Hi, I am having a problem with a newly installed 3560G-24 connecting via Fibre SFP to a 6509 GBIC blade. I have enabled UDLD Agressive mode on the two respective devices ports and after about 20 seconds the port on the 3560 reports a UDLD condition and shuts down. I have changed GBICs, SFPs, fibre patch cable and ports with the same results. The patch cable is 2 metres long (MM fibre SX SFP/GBIC) could this be the problem? All IOS/CatOS is new. Anyone any ideas?
Thanks in advance.