XRootD supports packet marking with UDP firefly: https://xrootd.slac.stanford.edu/doc/dev56/xrd_config.htm#_Toc135684345 This functionality works with XrootD. The user can pass the information about the experiment and its activity by specifying in the opaque data of a transfer the following key/value: `scitag.flow=<experimentID><<6|<activityID>` . For HTTP TPC transfer, the user will pass these information via specific headers as described here: https://docs.google.com/document/d/1x9JsZ7iTj44Ta06IHdkwpv5Q2u4U2QGLWnUeN2Zf5ts/edit#heading=h.ksbp08p3u6lb - `TransferFlowExperiment` - `TransferHeaderFlowExperiment` - `TransferFlowActivity` - `TransferHeaderFlowActivity` I believe I just need to pass the information coming from the headers to the xroot layer by appending `scitag.flow=expe|activity` ? -- Reply to this email directly or view it on GitHub: https://github.com/xrootd/xrootd/issues/2024 You are receiving this because you are subscribed to this thread. Message ID: <[log in to unmask]> ######################################################################## Use REPLY-ALL to reply to list To unsubscribe from the XROOTD-DEV list, click the following link: https://listserv.slac.stanford.edu/cgi-bin/wa?SUBED1=XROOTD-DEV&A=1