Hi, I am attempting to upgrade a Catalyst 3560 v2 Series PoE-48 from an older Catalyst 3560. I have upgraded the new Cat to IOS 12.2(55) and copied the running-config over. When comparing the old running-config to the new running-config I discovered that ip sla enable reaction-alerts is turned on automatically. As this uses memory and could be a potential form of overhead as we don't use it, I would like to turn it off. The command no ip sla enable reaction-alerts Has no effect: See here below. I have removed the MAC address and the standard texts from the show version. Is this a bug or am I missing something in order to turn this unwanted (at the moment) functionality off. === output === G877_S49#show version Cisco IOS Software, C3560 Software (C3560-IPSERVICESK9-M), Version 12.2(55)SE1, RELEASE SOFTWARE (fc1) Technical Support: http://www.cisco.com/techsupport Copyright (c) 1986-2010 by Cisco Systems, Inc. Compiled Thu 02-Dec-10 07:17 by prod_rel_team Image text-base: 0x01000000, data-base: 0x02F00000 ROM: Bootstrap program is C3560 boot loader BOOTLDR: C3560 Boot Loader (C3560-HBOOT-M) Version 12.2(53r)SEY1, RELEASE SOFTWARE (fc1) G877_S49 uptime is 1 hour, 54 minutes System returned to ROM by power-on System image file is "flash:/c3560-ipservicesk9-mz.122-55.SE1/c3560-ipservicesk9-mz.122-55.SE1.bin" ... cisco WS-C3560V2-48PS (PowerPC405) processor (revision L0) with 131072K bytes of memory. Processor board ID FDO1511V1TU Last reset from power-on 3 Virtual Ethernet interfaces 48 FastEthernet interfaces 4 Gigabit Ethernet interfaces The password-recovery mechanism is enabled. 512K bytes of flash-simulated non-volatile configuration memory. Base ethernet MAC Address       : 40:55:39:xx:xx:xx Motherboard assembly number     : 73-12630-01 Power supply part number        : 341-0266-03 Motherboard serial number       : FDO15120H0M Power supply serial number      : DCA1504HGDG Model revision number           : L0 Motherboard revision number     : B0 Model number                    : WS-C3560V2-48PS-E System serial number            : FDO1511V1TU Top Assembly Part Number        : 800-33978-01 Top Assembly Revision Number    : D0 Version ID                      : V06 CLEI Code Number                : COMKX00DRB Hardware Board Revision Number  : 0x02 Switch Ports Model              SW Version            SW Image                  ------ ----- -----              ----------            ----------                *    1 52    WS-C3560V2-48PS    12.2(55)SE1           C3560-IPSERVICESK9-M      Configuration register is 0xF G877_S49#show running-config | include reaction ip sla enable reaction-alerts G877_S49#configure terminal Enter configuration commands, one per line.  End with CNTL/Z. G877_S49(config)#no ip sla enable reaction-alerts  G877_S49(config)#^Z G877_S49# *Mar  1 01:55:06: %SYS-5-CONFIG_I: Configured from console by console G877_S49#show running-config | include reaction ip sla enable reaction-alerts G877_S49# === end output === ... View more