IPSLA WAN with Cisco Switch 3750-X

Hi Team,

I'm running build 9100 and my switch is IOS 12.2(55)SE1.

I'm trying to configure the IPSLA WAN feature, but nothing happens. I have already setup a RW community on switch working perfectly because the OpManager detects it, but when I submit the changes, no commands are applied on running config.

I'm getting the following on switch logging: May 28 11:52:32.613 CRSJ: %SYS-5-CONFIG_I: Configured from 7.108.50.13 by snmp, but as I said, no commands are applied. Take a look to the following output on switch console:

#sh ip sla conf

#sh ip sla stat

#

Checking on Cisco web site, the 3750-X is able to work with IPSLA:

http://www.cisco.com/en/US/docs/switches/lan/catalyst3750x_3560x/software/release/12.2_55_se/configuration/guide/swipsla.html#wp1092081

Thanks.