To connect two devices, you have a fiber pair. One fiber connects in one direction, the other fiber connects in the other direction. Disconnect one end. If you still have the one direction working, you have disconnected the bad fiber. If both directions are now out, you have disconnected the good connection.
On Fri, Sep 11, 2020 at 6:56 PM Attila Fogarasi <[email protected]> wrote: > > What do you mean by "see CSYSTEM and LSYSTEM"....is it definition or actual > status? If actual then one CPC can connect to the other -- so the fiber > link is working, while the other side cannot see CSYSTEM (you presumably > meant production can see only LSYSTEM, as local) -- which narrows the > problem down to what can cause asymetric connectivity. If it really is the > remote system, then its an IOCDS definition problem and not link > performance. A mismatch in the CSYSTEM and LSYSTEM names would cause > failure to connect. I'm suspicious that it is a definition problem, it > should look something like this (sorry for formatting, took it from the z14 > redbook): > SYSTEM=(3906,1),LSYSTEM=CETUS, * > RESOURCE PARTITION=((CSS(2),(CETUS2C,1),(CETUS24,2),(CETUS25,3)) > CHPID PATH=(CSS(2),04),SHARED, * > PARTITION=(CETUS2C),(=)), * > CPATH=(CSS(0),02),CSYSTEM=DRACO,PCHID=140,PORT=2,TYPE=CL5 > CNTLUNIT CUNUMBR=FFF4,PATH=((CSS(2),04)),UNIT=CFP > SYSTEM=(2964,1),LSYSTEM=DRACO, * > RESOURCE PARTITION=((CSS(0),(DRACO01,1)),(DRACO02,2),(DRACO03,3),(* > DRACO04,4) > CHPID PATH=(CSS(0),02),SHARED, * > PARTITION=((DRACO01,DRACO02,DRACO03,DRACO04)), * > CPATH=(CSS(2),04),CSYSTEM=CETUS,PCHID=171,PORT=1,TYPE=CL5 > CNTLUNIT CUNUMBR=FFF3,PATH=((CSS(0),02)),UNIT=CFP > > On Fri, Sep 11, 2020 at 9:55 PM Jennifer McCumber < > [email protected]> wrote: > > > I am trying to add a second CPC to my environment and I am having an issue > > getting my 2 z14s to connect via CE LR. On the 'new' system I see CSYSTEM > > and LSYSTEM as expected but on the other side (current production) I can > > only see CSYSTEM. > > > > I have cleaned cables, toggled pchids(vchids), wrap tested the ports and > > everything else I can think to do. I am going between buildings using patch > > panels/dark fiber. The SEs are at the same MCL bundle levels. I have sent a > > PMR to IBM, they have reviewed the logs and the IOCDS's on both CPCs but > > have found nothing wrong. > > Does anyone have any suggestions? > > Thank you, > > Jennifer > > > > ---------------------------------------------------------------------- > > For IBM-MAIN subscribe / signoff / archive access instructions, > > send email to [email protected] with the message: INFO IBM-MAIN > > > > ---------------------------------------------------------------------- > For IBM-MAIN subscribe / signoff / archive access instructions, > send email to [email protected] with the message: INFO IBM-MAIN -- Mike A Schwab, Springfield IL USA Where do Forest Rangers go to get away from it all? ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
