unexpected 0, server error 0, incorrect 0, time 0ms
Transaction:success 0, failure 0
Response:unexpected 0, server error 0, incorrect 0, time 0ms
Transaction:success 0, failure 0
Response:unexpected 0, server error 0, incorrect 0, time 0ms
Transaction:success 0, failure 0
Response:unexpected 0, server error 0, incorrect 0, time 0ms
Transaction:success 0, failure 0
Response:unexpected 0, server error 0, incorrect 0, time 0ms
Transaction:success 0, failure 0
Response:unexpected 0, server error 0, incorrect 0, time 0ms
Transaction:success 0, failure 0