I had a setup with 9/125 micron single mode cable ( Length - 350Mtrs). Both ends connected with 10/100 Media convertor ( Brodcom make). Now I have changed in one end with 10/100/1000 (Hp procurve -1800 series) switch with LX Module ( J4859C). There is no link in the 1800 side. Pls help me to resolve this.
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J4863A is another module that this switch supports. What is the trouble with yours? HP ProCurve support should be able to help out - 1-866-my-procurve. If there's trouble with the blade, HP will replace it as it has a lifetime warranty.
It is not a distance limitation of the switch, rather the cabling in the walls and ceiling. If the cable is Cat5 it can be up to 100M, but this can be drastically reduced with things like EM interference from fluorescent lights, kinks in cable and more. The switch auto detects the maximum reliable speed and this interference would cause it to drop to 10MBps. If you don't have a cable certifier (very expensive) you may want to consider simply replacing the cabling run with Cat6 following best installation practices. You can learn more at http://www.lanshack.com/cat5e-tutorial.aspx.
Have you tried to telnet into your device and turn up the logging? Also, have you confirmed at what duplex you are running on the ports that the actual connection is coming in on? Is there a firewall connected to your switches? If so, have you checked the NIC cards to make sure they are functioning appropiately? Check out your DMZ card to see if that is causing any issues.
I can assist with the full and half duplex question...but I'll need a specific HP model number for the Procurve in order to give you correct advice about it.
If the Procurve is not configurable, or has never been configured, then it is using autonegotiation to determine speed and duplex. Each of your computers should also be set to auto for speed and duplex.
The general rule of thumb is to make sure that speed and duplex for both ports on a link are set the same. For example, if the port at one end of a cable is set manually, then the port at the other end must also be set manually...to the same speed and duplex values. If one port is set to auto, then the port at the other end of the cable must also be set to auto.
Could be damaged cable between the media centre and bass module (check along cable length for damage, kinks or at DIN plug ends for bent/damaged pins), faulty media centre (unlikely) or fault in the bass module....