I've got a WS-C6506-E version Version 12.2(17d)SXB5, and need to implement IP SLA and object tracking. I've realized that commands ip sla <operation number> doesn't even exist. So I've thought about an upgrade and in CISCO I've found version 12.2(33)SXH5. Just wanted to ask if compatibility is OK or about your experience working with this version? Please feel free to ask me as much as needed information, any comment will be appreciated.