Yes, that is correct. We had to swap out the SFP's on both ends to get it working last Friday and again yesterday.
On Thu, Nov 9, 2017 at 9:16 PM, Micheal Espinola Jr < [email protected]> wrote: > You are saying that the original SFPs became completely inoperable? > Power-cycling or reseating the SFPs had no positive effect? You had to > resort to replacing the SFPs with new/different units? You had to do this > simultaneously on both ends? > > -- > Espi > > > On Thu, Nov 9, 2017 at 2:26 PM, CSSU NetAdmin <[email protected]> > wrote: > >> We have an interesting situation with a dark fiber connection between two >> of our schools. For 15 months, the connection was great- an HP switch with >> 10 GB SFP on one end and a Sophos 10 GB SFO on the other. Last Friday, the >> connection dropped. After switching out the switch, the SFP for the switch >> and the SFP and port on the Sophos, the connection only came up when we >> replace the SFP's on both ends. It was fine until today- the connection >> dropped. We could only bring it back by replacing the SFP's- with 1 GB >> units because we did not have 10 GB replacements. Last week, our fiber >> provider test the fiber from both ends and it was clear all the way to >> other end- which is about 12 miles. We talked to them today and they >> remain convinced that the fiber is fine. We are going to replace the patch >> cables next but remain skeptical that it isn't an issue with the fiber >> somewhere along the line. >> >> Does anyone have suggestions on where else to look? Thanks! >> > >
