Hello, I wanted to upgrade the IOS image of my lab switch, (it's a lab switch, but it's important to us) the image that was running is C2960 Software (C2960LANBASEK9M), Version 122(44)SE6, RELEASE SOFTWARE (fc1) I've tried the following two images, assuming that number 2 is the official one,Cisco WSCTCL Catalyst 2960 Series 8Port 1SFP Port Switch 6MthWty $ $32 shipping Cisco WSC2960C8TCL Catalyst 2960C Series 8Port 2xSFP Managed Switch $4500 Free shipping Cisco WSC2960CX8TCL Catalyst 2960CX Series 8Port 2 x 1G Uplinks Switch $CISCO Catalyst 2960 WSCTTL Ethernet Switch Standards IEEE 8021s IEEE 8021w IEEE 8021x IEEE 8023ad IEEE 8023ah (100BASEX single/multimode fiber only) IEEE 8023x full duplex on 10BASET, 100BASETX, and 1000BASET ports IEEE 8021D Spanning Tree Protocol IEEE 8021p CoS Prioritization IEEE 8021Q VLAN IEEE 8023 10BASET specification IEEE 8023u 100BASETX specification IEEE Ws C2960 8tc L Cisco 2960 Ethernet Switch Ws-c2960-8tc-l v01