Have your tried flipping one of the patch cables so that what was on the right is now on the left? Fiber is specific as to which one is transmitting and which is receiving but I would hope you would have remembered this.
Jon On Wed, Mar 24, 2010 at 3:47 PM, Harry Singh <[email protected]> wrote: > All: > > It's been ions since I've worked with Fiber and I'm stuck off-site trying > to figure something out and could use some feedback. We ran Multi-Mode 62.5 > Microns 6 strand fiber between two remote locations. At each location is a > 3com 4500 switch which has a dual-personality SFP slot and a SC 1000BASE-SFX > Transeiver plugged-in and recognized by the switches. Specifically this > transceiver: > http://www.3com.com/products/en_US/detail.jsp?tab=features&pathtype=purchase&sku=3CSFP91 > > The fiber runs (not my doing) were run with LC connectors and the switch > supports SC only. I've purchased a single LC->SC patch cable and have it > plugged up on both ends, but no dice. > > I'm not sure if i'm forgetting a fundamental connection requirement with > MMF, but hoping a few of you could shed some light. I've copied a link to > the image of the Fiber termination in my rack at the bottom of this email. > > There are 3 LC connections in the picture. I have a LC/LC patch connected > between, for this discussion, the LC1 and LC3 while LC2 is connected into > the switch via the LC/SC patch. This connection topology is mirrored on the > remote side and no dice. I figure to connect the LC cables from LC1 to LC3 > to complete the loop, per se. I've tried direct connections from all LC > ports into the switch without the rest of the cables connected and nothing > happens. e.g. I can't ping any devices on the either side and i don't see an > activity light on the switchport (FYI ports have been set as trunk ports and > permitting all vlans) > > > http://s396.photobucket.com/albums/pp44/sipe3202/Tech/?action=view¤t=IMG00086-20100324-1340.jpg > > Cheers, > > Harry > > > > > > > ~ Finally, powerful endpoint security that ISN'T a resource hog! ~ ~ <http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/> ~
