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тАО08-12-2003 12:28 AM
тАО08-12-2003 12:28 AM
My question is about 2 Gigabit LX modules, they don't really want to build up a connection.
I have 2 devices:
HP 2512 and HP 4000m, both with LX modules, connected with multimode fiber, length about 330 meters, using mode conditioning patch cord both sides (correctly installed :-).
2512 details: Firmware revision:F.04.08, ROM Version:F.02.01
4000m details: ROM stamp:C.06.01, Image stamp:C.09.16
And somehow there is no link between these ports. I've tried an other (Lucent) gigabit device, and that worked with 2512, but I couldn't try the Lucent with 4000m.
Both switch can see the 1000lx ports without any attention, although 4000m sometimes logged, that Module/Configuration mismatch, but after a reset it could initialize the card.
So, I'm asking whether is there anything i did wrong, or i don't know?
Thanks:
Sanyig
Solved! Go to Solution.
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тАО08-12-2003 12:32 AM
тАО08-12-2003 12:32 AM
Re: Gigabit LX module error in 4000m
you try without mode conditioning patch cord? Lenght is less than 500 meters... ;-)
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тАО08-12-2003 12:41 AM
тАО08-12-2003 12:41 AM
Re: Gigabit LX module error in 4000m
I know that i can set Fdx/Hdx and what else?
>you try without mode conditioning patch cord? >Lenght is less than 500 meters... ;-)
Yes it is less, but we have a passive extension somewhere in the 330 meter, and as i know mode conditioning cannot make it worse than it is, but in the first days we didn't have MCPcord.
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тАО08-12-2003 12:47 AM
тАО08-12-2003 12:47 AM
Re: Gigabit LX module error in 4000m
check that is set to 1000LX and not to auto.... this can cause connectivity problems
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тАО08-12-2003 02:19 AM
тАО08-12-2003 02:19 AM
Re: Gigabit LX module error in 4000m
By this time, i could borrow a Procurve 1600m for testing, but it asks for username, and the owners doesn't know the password.
Is there any manual about HP Procurve restoring factory defaults?
Thanks
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тАО08-12-2003 03:11 AM
тАО08-12-2003 03:11 AM
SolutionYou can Reset the Password by pressing the Clear button for about 10 seconds.
On the LX link issue. the 2512 defaults to Auto while the 4000M/1600m to 1000FDX. Just change either side although I would suggest Auto as that protect for half a link failure (sort of like Cisco's UDLD) so in case TX on 1 side fails the link on BOTH switches will go down thereby preventing a black hole.
2512 firmware should be upgraded to F.05.17.
Thanks, Ardon
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тАО08-13-2003 10:24 PM
тАО08-13-2003 10:24 PM
Re: Gigabit LX module error in 4000m
Thanks for everyone!
Gabor