...

• Create cross-connections:
  curl --cookie PHPSESSID=ue5gks2db6optrkputhhov6ae1 -X POST --header "Content-Type: application/json" --header "Accept: application/json" -d "{\"in\": \"1.1.1\",\"out\": \"6.1.1\",\"dir\": \"bi\",\"band\": \"O\"}" --user admin:pxc*** "http://osw-daq-calients320.pcdsn/rest/crossconnects/?id=add"
• Activate cross-connections:
  curl --cookie PHPSESSID=ue5gks2db6optrkputhhov6ae1 -X POST --header "Content-Type: application/json" --header "Accept: application/json" --user admin:pxc*** "http://osw-daq-calients320.pcdsn/rest/crossconnects/?id=activate&conn=1.1.1-6.1.1&group=SYSTEM&name=1.1.1-6.1.1"
  • This doesn't seem to work: Reports '411 - Length Required'
    Use the web GUI for now
• List cross-connections (easier to read in the web GUI):
  curl --cookie PHPSESSID=ue5gks2db6optrkputhhov6ae1 -X GET --user admin:pxc*** 'http://osw-daq-calients320.pcdsn/rest/crossconnects/?id=list'
• Save cross-connections to a file:
  • Go to http://osw-daq-calients320.pcdsn/
  • Navigate to Ports→Summary
  • Click on 'Export CSV' in the upper left of the Port Summary table
  • Check in the resulting file as lcls2/psdaq/psdaq/cnf/BOS-PortSummary.csv

XPM

Link qualification

Looking at the eye diagram or bathtub curves gives really good image of the high speed links quality on the Rx side. The pyxpm_eyediagram.py tool provides a way to generate these plots for the SFPs while the XPM is receiving real data.

How to use (after loading conda env.)

python pyxpm_eyescan.py --ip {XPM_IP_ADDR} --link {AMC_LINK[0:13]} [--hseq {VALUE}] [--eye] [--bathtub] [--gui] [--forceLoopback] [--target {VALUE}]

Where:

• hseq VALUE: set the high speed equalizer value (see: High-speed repeater configuration below)
• eye: ask for eye diagram generation
• bathtub: ask for the bathtub curve generation
• gui: open debugging view
• forceLoopback: set the link in loopback during the qualification run

High-speed repeater configuration ("equalizer" settings)

...