4000M Fiber to 5406ZI fiber

[James C McDaniel]

I'm tring to get a GigaBit Fiber card on my 4000M (J4113A) to talk to my 5406Zl GigaBit GBIC (3458B). If I set the ports to 100M/B they will link but not at G/B speed. My 5406 has a software rev level of 11.41 my 4000 has a software rev level of 09.22. The fiber cable is good as I tested it. HP support has me put but both switch in auto negotiate, and I did and it has not helped. Anybody ever had this?

[Matt Hobbs]

It's impossible to set fiber gigabit ports to 100Mbit so I'm not sure what's going on there.

As long as the speed/duplex match then it should work, either Auto-Auto or 1000FDX-1000FDX.

[James C McDaniel]

If I set the 4000 to 100 M/B FDX it will link. the 5406 is in auto. I'm stumped.

[Matt Hobbs]

The cable is a multimode cable right? (not singlemode). I would still test with another cable if possible.

Fiber issues in my experience always fall into the following:

1. Cabling - verify correct cable type is used and try different cables. Make sure TX is going to RX and vice versa. You can create a loop on the same fiber module to test it's functionality, TX straight back into RX - should get a link.

2. Speed/Duplex settings mismatch. Especially since the 4000M defaults to 1000FDX.

3. Faulty hardware.

More often that not it's 1 and 2.