I'm late on this but refused to let rrdtool, cacti, and rpn functions defeat me. -wej -------------- next part -------------- A non-text attachment was scrubbed... Name: combined2.png Type: image/png Size: 48710 bytes Desc: not available Url : http://www.daedelus.com/pipermail/ietf79-tech/attachments/20101110/aad15cdb/attachment-0001.png