Problem of link between devices on OV2500

[zepeki]

Hello,
I created this topic because I regularly have problems with the links between the Alcatel devices on the OmniVista 2500. Very often and randomly I have loss of link between 2 devices, then when I try to make a Poll link to bring up the link, at least one of the two devices does not see the other one anymore to make the link. Whether they are connected via SFP or Ethernet, the problem is always there. Sometimes the links come back up only 6-7 days later, or sometimes never.

Thanks in advance for your answers.

Thomas