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Switches, Hubs, and Modems
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Fiber from 4000m to 4108gl

RobB_8
Advisor

Fiber from 4000m to 4108gl

I seem to be having trouble getting a 4000m to talk to a 4108. The 4000m is using 4113 GB SX module, and the 4108 is using 4864 trensceiver module with a single GB SX tranceiver in it. I have done the following to troubleshoot:
- tried new tranceiver on 4000m
- tried moving the tranceiver to a new slot
- tried a new sc to sc to sc cable
- tried new tranceiver module in the 4108
- tried new module in the tranceiver module
- tried moving the slot on the 4108 for the sc module and for the whole tranceiver module
- tried replacing all parts with known goods
I do not get a link light on either side...
2 REPLIES
Matt Hobbs
Honored Contributor

Re: Fiber from 4000m to 4108gl

This is has got everyone at least once before...

ftp://ftp.hp.com/pub/networking/software/5990-6047.pdf (page 5&6)

With the 8000M the fibre ports defaulted to 1000-FDX. The 4100GL and all newer products default to Auto.

All you need to do is change this setting on one of the switches so that they match.
Russ_57
Advisor

Re: Fiber from 4000m to 4108gl

Yep, Matt is right. It got me, too. Easy to overlook.

Russ