https://community.extremenetworks.com/t5/extremeswitching-exos-switch/what-is-the-quot-ecn-rework-quot-of-the-fa/m-p/47437#M12195 As far as I understand, ECN means "Engineering Change Number".<BR /> That means, if there is a need for a hardware rework on "older" HW revisions that will be documented in a ECN.<BR /> The fact that in your case it's marked as "No" means there is no change needed.<BR /> Fri, 10 Feb 2017 15:25:00 GMT Ron_Huygens 2017-02-10T15:25:00Z https://community.extremenetworks.com/t5/extremeswitching-exos-switch/what-is-the-quot-ecn-rework-quot-of-the-fa/m-p/47436#M12194 What is the " ECN rework " of the FA?<BR /> <BR /> Please explain this in detail.<BR /> <BR /> FA : BDXA-10G48X<BR /> <BR /> FA Report :<BR /> <BR /> 1.Visual Inspection – Passed<BR /> <BR /> 2.Confirmed customer's failure symptom – No<BR /> <BR /> 3.ECN rework (Yes/No) – No . <BR /> <BR /> 4.Function Test (Alpha Diag) – Passed<BR /> <BR /> 5.Traffic test,(Overnight) – Passed <BR /> <BR /> <BR /> <BR /> Fri, 10 Feb 2017 13:07:00 GMT https://community.extremenetworks.com/t5/extremeswitching-exos-switch/what-is-the-quot-ecn-rework-quot-of-the-fa/m-p/47436#M12194 Lee_Soo-Jeong 2017-02-10T13:07:00Z https://community.extremenetworks.com/t5/extremeswitching-exos-switch/what-is-the-quot-ecn-rework-quot-of-the-fa/m-p/47437#M12195 As far as I understand, ECN means "Engineering Change Number".<BR /> That means, if there is a need for a hardware rework on "older" HW revisions that will be documented in a ECN.<BR /> The fact that in your case it's marked as "No" means there is no change needed.<BR /> Fri, 10 Feb 2017 15:25:00 GMT https://community.extremenetworks.com/t5/extremeswitching-exos-switch/what-is-the-quot-ecn-rework-quot-of-the-fa/m-p/47437#M12195 Ron_Huygens 2017-02-10T15:25:00Z