GLC-LH-SM

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Guest

GLC-LH-SM

Post by Guest » Sun Jan 09, 2011 3:10 pm

Hi,

 

I have two sites located approximately 5kms apart, they have 72 core SMOF connected between locations.

 

I have a 6509 at the core and a 3650E at the remote, both have GLC-LH-SM SPFs.

 

The interface at the 6509 is not connected

The interface at the 3560E is UP UP

 

If I shut the 6509 interface, the 3560E goes DOWN DOWN

 

All SFPs have been used previously, I have looped both ends and confirm that the interfaces come UP UP.

I have confirmed the TX and RX paths and they are correct.

 

Any suggestions?

 

Dan



Guest

Re:GLC-LH-SM

Post by Guest » Sun Jan 09, 2011 4:52 pm

Baileyshbr,

 

Our switch configuration is different to the modules indicated in the links you provided, but this put me on the right track.

 

I read through the document and when back in and shut the gigabit interface and then set the speed nonnegotiate command (again). waited, then no shut the interface and it has come up.

 

Thanks.

 

Dan


Guest

Re:GLC-LH-SM

Post by Guest » Sun Jan 09, 2011 5:16 pm

Did you try to measure the optical power received on the 6500 and the power sent on the 4500 ?

It is possible the power level of the signal received on the 6500 is outside the receive window of the SFP.

 

Fred


Guest

Re:GLC-LH-SM

Post by Guest » Sun Jan 09, 2011 6:30 pm

If available for the port in question, you could use the following command to see the receive/transmit power:

sh int gig x/y/z transceiver detail

 

Fred


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