Recent content by helmethead

Make sure the ports or what they are connecting to our not set to HALF DUPLEX. Also make sure you have auto-negaotiation set the same on both sides of the link, doesn't matter if it is enabled or disabled, as long as they match on each end. It seems like a port setting if your able to move it to...

Being a Nortel support engineer I have ran into this issue many time. I will assume your running Windows XP on the computer you were consoled in from, the issue is between winXP and hyperterm. So yes using another version of hyperterm will work or you can simply try from another pc running a...

Good news/bad news Karl, The good news is that you now know what your issue is, bad news is yes, you have the wrong gbics. Singlemode fiber has a core ( glass ) diameter of anywhere between 8-10 microns, that why I assumed thats what you meant when you said 8 core. The 450-LX mda you have...

Karl, I have a Nortel 5510 in my lab with a fiber gbic, I just tested it and my "IN USE" LED did not light until I made the fiber connection. Also keep in mind that the sfp gbic ports are shared with the corresponding copper ports, do you have anything connected to the 10/100/1000 copper...

You mentioned 8-core fiber backbone, I assume that means you are connecting singlemode fiber to this SX gbic? If so that is not correct, that gbic sends out LED light were singlemode cable is made for laser light. What is the distance between the switches? You may need to either swap out the SX...